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กติกา สระมณีอินทร์ |
Q3 |
นานาชาติ |
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| 2 |
Physical Well-Being in Elders in North-Eastern Thailand |
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กติกา สระมณีอินทร์ |
Q3 |
นานาชาติ |
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| 3 |
Health risk assessment of chlorpyrifos inhalation exposure among chilli-growing farmers in Na-Krasaeng Sub-District, Det Udom district, Ubon Ratchathani province, Thailand. |
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ชิดหทัย เพชรช่วย |
Q3 |
นานาชาติ |
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| 4 |
Morphology of mandibles and food size in two fairy shrimps (Branchiopoda: Anostraca) from Thailand |
Morphology of mandibles and food size in two fairy
shrimps (Branchiopoda: Anostraca) from Thailand |
We analyzed the asymmetrical molar surfaces of two fairy shrimps, Streptocephalus sirindhornae Sanoamuang, Murugan, Weekers & Dumont, 2000 and Branchinella thailandensis Sanoamuang, Saengphan & Murugan, 2002. The peripheral region of the left and right mandibles in both species has several rows of rectangular teeth. Each row has 5–8 small stubby denticles in S. sirindhornae and 6–14 numerous, small, sharp denticles in B. thailandensis. The posteriodorsal region of the left mandible bears one row of 11 large, stout teeth and one row of six large, stout teeth, respectively. The posteriodorsal region of the right mandible in S. sirindhornae has three rows of teeth, whereas in B. thailandensis it has two rows plus a tuft of setae. The intersetular distance of filter-feeding limb endites in B. thailandensis is wider (1.37 ± 0.27 µm) than that of S. sirindhornae (0.38 ± 0.02 µm). These morphological differences affect feeding behaviour. Feeding experiments showed that B. thailandensis can consume larger starch grains than S. sirindhornae. The largest percentages of ingested food size in both immature and mature shrimps are in the 5–30 µm range. Because B. thailandensis tends to mature far earlier than cooccurring S. sirindhornae, we hypothesise that B. thailandensis adults may consume S. sirindhornae nauplii. No evidence of cannibalism was found in the two species. |
สุทธนา ปลอดสมบูรณ์ |
Q3 |
นานาชาติ |
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| 5 |
Detection of a plasmid containing cadmium resistance gene for lactic acid bacteria isolated from foods |
Detection of a plasmid containing cadmium resistance gene for lactic acid bacteria isolated from foods |
This study aimed to isolate lactic acid bacteria (LAB) carrying cadmium resistant genes on plasmids from foods. A total of 30 fermented food samples were collected from local markets and supermarkets. Isolation of cadmium resistant LAB colonies was performed by spread plate technique using MRS agar medium supplemented with cadmium (MRS-Cd). One hundred and fifty cadmium resistant isolates were randomly selected and subjected to plasmid extraction. Only one isolate (LAB-V12) from a fermented vegetable harbored a single plasmid of about 9 Kb. 16S rDNA sequencing data showed that LAB-V12 was likely to be Lactobacillus plantarum. The results from plasmid curing demonstrated that a cured strain of the LAB-V12 was sensitive to cadmium. Hence, probably cadmium resistant marker is plasmid mediated. The plasmid containing cadmium resistance gene was tested for stability in its host. It was observed that the LAB-V12 could maintain the plasmid after approximately 100 generations of growth without cadmium selection. The plasmid might be further developed to be a food-grade cloning vector that is useful for genetic modification of LAB. |
พงศ์ศักดิ์ รัตนชัยกุลโสภณ |
Q4 |
นานาชาติ |
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| 6 |
Multiplex PCR based detection of Salmonella enterica serovars Typhi, Paratyphi A, B and C in drinking water and food. |
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พงศ์ศักดิ์ รัตนชัยกุลโสภณ |
Q3 |
นานาชาติ |
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| 7 |
Ethyl Carbamate Degrading Enzyme from Yeast Meyerozyma caribbica strain SKa5: Purification and Biochemical Properties |
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จันทรพร ทองเอกแก้ว |
Q3 |
นานาชาติ |
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| 8 |
Potential of bacteriophage PUB 36 to enhance nonspecific immune response and disease resistance of tilapia (Oreochromis niloticus) |
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ปาริชาติ พุ่มขจร |
Q3 |
นานาชาติ |
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| 9 |
A lytic podoophage specific to fish pathogenic Edwardsiella tarda |
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ปาริชาติ พุ่มขจร |
Q3 |
นานาชาติ |
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| 10 |
Screening and Optimization of Beta-Glucosidase Production by Candida Sp. JK9/1 |
Screening and Optimization of Beta-Glucosidase Production by Candida Sp. JK9/1 |
A total of 73 yeast strains were screened for an extracellular β-glucosidase producing ability by using substrate p-nitrophenyl-β-D-glucoside (pNPG). Among them strain JK9/1 showed the maximum β-glucosidase activity which was further identified as Candida sp. strain JK9/1 based on ITS1-5.8S-ITS2 and D1/D2 domains of the subunit (26S) ribosomal DNA. Optimum conditions for β-glucosidase production were determined using different biophysical and biochemical parameters. The maximum -glucosidase production was obtained in the optimum medium containing 1.5% (w/v) of xylose as a carbon source and 0.02 % (w/v) KNO3 as additional inorganic nitrogen, with an initial medium pH of 4.0 and at 25oC for 6 days of cultivation. Under optimal conditions, Candida sp. strain JK9/1 produced the enzyme of 7.21 ± 0.19 U.mL-1, which was 4.2 times higher than the amount before optimization (1.71±0.03 U.mL-1). This can contribute its β-glucosidase producing ability for a great potential to be used in the biotechnological application. |
จันทรพร ทองเอกแก้ว |
Q4 |
นานาชาติ |
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| 11 |
การศึกษาระดับความดังเสียง การแยกวิเคราะห์ความถี่เสียง และการสูญเสียการได้ยินเบื้องต้นในโรงงานตัดเย็บเสื้อผ้า |
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กานต์นลินญา บุญที |
Q1 |
นานาชาติ |
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| 12 |
Getting a drink: an experiment for enabling a sustainable practice in Thai university settings |
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ณฐพล ทองปลิว |
Q2 |
นานาชาติ |
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| 13 |
Effect of temperature on antimicrobial activity and mode of action of thymol against Staphylococcus aureus. |
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ปาริชาติ พุ่มขจร |
Q2 |
นานาชาติ |
