Life Sciences and Environment Journal
https://ph01.tci-thaijo.org/index.php/psru
<p>Life Sciences and Environment Journal is a peer-reviewed journal of Pibulsongkram Rajabhat University. The published articles cover 1. Agricultural and ฺBiological sciences 2. Environmental Sciences 3. Health Sciences and 4. Multidisciplinary sciences. The journal is indexed in TCI and ACI.</p> <p>Two issues are published a year (January-June and July-December).</p> <p>Online ISSN 2730-3527</p> <p>Print ISSN 2773-9201</p> <p> </p>
en-US
<p>Each article is copyrighted © by its author(s) and is published under license from the author(s).</p>
journal@psru.ac.th (Asst. Prof. Dr. Namthip Wongpratheep)
journal@psru.ac.th (Miss. Rutana Naksing (นางสาวรัตนา นาคสิงห์))
Fri, 06 Jun 2025 14:26:02 +0700
OJS 3.3.0.8
http://blogs.law.harvard.edu/tech/rss
60
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NUTRITIONAL AND ANTIOXIDANT PROPERTIES OF SPRAY-DRIED APPLE PEEL POWDER: VALUE-ADDED FOOD INGREDIENT PERSPECTIVE
https://ph01.tci-thaijo.org/index.php/psru/article/view/260640
<p>The frozen apple processing industry generates substantial by-products, particularly apple peels, which are often discarded as waste. This study developed spray-dried apple peel powder (SDAPP), preserving its nutrients, bioactive compounds, and antioxidant properties. SDAPP, stabilized and stored for six months, underwent a comprehensive analysis of its nutritional composition and antioxidant properties. Nutritional parameters, including ash, moisture, dietary fiber, protein, fat, sugar, and potassium, were analyzed using AOAC validated methods, while B-complex vitamins were quantified using a method adapted from Analytica Chimica Acta standards. Antioxidant activities were assessed using the DPPH free radical scavenging assay (IC<sub>50</sub>), total phenolic content (TPC), and total flavonoid content (TFC). The results revealed that SDAPP provides 396.39 kcal/100 g and 30 kcal per serving size (8.5 g), with 96.92 g of carbohydrates and 46.55 g of sugar/100 g. Protein and fat contents were low at 0.94 g and 0.55 g/100 g, respectively, with saturated fat accounting for only 0.20 g/100 g. SDAPP had a high potassium content of 269.70 mg/100 g and a low sodium content of 12.96 mg/100 g. The antioxidant activity showed the DPPH scavenging activity of 0.61 mg Trolox/g dry weight with the IC<sub>50</sub> value of 63.141 μg/ml. The TPC and TFC were 5.351 mg GAE/100 g and 7.26 mg QE/100 g, respectively. These findings highlight SDAPP’s nutritional and antioxidant potential, positioning it as a promising ingredient for functional food and beverage applications tailored to health-conscious and antioxidant-seeking consumers.</p>
Throngvid Hongsaprabhas, Piyawadee Saraphirom, Orn-Anong Chiyachet, Piyarat Namsena, Songklot Phonphuak, Panya Chairattanaphanich
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/260640
Wed, 28 May 2025 00:00:00 +0700
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DEVELOPMENT OF HOME TEXTILE PRODUCTS FOR THAI SENIOR-FRIENDLY LIVING ROOM
https://ph01.tci-thaijo.org/index.php/psru/article/view/257432
<p>The objective of this study was to develop textile products based on creative thinking and local material management through review and analysis of knowledge and information on systematic product development guidelines. The guidelines were then used in the real production process with the goal of adding value to home textile products, particularly krajood (<em>Lepironia articulata</em> (Retz.) Domin) mats, by creating a variety of products that may effectively join the market and meet the needs of users, who are the older group. The objectives of this development were to create better home textile products with distinctive designs and to educate interested groups of women (housewives) or senior citizens about the krajood compound mat production process in order to advance and grow their career. Research on housing issues for the elderly was conducted, along with physical characterization of the krajood strands, determination of the distinctive patterns of traditional krajood mats, preparation of rubber compound (an anti-slip rubber sheet), development of home textile products for elderly Thai people’s living rooms, creation of home textile prototypes (krajood compound mats), performance test and usability