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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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