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| 14 |
การแยกและศึกษาคุณสมบัติของแบคเทอริโอเฟจที่จำเพาะต่อ Shigella dysenteriae จากน้ำเสียที่เก็บจากโรงพยาบาล |
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ปาริชาติ พุ่มขจร |
Q2 |
นานาชาติ |
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| 15 |
An NAD+ Phosphorylase Toxin Triggers Mycobacterium tuberculosis Cell Death |
An NAD+ Phosphorylase Toxin Triggers Mycobacterium tuberculosis Cell Death |
Toxin-antitoxin (TA) systems regulate fundamental cellular processes in bacteria and represent potential therapeutic targets. We report a new RES-Xre TA system in multiple human pathogens, including
Mycobacterium tuberculosis. The toxin, MbcT, is bactericidal unless neutralized by its antitoxin MbcA. To investigate the mechanism, we solved the 1.8 Å-resolution crystal structure of the MbcTA complex. We found that MbcT resembles secreted NAD+-dependent bacterial exotoxins, such as diphtheria toxin. Indeed, MbcT catalyzes NAD+ degradation in vitro and in vivo. Unexpectedly, the reaction is stimulated by inorganic phosphate, and our data reveal that MbcT is a NAD+ phosphorylase. In the absence of MbcA, MbcT triggers rapid M. tuberculosis cell death, which reduces mycobacterial survival in macrophages and prolongs the survival of infected mice. Our study expands the molecular activities employed by bacterial TA modules and uncovers a new class of enzymes that could be exploited to treat tuberculosis and other infectious diseases. |
กัลย์ชิญาภัท อริยะเชาว์กุล |
Q1 |
นานาชาติ |
ชื่อวารสาร
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Molecular Cell
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| 16 |
Evaluation of Candida easanensis JK8 β-glucosidase with potentially hydrolyse non-volatile glycosides of wine aroma precursors |
Evaluation of Candida easanensis JK8 β-glucosidase with potentially hydrolyse non-volatile glycosides of wine aroma precursors |
Important ‘floral’ aromas naturally occur in grapes predominantly as flavourless glycoconjugate precursors. Since these aroma compounds can be released by hydrolysis, different glycosidase enzymes can potentially contribute different aromas to wines. In this paper, the effects of crude and purified Candida easanensis JK8 β-glucosidases on wine aroma precursors of Muscat of Alexandria grape powder were investigated by GC/MS combined with stir bar sorptive extraction (SBSE). A total of 19 bound volatile compounds were identified, including phenols, terpenes, aldehyde, ester and alcohols. The concentrations of terpenes especially nerol and geraniol, and β-Damascenone, a C13-norisoprenoid, contributes flowery and slightly fruity aromas were significantly increased in enzyme treated. These results suggest the potential application of this yeast β-glucosidase as an aroma-enhancing enzyme in winemaking. |
จันทรพร ทองเอกแก้ว |
Q3 |
นานาชาติ |
ชื่อวารสาร
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Natural Product Research
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| 17 |
Effect of high temperature and light intensity on physiology and morphology in young Dipterocarpus alatus Roxb. leaf |
Effect of high temperature and light intensity on physiology and morphology in young Dipterocarpus alatus Roxb. leaf |
Heat and high light intensity affected physiology and morphology of young Dipterocarpus alatus Roxb. leaf studied. D. alatus is a native forest tree and being extended to cultivation in the field as an economic crop. Nowadays, climate change due to increasing in temperature and light intensity can affect growth, morphological and photosynthetic traits in D. alatus. This research aimed to study the effects of high temperature and strong light intensity on physiology and morphology of the young D. alatus. The experiment was decided in CRD with 5 replications. The two-year-old D. alatus was treated with combination stress between temperature (at 35°C or 41°C) and light intensity (at 700 or 1800 μmol m-2s-1) for 7 days. Plant morphology, gas exchange, PSII efficiency and photosynthetic pigment contents were measured. Strong light intensity (1800 μmol m-2s-1) affected plant morphology by leaf burning and heat injury. However, high temperature (41°C) combined with strong irradiation enlarged leaf injury and also increased percentage of heat injury (3.01±0.81%; T41L1800) compared to control (0.07±0.00%; T35L700). In contrast, it reduced percentages of leaf angle (-8.77±2.82%) and leaf area (-1.04±0.38%). In addition, the combination stress influenced reduction of net photosynthetic rate and contents of Chl a+b and Chl a but unaffected Chl b and Car contents. Therefore, combined stress affected young D. alatus by damaging photosynthetic pigments such as Chl a and injured leaf tissue. This resulted in reduction in both of photosynthetic mechanism and D. alatus leaf growth. Thus, young D. alatus leaf (two-year-old) was susceptible to heat combined with excessive light. |
ช่อทิพย์ กัณฑโชติ |
Q4 |
นานาชาติ |
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| 18 |
Vertical Variation of Carbonaceous Aerosols within the PM2.5 Fraction in Bangkok, Thailand |
Vertical Variation of Carbonaceous Aerosols within the PM2.5 Fraction in Bangkok, Thailand |
Asian megacities are undergoing rapid population and infrastructure growth, which is resulting in significant air quality problems linked to atmospheric fine particles (PM2.5). This study focuses on characterizing carbonaceous aerosols in an urban area of Bangkok, Thailand. The Microclimate and Air Pollutants Monitoring tower is located on the edge of Kasetsart University campus and was used to perform vertical measurements. Mass concentration data were collected using area dust monitors (ADR1500) at different levels above the ground (30 m, 75 m, and 110 m) during two time periods, daytime (08:00– 19:00) and nighttime (20:00–07:00), throughout the monsoon season in 2015. All relevant micrometeorological parameters were simultaneously monitored. Backward air mass trajectories were calculated using HYSPLIT to assess the possible external pollution contributions. The thermal optical transmittance (TOT) method following the NIOSH 870 protocol was used to determine amounts of elemental carbon (EC) and organic carbon (OC) in samples. A data analysis showed average PM2.5 values at observation heights of 30 m, 75 m, and 110 m of 6.21 ± 2.45, 8.12 ± 3.65, and 9.03 ± 3.93 µg m–3, respectively; corresponding OC concentrations of 4.13 ± 2.65, 4.01 ± 4.07, and 4.11 ± 3.58 µg m–3, respectively, and EC concentrations of 1.02 ± 0.84, 1.07 ± 0.95, and 0.50 ± 0.70 µg m–3, respectively. The results show distinct gradients of increasing concentrations of PM2.5 with increasing elevation in contract with the OC and EC concentrations which decrease with height. |
สุพรรณิการ์ ซาเหลา |
Q1 |
นานาชาติ |