improvement of the krajood compound mats, and knowledge transfer regarding the development process of krajood compound mats. The conservation of the villagers’ way of life was reflected in the application of krajood weaving knowledge to the creation of textile products. Since handicrafts are intricate and delicate, it is important to pass on these wisdoms to the following generation. Training and education are therefore necessary, particularly in the areas of skills, techniques, and historic patterns. It is imperative that the villagers and community members recognize and value the significance of their unique local knowledge and wisdom in order to pass it to the next generation.</p>
Arena Isama, Apiruedee Anantaphan
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/257432
Wed, 05 Mar 2025 00:00:00 +0700
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ASSESSMENT OF EFFLUENT QUALITY FROM DRAINAGE PIPES IN PHITSANULOK MUNICIPALITY
https://ph01.tci-thaijo.org/index.php/psru/article/view/260059
<p>This study aimed to assess the quality of effluent discharged directly into the Nan River from drainage pipes within the Phitsanulok Municipality, Phitsanulok Province. Effluent samples were collected from 10 locations along both sides of the Nan River in April 2023. The analysis covered 11 parameters, including pH, DO, BOD, total solids, total dissolved solids, total suspended solids, oil and grease, nitrite, heavy metals, coliform bacteria, and fecal coliform bacteria, to evaluate the wastewater quality index (WQI). The results showed that the majority of wastewater was classified between acceptable to very poor quality classes, with WQI values ranging from 154.86 to 218.62. Notably, location 10 had the highest WQI of 218.62, indicating a very poor quality class. Key effluent quality parameters such as total solids (57.04±1.22 mg/L), BOD (32.28±22.54 mg/L), oil and grease (114.01±5.92 mg/L), iron (0.77±0.06 mg/L), total coliform bacteria (5,477±5,221 MPN/100mL), and fecal coliform bacteria (3,006±3,504 MPN/ 100mL) exceeded the effluent quality standards by 80%, 100%, 100%, 100%, 40%, and 90% of the sampling points, respectively. The findings highlight the urgent necessity to develop effective wastewater treatment systems and implement efficient wastewater management strategies to mitigate the long-term impacts on the Nan River and its ecosystem.</p>
Piyada Wachirawongsakorn, Sirima Khongmueang, Chanya Sabua
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/260059
Tue, 10 Jun 2025 00:00:00 +0700
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CHARACTERIZATION OF MANNANASE FROM POTENTIAL MANNAN-DEGRADING BACTERIA
https://ph01.tci-thaijo.org/index.php/psru/article/view/260555
<p>Mannanase is an enzyme that catalyzes the hydrolysis of mannan polysaccharides and has applications in diverse industries. It can be produced by various microorganisms, particularly bacteria, with each strain exhibiting unique enzymatic properties. This study aimed to select a potential mannanase-producing bacterial strain from isolates obtained from coconut residue-rich sites. In addition, identification of bacterial strain and enzyme characterization were performed. The results showed that isolate KD109 exhibited the highest enzyme activity at 1.58 U/ml. Based on 16S rRNA gene sequencing, KD109 showed over 99% sequence identity with <em>Klebsiella pneumoniae</em>. Characterization of the mannanase produced by this strain revealed that the optimum temperature of 50 °C and the optimum pH of 6. Substrate specificity analysis showed that the enzyme exhibited the highest specificity for mannan-based substrates, including konjac, followed by locust bean gum. Furthermore, this enzyme exhibited the activity on copra meal, a mannan rich by-product. This study indicated that <em>K. pneumoniae</em> KD109 could be a promising source of mannanase with potential applications in the degradation of mannan-containing raw materials for various industrial processes.<strong> </strong></p>
Kwankanit Intaratrakul
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/260555
Tue, 10 Jun 2025 00:00:00 +0700
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EFFICIENCY OF LOW-COST ADSORBENT MATERIALS FOR HYDROGEN SULFIDE REMOVAL FROM BIOGAS USING A FIXED BED ADSORPTION COLUMN
https://ph01.tci-thaijo.org/index.php/psru/article/view/260921