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| 19 |
Assessing and analysing the socio-ethical impacts of plate waste: A case of university canteens in Thailand |
Assessing and analysing the socio-ethical impacts of plate waste: A case of university canteens in Thailand |
Emerging consumers have driven the transformation of lifestyles and consumption patterns in Thailand to resemble industrialised countries. In Thailand, food waste generated from the consumption of consumers (plate waste) has become problematic and the number of research is still limited. This research conceptualises Thai consumers' roles to address plate waste and quantifies plate waste at university canteens for assessing and analysing socio-ethical impacts. Waste hierarchy and citizen-consumer concepts are used to analyse consumers' roles and to guide the analysis on socio-ethical impacts of plate waste. The canteens at Ubon Ratchathani University (UBU) became the investigation site. It is revealed that bringing in the citizen-consumer concept broadens what Thai consumers can do to address food waste, offering potentials to promote sustainable food provision systems and consumption practices. For the socio-ethical aspect, it is found that a week of plate waste from about 3,800 consumers could feed 116 Thai adults for one day. |
ณฐพล ทองปลิว |
Q3 |
นานาชาติ |
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| 20 |
Assessing and analysing the socio-ethical impacts of plate waste: a case of university canteens in Thailand |
Assessing and analysing the socio-ethical impacts of plate waste: a case of university canteens in Thailand |
Emerging consumers have driven the transformation of lifestyles and consumption patterns in Thailand to resemble industrialised countries. In Thailand, food waste generated from the consumption of consumers (plate waste) has become problematic and the number of research is still limited. This research conceptualises Thai consumers' roles to address plate waste and quantifies plate waste at university canteens for assessing and analysing socio-ethical impacts. Waste hierarchy and citizen-consumer concepts are used to analyse consumers' roles and to guide the analysis on socio-ethical impacts of plate waste. The canteens at Ubon Ratchathani University (UBU) became the investigation site. It is revealed that bringing in the citizen-consumer concept broadens what Thai consumers can do to address food waste, offering potentials to promote sustainable food provision systems and consumption practices. For the socio-ethical aspect, it is found that a week of plate waste from about 3,800 consumers could feed 116 Thai adults for one day. |
ณฐพล ทองปลิว |
Q3 |
นานาชาติ |
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| 21 |
Addressing plate waste and consumption practice at university canteens: realizing green university through citizen-consumers |
Addressing plate waste and consumption practice at university canteens: realizing green university through citizen-consumers |
This study aims to explore ways to minimize plate waste at university canteens by studying plate waste and consumers at three main canteens of a university, Thailand. Using university canteens in Thailand as a case, plate waste was characterized and quantified and consumers’ insights concerning food consumption practices were examined through focus group discussion. The results revealed that each consumer wasted edible food around 19 grams/meal. The generation of plate waste is affected by the food provision system, including canteen setting, food purchasing procedure and food quality. In addition, the presence of stray dogs in the canteens inhibited consumers from finishing up their food. Thus, improving the food provision system is crucial to engage consumers in achieving zero plate waste. |
ณฐพล ทองปลิว |
Q2 |
นานาชาติ |
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| 22 |
Production of endoglucanases by Streptomyces thermocoprophilus CP1 using rice straw as a substrate |
Production of endoglucanases by Streptomyces thermocoprophilus CP1 using rice straw as a substrate |
Rice straw is a major agricultural waste that can be used as an alternative substrate to expensive raw materials for endoglucanases (CMCase) production by microorganisms. This study aimed to search for a microorganism having the potential to produce endoglucanase from rice straw. From compost samples, 40 bacterial colonies were isolated on carboxymethylcellulose (CMC) agar. Among them, 16 isolates showed a hydrolysis zone on a CMC agar plate with hydrolysis (HC) values ranging from 1.15±0.02 to 4.40±0.52. Based on hydrolysis zone diameter and HC value, isolates CP1, CP2 and CP3 were further examined for their CMCase production in CMC broth. According to CMCase production and stability, isolate CP1 was selected for further study. The optimal pH and temperature for CMCase production of isolate CP1 were 5 and 45 °C, respectively. When using pre-treated rice straw as a substrate for semisolid-state fermentation, the highest CMCase activity of 0.142 ± 0.008 U/mL was obtained in a medium containing pre-treated rice straw of 60 g/L. The sequence alignment analysis and phylogenetic analysis suggested that the isolate CP1 was likely to be Streptomyces thermocoprophilus. The microorganism obtained from this study may be not only industrially important but also beneficial to the environment. |
จิดาภา แสงสวันต์ |
Q4 |
นานาชาติ |
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| 23 |
Approaching circular economy in an emerging economy: a solid-waste reutilization initiative in a small fresh market in Thailand |
Approaching circular economy in an emerging economy: a solid-waste reutilization initiative in a small fresh market in Thailand |
Fresh markets play crucial roles in everyday life in emerging economies such as Thailand. Operated by local governments or small companies, these facilities are regarded as less equipped actors for utilizing resources and handling environmental problems, including solid waste. Therefore, the operations of fresh markets are considered as a linear business model where materials and wastes are not efficiently utilized in the economic system. Taking the case of the Don Klang Market, Thailand, this research investigated how a strategic environmentally motivated corporate social responsibility (CSR) initiative on solid waste can transform a linear flow of solid waste for realizing circular economy (CE). Through a society-wide social return on investment analysis, the results reveal that the strategic environmental CSR on solid waste creates impacts toward CE benefiting the company and stakeholders. Moreover, the study reveals that assistance is essential for small companies to take up a role in promoting CE. This research contributes to the improvement of solid-waste management and sheds some light on CE realization through CSR in the context of emerging economies. |
ณฐพล ทองปลิว |
Q1 |
นานาชาติ |
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| 24 |
Addressing Waste Management in Fresh Markets in Thailand: A Triad-Network Model for Improving Waste Systems |
Addressing Waste Management in Fresh Markets in Thailand: A Triad-Network Model for Improving Waste Systems |
Fresh markets or wet markets function as important places for exchanging food stuffs and meeting of local people in many emerging economies. Through many activities in fresh markets, solid waste is substantially generated and becomes a main environmental issue. In Ubon Ratchathani, Thailand, solid waste in fresh markets emerges as an environmental issue with potentials to be improved. Selecting two fresh markets with different ownerships in Ubon Ratchathani, the concepts of waste hierarchy and triad-network model were applied to study and compare ways to improve solid waste management systems. Through focus group discussions and semi-structured interviews, this research reveals that solid waste managements of the two markets are centrally organized by the owners with the emphasis on tidiness with little involvements from other actors. To improve waste managements, moving beyond legal requirements and engaging relevant actors are essential. It is also found that different ownership (public vs. private) affects how fresh markets can organize improvement strategies. |
ณฐพล ทองปลิว |
Q2 |
นานาชาติ |
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| 25 |
Kazachstania surinensis f.a., sp. nov., a novel yeast species isolated from Thai traditional fermented food |
Kazachstania surinensis f.a., sp. nov., a novel yeast species isolated from Thai traditional fermented food |
Seven yeast strains (UBIF12-1, UBFB13-1, SRFS56-3, SRFS57-2, SKFS62-1, SKFS66-1 and SKFS67-1) representing a single anamorphic novel yeast species were isolated from traditional Thai fermented foods in Ubon Ratchathani, Surin and Sisaket in the northeast part of Thailand. The results of analysis of the sequences of the D1/D2 region of the large subunit (LSU) rRNA gene and the internal transcribed spacer (ITS) region indicated that the seven strains showed zero to one nucleotide substitutions in the sequences of the D1/D2 region of the LSU rRNA gene, and zero to four nucleotide substitutions in the ITS region. Kazachstania humilis CBS 5658T was the most closely-related species, but with 0.7–0.9% nucleotide substitutions in the D1/ D2 region of the LSU rRNA gene, and 2.0–2.2% nucleotide substitution in the ITS region. The results of a phylogenetic analysis based on the concatenated ITS and D1/D2 regions confirmed that the seven strains represented a single species of the genus Kazachstania distinct from the other recognized species of the genus. Furthermore, the morphological, biochemical and physiological properties of the seven strains not only indicated that they represented members of the genus Kazachstania, but that they were separated from K. humilis and K. pseudohumilis, the two most closely related species in the phylogenetic tree. There-fore, the seven strains were identified as representing a novel species, for which we propose the name Kazachstania surinensis f.a., sp. nov. The holotype is TBRC 15053T (isotype: SRFS57-2 and PYCC 9021). The MycoBank number of the novel species is 841892. © 2022 The Authors. |
ประสงค์สม ปุณยอุปพัทธ์ |
Q1 |
นานาชาติ |
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| 26 |
Constructing practice-oriented futures for sustainable urban food policy in Bangkok |
Constructing practice-oriented futures for sustainable urban food policy in Bangkok |
Conventional policy approaches emphasize technical solutions and individual behavioral change, but practice-based policy approaches offer an alternative. This paper examines the operationalization of a practice-oriented futures policy development process. The process builds on practice theory to generate alternative sustainable future pathways and policy intervention ideas, and in doing so, extends the vocabulary for policy-focused futures work. We focus on three practices with implications for urban sustainability - food purchasing, eating out, and home cooking in Bangkok, Thailand. A multi-phase process of interlinked workshops including visioning, scenario evaluation, and transition pathways was enacted with food system actors and policy makers. Role-play and narrative elements were incorporated to elicit transformative and systems knowledge on how practices are or might be embedded in everyday life and generated policy ideas to enable such practices to emerge in the future. Different practices showed varying degrees of amenability to the process, based on participants' sense of agency and individual and community-based practice memories. This paper contributes to our understanding of how future practices are co-constructed and how policies might guide practice trajectories in the future. Practice-oriented futures policy development opens pathways for integrated policy ideas, mirroring the growing recognition for integrated governance structures. |
ณฐพล ทองปลิว |
Q1 |
นานาชาติ |
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| 27 |
Distribution of Kazachstania Yeast in Thai Traditional Fermented Fish (Plaa-Som) in Northeastern Thailand |
Distribution of Kazachstania Yeast in Thai Traditional Fermented Fish (Plaa-Som) in Northeastern Thailand |
Thai traditional fermented fish products (Plaa-som) from four provinces (Ubon Ratchathani, Surin, Sisaket, and Khon Kaen) in the northeast part of Thailand were collected and analyzed to determine their salt content, total acidity, and pH. Yeasts in all samples were isolated and identified to the genus and species level based on sequence analysis of the D1/D2 of the large subunit (LSU) rRNA gene and the internal transcribed spacer (ITS) region. The results revealed that the salt content, total acidity, and pH values are in the range of 2.01–6.9%, 0.62–1.9%, and 4.4–6.57%, respectively. Moreover, 35 strains of yeast were isolated and identified as eight genera, namely Candida, Diutina, Filobasidium, Kazachstania, Pichia, Saccharomyces, Torulaspora, and Yarrowia with 17 species. The ascosporogenous yeast, Kazachstania, was the most dominant genus found and was widely distributed among the fermented food samples. In addition, a new strain of yeast, Kazachstania surinensis, was also discovered in Plaa-som samples. Thus, this study is the first to report the presence and wide distribution of these yeasts in fish fermentation products. |
พงศ์ศักดิ์ รัตนชัยกุลโสภณ |
Q2 |
นานาชาติ |
ชื่อวารสาร
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Journal of Fungi
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| 28 |
Probiotics: Sources, selection and health benefits |