<p>This research aimed to test the efficiency of locally available, low-cost and efficient adsorbents suitable for removing hydrogen sulfide from biogas produced as an alternative energy source in livestock farms. The adsorbent materials tested were concrete pellets, steel wool, wood chips and diatomite. The efficiency of the adsorbent was compared with the adsorbent that has been improved by coating with ferric hydroxide to study the removal of hydrogen sulfide in biogas. The tests were performed by loading the adsorbent in a fixed bed adsorption column with a diameter of 10.16 cm and a length of 50 cm, allowing biogas to flow through by 15-20 liters per minute (900-1,200 liters/hour). The results showed that the ferric hydroxide-coated concrete pellets packed in the column can effectively remove hydrogen sulfide in biogas, with an average removal of 99.18% of hydrogen sulfide before entering the system at an average concentration of 2,551 ppm.</p>
Phimphaka Phothilangka
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/260921
Tue, 10 Jun 2025 00:00:00 +0700
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ANTIBACTERIAL PROPERTIES BIOFILM FORMATION INHIBITION AND CHEMICAL PROFILING OF AMPELOCISSUS ARACHNOIDEA
https://ph01.tci-thaijo.org/index.php/psru/article/view/260172
<p>This research aimed to analyze the chemical composition and evaluate the biological activities of wild grape leaves and stems extracted with ethanol. Chemical composition was determined using Gas Chromatography-Mass Spectrometry (GC-MS), revealing that the primary compounds in leaves and stems were plant sterols, notably g-Sitosterol, and other related compounds. Furthermore, the extracts were tested against five pathogenic bacterial strains: <em>Escherichia coli</em> SK005, <em>Pseudomonas aeruginosa</em> SK002, <em>Klebsiella pneumoniae</em> SK001, <em>Staphylococcus aureus</em> SK004, and <em>Streptococcus pyogenes</em> SPV01, using the disc diffusion assay. The results showed that the wild grape extracts inhibited the growth of all tested bacterial strains, with inhibition zone diameters ranging from 7.40±0.11 to 18.94±0.35 mm. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values were determined between 3.13 and 50.00 mg/mL. Additionally, the extracts exhibited biofilm inhibition activity against <em>S. pyogenes</em>, reaching up to 79.54%.</p>
Sirimaporn Watcharakul, Saijai Wattanasen, Wipapan Kongyen
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/260172
Tue, 10 Jun 2025 00:00:00 +0700
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APPLICATION OF INDIGENOUS HERBAL EXTRACTS TO CONTROL ASPERGILLUS FLAVUS THE AFLATOXIN-PRODUCING FUNGUS IN PEANUTS
https://ph01.tci-thaijo.org/index.php/psru/article/view/261945
<p>This study focuses on the use of indigenous herbs from Sisaket province, namely garlic (<em>Allium sativum</em>) and shallot (<em>Allium ascalonicum</em>), to evaluate their efficacy in inhibiting the growth of Aspergillus flavus, a fungal species responsible for aflatoxin contamination in peanuts. Herbal extracts were prepared at concentrations of 5% and 10% and incorporated into PDA culture medium. The experimental design followed a completely randomized design (CRD) with three replications per treatment. Fungal colony diameters were measured on days 3, 5, and 7 after-inoculation, and the inhibition percentages were calculated accordingly. The results demonstrated that the 10% garlic extract exhibited the highest antifungal activity, reducing the average colony diameter to 1.75 ± 0.71 cm with an inhibition rate of 52.55%. This was followed by shallot 10%, garlic 5%, and shallot 5% treatments, respectively. Statistical analysis confirmed significant differences among treatments (p ≤ 0.05), indicating a concentration-dependent antifungal effect. The biological activity of the herbal extracts is likely attributed to their organosulfur compounds and volatile oils naturally found in garlic and shallots. These findings suggest that local herbal extracts, particularly 10% garlic extract, offer a promising and eco-friendly alternative for mitigating aflatoxin contamination in peanuts. This approach supports sustainable agriculture, reduces dependency on synthetic fungicides, and aligns with food safety and public health standards.</p>