Probiotics: Sources, selection and health benefits |
Probiotics are defined as “live microorganisms that, when administered in adequate amounts, confer a health benefit on the host”. Nowadays, the probiotic market is growing tremendously by using probiotics especially in foods, dietary supplements and pharmaceutical applications. Sometimes, the consumers get confused between probiotics and non-probiotics. A more precise use of the term “probiotics” will be useful to guide consumers and other stakeholders in differentiating the diverse products on the market. Since efficacy of probiotics is strain specific, the appropriate selection of probiotics is extremely important. This review focuses on discussing the following issues of probiotics including their major sources, selection criteria, health benefits and possible harms. The main selection criteria for probiotics include the following ability to: tolerate into a product at a sufficient level and remain viable throughout the shelf life of the product; withstand transit through a gastrointestinal tract; adhere to intestinal epithelial cells and colonize the lumen of the tract; produce antimicrobial substances against the pathogens and to be harmless to a host associated with the health benefits. The major health benefits of probiotics involve an improvement of intestinal health, an enhancement of the immune response, a prevention/treatment of infectious disease and a prevention/treatment of cancer. |
พงศ์ศักดิ์ รัตนชัยกุลโสภณ |
Q4 |
นานาชาติ |
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| 29 |
Tarenna thorelii (Rubiaceae), a new record for Thailand |
Tarenna thorelii (Rubiaceae), a new record for Thailand |
arenna thorelii is reported as a new record for Thailand based on collections from Khon Kaen and Roi Et Provinces. A morphological description based on Thai specimens, distribution, ecological information, conservation status, and short notes on the species as well
as an illustration are provided. In addition, a lectotype for T. thorelii is proposed. |
วิโรจน์ เกษรบัว |
Q4 |
นานาชาติ |
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| 30 |
Additions to Hohenbuehelia (Basidiomycota, Pleurotaceae): two new species and notes on H. tristis from northern Thailand |
Additions to Hohenbuehelia (Basidiomycota, Pleurotaceae): two new species and notes on H. tristis from northern Thailand |
Two new species and a first geographical record of Hohenbuehelia are described from Thailand. Macroscopic and microscopic descriptions with photoplates, as well as a multigene phylogeny are provided. Hohenbuehelia flabelliformis sp. nov. is recognised by large flabelliform basidiomata, densely villose yellowish-white pileus with white hairs near the point of attachment, basidiospores that mostly are ellipsoid in front view and phaseoliform in side view, the absence of cheilocystidia, and a trichoderm pileipellis. Hohenbuehelia lageniformis sp. nov. is characterised by fleshy basidiomata, velutinous pileus with whitish hairs near the point of attachment and the margin, elsewhere pale greyish-yellow and with only sparse white hairs, pale brown to light brown and mucilaginous context, subglobose basidiospores, lageniform cheilocystidia, an ixotrichoderm pileipellis, and the absence of pileoleptocystidia. Hohenbuehelia tristis is characterised by small creamy-white, spathuliform basidiomata that are larger than the type subspecies, minutely pubescent pileus with tiny greyish hairs that disappear when mature, leaving the surface glutinous, faintly translucent and shiny, ellipsoid to sub-ellipsoid basidiospores, lecythiform to sublageniform cheilocystidia, and an ixotrichoderm pileipellis. Hohenbuehelia tristis is recorded for Thailand for the first time. Based on the polymorphism observed in part of the nrLSU gene, the presence of two divergent lineages within H. tristis is discussed. |
สัณฐิติ วัฒนราษฎร์ |
Q1 |
นานาชาติ |
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| 31 |
Molecular and biotechnological characteristics of proteolytic activity from Streptococcus thermophilus as a proteolytic lactic acid bacteria to enhance protein-derived bioactive peptides |
Molecular and biotechnological characteristics of proteolytic activity from Streptococcus thermophilus as a proteolytic lactic acid bacteria to enhance protein-derived bioactive peptides |
The demand for healthy food items with a high nutrient value of bioavailability and bioaccessibility has created a need for continuous development of technology and food ingredients like bioactive peptides. This study aimed to investigate seven proteolytic lactic acid bacteria (PLABs) isolated from the plaa-som (fermented fish) sample originated from silver BARB species for production of proteolytic enzymes. Proteolytic enzymes produced by (PLABs) were used further to create potent bioactive peptides by hydrolyzing proteins throughout PLAB-probiotics enhancer. Protein derived-bioactive peptides was tested the proteolytic activity on different protein sources and examined bioactivities including antioxidative and antimicrobial effect for further use in functional foods. Results of screened-PLAB strains showed high proteolytic activity namely Streptococcus thermophilus strains (KKUPA22 and KKUPK13). These strains have proteolytic system consisting of extracellular and cell-bound enzymes that used for degrading protein in fish flesh protein (FFP) and skim milk (SKM) broth media. Proteolytic activity of tested bacterial enzymes was estimated after incubation at 45, 37, and 50 °C. Furthermore, FFP hydrolysates were formed with various peptides and has small molecular weights (checked by SDS-PAGE) in the range of10.5 to 22 kDa), exhibiting strong activity. Data revealed that S. thermophilus strains (KKUPA22 and KKUPK13) had high antioxidant activity in term of 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonate) (ABTS) radical-scavenging inhibition, and ferric reducing antioxidant power (FRAP) reducing power capacity. Both strains (KKUPA22 and KKUPK13) of S. thermophilus have higher antimicrobial activity against Gram-negative bacteria than against Gram-positive bacteria. We have confirmed presence of proteolytic (prt) gene regions in S. thermophilus strains using specific primers via PCR amplification. Results showed highest homology (100%) with the prtS gene of S. thermophillus located on the cell envelope proteolytic enzymes (CEPEs) such as serine proteinase. Therefore, it concluded that the proteolytic system of tested PLAB strains able to generate bioactive peptides-derived proteins having active biological property, good mechanism of degradability, and bioaccessibility for further use in catalyzing protein of functional foods. |
พงศ์ศักดิ์ รัตนชัยกุลโสภณ |
Q2 |
นานาชาติ |
ชื่อวารสาร
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AIMS Microbiology
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| 32 |
Effects of Pediastrum boryanum and Dried Chlorella as Feeds on the Growth Performance and Carotenoid Content of the Fairy Shrimp Branchinella thailandensis (Branchiopoda, Anostraca) |
Effects of Pediastrum boryanum and Dried Chlorella as Feeds on the Growth Performance and Carotenoid Content of the Fairy Shrimp Branchinella thailandensis (Branchiopoda, Anostraca) |
In this study, fresh Pediastrum boryanum and dried chlorella were chosen as alternative diets to feed the fairy shrimp Branchinella thailandensis instead of its most common, Chlorella vulgaris. In three separate trials, 5-day-old B. thailandensis was fed 6.8 x 106 cells mL-1 of fresh C. vulgaris (as a control), 6.8 x 106 cells mL-1 of fresh P. boryanum, and 3 mg of dry weight per individual of powdered chlorella for 15 days. Animals in each experiment were fed twice a day for 15 days with three replicates (n = 100 individuals per replicate). The results showed that the body length of B. thailandensis, which was fed fresh P. boryanum and dried chlorella for 5 days, had increased more than the control. However, at the end of the experiment, B. thailandensis fed with dried chlorella had a longer body length than those fed the control or P. boryanum (P > 0.05). The fairy shrimp fed with P. boryanum for 15 days had the highest survival rate of 70.8%, followed by the control (70.0%) and dried chlorella (28.3%) (P < 0.05). Additionally, B. thailandensis fed with P. boryanum had the highest protein content of 73.37%, compared to those fed with dried chlorella (63.77%) and the control (54.14%) (P < 0.05). In contrast, the treatments fed with P. boryanum had significantly lower lipid and carbohydrate contents (3.21 and 11.29%) than those fed with the control (3.56, 26.88%) and the dried chlorella (3.50, 26.53%) (P < 0.05). The highest total carotenoid content, however, was 380.19 g g-1 in B. thailandensis fed with dried chlorella, followed by P. boryanum (310.91 g g-1) and the control (200.53 g g-1 dry weight) (P < 0.05). Therefore, it is possible to promote fresh P. boryanum as a substitute for feeding fairy shrimp. Nonetheless, it is advised to feed the shrimp that were reared for 5–10 days with dried chlorella when live algae are scarce. These results will aid the development of shrimp farming practices. |
สุทธนา ปลอดสมบูรณ์ |
Q3 |
นานาชาติ |
ชื่อวารสาร
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Tropical Natural History
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| 33 |
Arsenic, Iron, and Manganese Adsorption in Single and Trinary Heavy Metal Solution Systems by Bamboo-Derived Biochars |
Arsenic, Iron, and Manganese Adsorption in Single and Trinary Heavy Metal Solution Systems by Bamboo-Derived Biochars |
Currently, heavy metal-contaminated groundwater is an environmental concern. This study investigated the use of bamboo biochar, chitosan-impregnated biochar, and iron-impregnated biochar for arsenic, iron, and manganese removal from groundwater. Isotherms of arsenic, iron, and manganese adsorption by bamboo derived biochar were compared with those of commercial activated carbon in simulated groundwater composed of single and trinary heavy metal solutions. The binding of heavy metals by virgin and loaded bamboo biochar and activated carbon was also investigated by sequential extraction. Chitosan and iron-impregnated biochar had enhanced arsenic adsorption, but these sorbents turned the pH of solution acidic, while it was alkaline for activated carbon. Adsorption equilibrium times of arsenic and iron were faster for single than trinary heavy metal systems because less ion competition occurred at active sites. The Langmuir model fitted the adsorption data well. The maximum adsorption capacities of arsenic, iron, and manganese by bamboo biochar in trinary heavy metal system were 2.2568, 0.6393, and 1.3541 mg g−1, respectively. The main mechanism for arsenic removal was precipitation with iron. Bamboo biochar bound iron in organic and sulfide fractions and manganese with iron-oxide. Bamboo biochar can replace activated carbon as a more efficient and sustainable carbonaceous sorbent material for removal of mixed heavy metals from groundwater within acceptable pH ranges. |
พรวฤณ วิลามาศ |
ยังไม่มีระดับ Quartile Scor |
นานาชาติ |
|
| 34 |
Inocybe hopeae sp. nov. and first record of Pseudosperma keralense (Inocybaceae) from Thailand |
Inocybe hopeae sp. nov. and first record of Pseudosperma keralense (Inocybaceae) from Thailand |
Based on genetic studies, supported further by morphological and ecological differences, we present a taxonomic novelty (Inocybe hopeae Raghoonundon & Raspé sp. nov.) and a new geographical record (Pseudosperma keralense) from forests of Northern Thailand. Inocybe hopeae is characterized by medium-sized basidiomes, brownish orange to brown pileus that is darker towards the margin, off-white to pale brown context, light brown to dark brown stipe with off-white basal mycelium and pale brown to grayish brown lamellae. A three-gene phylogeny (LSU, tef1, rpb2) coupled with macroscopic / microscopic descriptions and illustrations are provided confirming the species’ positions in their respective generic clades. Inocybe hopeae was sister to I. thailandica with strong support (BS = 100%, PP = 1.0). Our Thai collections of OR1629 had similar morphological characters and 100% identical sequences with the holotype of Pseudosperma keralense from India. |
สัณฐิติ วัฒนราษฎร์ |
Q3 |
นานาชาติ |
|
| 35 |
Application of baby corn husk as a biological sustainable feedstock for the production of cellulase and xylanase by Lentinus squarrosulus Mont. |
Application of baby corn husk as a biological sustainable feedstock for the production of cellulase and xylanase by Lentinus squarrosulus Mont. |
In an effort to use baby corn husk (BCH) as a sustainable feedstock for cellulase and xylanase production by the Lentinus squarrosulus Mont. isolate LS-YA (LSM-LS-YA), a suitable pretreatment method and fermentation strategies were developed. BCH pretreated with 1 M sodium hydroxide for 90 min, an alkaline pretreatment, exemplified an appropriate pretreatment method. In a 10-L external Venturi injector bioreactor, the highest cellulase and xylanase production was 4.12 ± 0.36 unit/mL and 6.15 ± 0.36 unit/mL, respectively, when 1 g/L diammonium hydrogen phosphate was used as the nitrogen source and the aeration rate was controlled at 0.2 vvm. This study provides an informative perspective on the production of cellulase and xylanase from agricultural lignocellulosic materials, which could reduce agricultural waste while supporting a zero-waste circular economy, and this fermentation process would be applicable to larger-scale production. |
ชริดา ปุกหุต |
Q1 |
นานาชาติ |
|
| 36 |
A new species of krait of the genus Bungarus (Squamata, Elapidae) from Ratchaburi Province, western Thailand |
A new species of krait of the genus Bungarus (Squamata, Elapidae) from Ratchaburi Province, western Thailand |
We described a new species of elapid snake genus Bungarus from the Tenasserim Mountain Range in Ratchaburi Province, western Thailand. Bungarus sagittatus sp. nov. can be distinguished from all congeners by having the combination of 15 dorsal scale rows; 215–217 ventral scales; 48–56 undivided subcaudal; prefrontal suture 2.4–2.6 times length of internasal suture; anterior chin shields larger than posterior chin shields; head of adult uniform black while juvenile black with small dim white patches on temporal and parietal areas; dorsal body black, with 25–31 white narrow bands, white and black bands at midbody covering 1.5–3.0 and 4.5–6.0 vertebral scales, respectively; dorsal body black bands not intruding ventrals or intruding ventrals less than 0.5 times of width of outer dorsal scales; ventral surface of body immaculate white; ventral side of tail white with a row of dark brown triangular patches on middle pointing posteriorly; tail relatively long, tail length/total length 0.140–0.143. Genetically, the new species has uncorrected pairwise divergences of ≥ 8.29% of the mitochondrial cytochrome b from other Bungarus species. Currently, the new species is only known from the type locality. |
ศิริพร ยอดทอง |
Q2 |
นานาชาติ |
|
| 37 |
Health risk assessment associated with consumption of heavy metal-contaminated vegetables: A case study in the southern area of Northeast Thailand |
Health risk assessment associated with consumption of heavy metal-contaminated vegetables: A case study in the southern area of Northeast Thailand |
This study aims to determine the amount of lead exposure and investigate the health hazards linked to the consumption of leafy vegetables contaminated with lead and cadmium. It focuses on a specific case study conducted in the southern region of Northeast Thailand. Five types of leafy vegetables, including Chinese kale, cabbage, Chinese cabbage, lettuce, and parsley, were collected from the Southern Northeast region of Thailand. The vegetable consumption of 3,831 individuals was calculated. The results showed that Chinese kale had the highest average lead contamination (0.009±0.015 mg/kg DW), followed by Chinese cabbage (0.005±0.01 mg/kg DW), cabbage (0.004±0.003 mg/kg DW), lettuce (0.003±0.003 mg/kg DW), and parsley (0.001±0.01 mg/kg DW), respectively. The evaluation results indicated that the margin of safety values for leafy vegetable consumption ranged between 4.49731E-05 and 0.04550, suggesting no major health risks. Based on geographical information, the lowest altitude was 95 m in the Warin Chamrap District of Ubon Ratchathani Province, while the highest was 450 m in the Pak Chong District of Chum Klat, Nakhon Ratchasima Province. Therefore, people in the Southern Northeast region of Thailand should be encouraged to cultivate vegetables for their own consumption based on the season, and hydroponic systems should be utilized. It is important to assess and monitor the levels of heavy metals in the vegetables intended for consumptions and potential adverse effects on the environment and, consequently, human health. When choosing vegetables, it is advisable for consumers to exercise prudence and choose produce sourced from reputable cultivation facilities. Additionally, to prevent the accumulation of pollutants that could result in long-term health effects, it is prudent to vary their vegetable intake. The data obtained can be used in remediation techniques and to implement control measures for heavy metal contamination in vegetables. |
กติกา สระมณีอินทร์ |
Q2 |
นานาชาติ |
ชื่อวารสาร
-
Environmental Challenges
|
| 38 |
0 |
0 |
The controlling microplastics (MPs) at source is a management method that can effectively reduce the amount of contamination in the environment. The main source of MPs was landfills that the decomposition of solid waste, MPs has an impact on environmental quality especially the health of humans. This research was investigated of MPs contamination at landfill site in the Muangpak municipality for analysis of MPs quantitative and source apportionment of MPs. The results of the composition of municipal solid waste by quartering method found that biodegradable solid waste was as high as 36.27% followed by general solid waste of 35.97% which was mostly plastic waste and effect the contamination of MPs in the environment. The distribution of MPs in environmental found that highest abundance was 66.44% of leachate sludge pond 1 followed by leachate sludge pond 2 (26.30%), sediment of surface water (3.32%), leachate pond 1 (1.04%), leachate pond 2 (0.80%), groundwater point 3 (0.62%), groundwater point 1 (0.58%), surface water (0.53%) and groundwater point 2 (0.37%). The contamination of polymer types of MPs at higher densities of low density polyethylene (LDPE) and high density polyethylene (HDPE) than polypropylene (PP) was found in samples closest to landfill area especially leachate pond more than 90%. The source apportionment of MPs using statistical analysis found that plastic waste has correlated to occurrence of LDPE and plastic bottle waste has correlated to occurrence of HDPE that both types of plastic waste are related to the amount of general solid waste and recycle solid waste increases every year. |
พงศ์ธร แสงชูติ |
Q3 |
นานาชาติ |
|
| 39 |
New species and new records of Laccaria (Agaricales, Basidiomycota) from Northern Thailand |
New species and new records of Laccaria (Agaricales, Basidiomycota) from Northern Thailand |
Two new species Laccaria pseudoalba and L. subroseoalbescens are described and illustrated, based on morphological characteristics and molecular phylogenetic analysis. Two new records, Laccaria umbilicata and L. yunnanensis from Thailand, are also reported. Laccaria subroseoalbescens is characterized by small basidiomata, stipe equal with an enlarged base, and nearly subclavate, pale pink to light orange. Laccaria pseudoalba is characterized by pale orange to orange white pileus, has umbo when young on the pileus, and fistulose stipe of the pale to pastel red color. Phylogenetic analysis based on sequence data from rDNA internal transcribed spacer ITS1-5.8S-ITS2 rDNA (ITS), nuc 28S rDNA (28S), RNA polymerase II subunit 2 (rpb2), and translation elongation factor 1-α (tef1-α) are provided as further evidence. Molecular analysis confirms the phylogenetic positions of the two new species and two new records. The differences in characteristics of these two new species and closely related species are discussed herein. |
สัณฐิติ วัฒนราษฎร์ |
Q1 |
นานาชาติ |
|
| 40 |
The description of the first rock-dwelling species of butterfly lizard Leiolepis Cuvier, 1829 (Squamata, Agamidae) from the Khorat Plateau in northeastern Thailand |
The description of the first rock-dwelling species of butterfly lizard Leiolepis Cuvier, 1829 (Squamata, Agamidae) from the Khorat Plateau in northeastern Thailand |
A new species of rock-dwelling Leiolepis is described from the Khorat Plateau in northeastern Thailand. Leiolepis glaurung sp. nov. can be differentiated from all other sexual species of Leiolepis by a combination of having a black gular region with a wide medial yellow stripe, a yellow ventrum with black mottling, bright red to orange subcaudal coloration, having reduced to no expandable flanks, and having only one black transverse bar on the flanks. This is the first rocky habitat-adapted Leiolepis. Leiolepis glaurung sp. nov. demon-strates numerous ecological adaptations to survive in these rocky habitats. Leiolepis are known for their expandable flanks with bright display colors, however Leiolepis glaurung sp. nov. has reduced or no ability to expand its flanks. We hypothesize this is an adapta-tion to reduce their body diameter to better fit into smaller rocky burrows unlike the larger and deeper burrows constructed in looser soils by other Leiolepis species. This discovery increases the number of Leiolepis species in Thailand to six, and worldwide to 11. |
ปรัชญาพร วันชัย |
Q1 |
นานาชาติ |
|
| 41 |
Properties of Laboratory Wastewater Having Influence Heavy Metals Treatment Efficiency by Chemical Precipitation |
Properties of Laboratory Wastewater Having Influence Heavy Metals Treatment Efficiency by Chemical Precipitation |
The influence of laboratory wastewater properties on heavy metals treatment efficiency by the chemical precipitation included aluminium sulphate (Al2(SO4)3) and poly aluminium chloride (PAC) using a stepwise multiple regression method. The laboratory wastewater properties showed high acidity approximately 0.75 and a highly turbid approximately 667.41 NTU that TSS (705.48 mg/l), COD (480.00 mg/l) and heavy metals such as Zn did not exceed the standards while Cu, Mn and Cr have levels exceeded the standards. Aluminium sulphate (Al2(SO4)3) coagulant has treatment efficiency for reducing heavy metals at a pH of 9 to 73.62%, 99.94%, 98.43%, 68.76% and 99.25% for various heavy metals (Cu, Fe, Mn, Zn and Cr) respectively with original laboratory wastewater properties that parameters of laboratory wastewater include TSS, BOD and pH having the highest influence on heavy metals treatment efficiency. The parameters of laboratory wastewater having the highest influence on heavy metals treatment efficiency when using poly aluminium chloride (PAC) were pH, COD, DO and BOD when at a pH of 9 has treatment efficiency for reducing heavy metals to73.67%, 99.94%, 98.45%, 69.76% and 99.26% for various heavy metals (Cu, Fe, Mn, Zn and Cr) respectively. |
พงศ์ธร แสงชูติ |
Q2 |
นานาชาติ |
|
| 42 |
Effects of Azadirachta indica Leaf Aqueous Extract supplemented Fish Diets on Innate Immune Response and Disease Resistance of Tilapia (Oreochromis niloticus) |
Effects of Azadirachta indica Leaf Aqueous Extract supplemented Fish Diets on Innate Immune Response and Disease Resistance of Tilapia (Oreochromis niloticus) |
Pseudomonas fluorescens is an important bacterial pathogen causing economic losses in aquaculture worldwide. The adverse effects of antibiotics raise public concerns on using them in aquaculture. The objective of this study was to examine the effectiveness of aqueous extract of Azadirachta indica leaves on nonspecific immunity and disease resistance in tilapia (Oreochromis niloticus). Fish diets supplemented with aqueous extract of A. indica at the concentrations of 0% (Diet 1), 1% (Diet 2), 1.5% (Diet 3) and 2% (Diet 4) were investigated for their effects on nonspecific immune response and disease resistance in tilapia. The fish given diet 3 and diet 4 for 3 weeks had increased levels of leukocyte phagocytic activity though higher activity was observed in diet 4 group. Diet 3 and diet 4 also enhanced plasma lysozyme activity in tilapia. The similar levels of lysozyme activity were found in the fish receiving both diets for 3 weeks. Only diet 4 had stimulatory effect on respiratory burst activity in tilapia. This effect was observed 3 weeks after feeding the fish with diet 4. Throughout the experiment, no significant differences (P > 0.05) in phagocytic, lysozyme and respiratory burst activities were found between group fed with diet 1 (control) and diet 2. Following 3 weeks after feeding, fish were infected with Pseudomonas fluorescens at median lethal dose (LD50). No mortality was found in the diet 4 group while 50%, 48% and 28% of cumulative mortality were found in the fish receiving diet 1, 2 and 3 respectively. These results indicate that the aqueous extract of A. indica may elevate the nonspecific immune response and enhance disease resistance in tilapia. |
พงศ์ศักดิ์ รัตนชัยกุลโสภณ |
Q4 |
นานาชาติ |
|
| 43 |
Open field hardening improves leaf physiological drought tolerance in young plants of Sindora siamensis |
Open field hardening improves leaf physiological drought tolerance in young plants of Sindora siamensis |
The effect of drought stress on leaf physiology was studied in 10-month-old plants of Sindora siamensis . Plants were either placed in an open greenhouse (unhardening; UH) or in an open field (open field hardening; H) for 45days. Both the UH and H plants stopped receiving water (D) until the initial drought injury and then rewatered (R) until complete recovery. Results showed necrosis in the leaves of UH+D, while H+D showed wilting at Day 7 after drought. A greater degree of necrosis was found in UH+D+R but made complete recovery in H+D+R at Day 4 after rewatering. Drought stress resulted in decreased leaf area in H, and reduced leaf and stem water status, PSII efficiency, net photosynthetic rate, stomatal conductance and transpiration rate in both UH and H. It also resulted in an increase in water use efficiency in both UH and H. Electrolyte leakage and malondialdehyde contents in UH were markedly increased due to drought stress. These results suggest that unhardened young plants of Sindora exposed to drought exhibited enhanced stomata behaviour by minimising open stomata and transpiration, resulting in high efficiency of water usage. However, there was still membrane damage from lipid peroxidation, which caused necrosis. Open field hardened plants exposed to drought demonstrated reduced open stomata and transpiration, thereby preserving leaf and soil water status and enhancing water use efficiency. This may be a reduction in lipid peroxidation though an oxidative scavenging mechanism that causes a slight alteration in membrane stability and a slight necrosis. |
ปรียานุช ลาขุนทด |
Q1 |
นานาชาติ |
ชื่อวารสาร
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Functional Plant Biology
|