Wimonsiri Sehawong, Suvichark Aroonluk, Sayan Subepang
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/261945
Thu, 19 Jun 2025 00:00:00 +0700
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EFFECT OF GAC FRUIT PULP POWDER SUPPLEMENTATION ON THE QUALITY OF THAI CUSTARD DESSERT
https://ph01.tci-thaijo.org/index.php/psru/article/view/261935
<p>This study aimed to investigate the chemical and physical properties, as well as the antioxidant activity, of gac fruit pulp powder—a by-product obtained from the processing of food and health-related products. Furthermore, the effects of gac fruit pulp powder supplementation into a Thai custard dessert (Khanom Mo Kaeng) were evaluated in terms of consumer acceptability and product safety. The gac fruit pulp powder exhibited a reddish-yellow color, with carbohydrates as the predominant chemical component. It contained a total phenolic content of 3,307.17 mg gallic acid equivalents (GAE) per 1,000 g sample (DW) and demonstrated DPPH radical scavenging activity of 36.77 mg Trolox equivalent antioxidant capacity (TEAC) per 1,000 g sample (DW). The supplementation of gac fruit pulp powder in Thai custard dessert at concentrations of 2, 4, and 6% resulted in decreased lightness (L*) values, while redness (a*) and yellowness (b*) values increased. In parallel, both total phenolic content and DPPH antioxidant activity showed a significant increasing trend (p ≤ 0.05). The sample containing 4% gac fruit pulp powder received sensory evaluation scores ranging from 7.27 to 7.63 across all attributes, indicating a moderate level of consumer acceptability. The chemical composition of this formulation consisted of 49.85% moisture, 14.11% protein, 9.33% fat, 2.43% ash, 3.72% dietary fiber, and 20.56% carbohydrates. In addition, the microbiological quality of the product met the standards specified in the Thai Community Product Standards for traditional Thai desserts. All tested parameters—including total viable count, yeast and mold, <em>Salmonella spp.</em>, <em>Staphylococcus aureus</em>, <em>Bacillus cereus</em>, and <em>Escherichia coli</em>—were within acceptable safety limits.</p>
Phaiwan Pramai, Arunluk Chodnakarin, Susitra Singsom , Pakawadee Phuchan
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/261935
Thu, 19 Jun 2025 00:00:00 +0700
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FACTORS ASSOCIATED WITH HOUSING SAFETY AMONG ELDERLY PEOPLE IN UBON RATCHATHANI PROVINCE
https://ph01.tci-thaijo.org/index.php/psru/article/view/262042
<p>This descriptive cross-sectional study aimed to investigate the factors associated with residential safety among elderly people in Ubon Ratchathani Province. The sample consisted of 34 elderly individuals selected using Multistage Sampling. A structured questionnaire was used to assess knowledge, attitudes, and self-protective behaviors related to residential safety. Data were analyzed using descriptive statistics, Pearson’s Chi-square test, and Pearson’s correlation. The results indicated that most participants were female (88.2%) with a mean age of 74.6 years. The majority demonstrated low levels of safety knowledge (64.7%), while their attitudes and protective behaviors were at a moderate level (58.8% and 82.4%, respectively). Significant factors associated with self-protective behavior included cohabitation (p = 0.050) and past residential injuries (p = 0.049). Knowledge showed a significant correlation with protective behavior (p ≤ 0.05), but not with attitudes (p >0.05). Conclusion: The findings emphasize the need to enhance knowledge and improve residential environments to effectively promote safety behaviors among the elderly in a sustainable manner.</p> <p> </p>
Chaiyakrit Yokphonchanachai, Yanitha Paengprakhon, Jaruporn Duangsri, Wilawan Chada , Penmas Sukontajit
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/262042
Thu, 19 Jun 2025 00:00:00 +0700
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THE DEVELOPMENT OF EXERCISE PROGRAM WITH FAMILY INVOLVEMENT ON SELF STIMULATING BEHAVIOR OF STUDENT WITH AUTISTIC
https://ph01.tci-thaijo.org/index.php/psru/article/view/261658
<p>This study aimed to (1) develop an exercise program with family participation to reduce self-stimulatory behaviors in children with autism, and (2) evaluate the effects of the program after implementation. The sample consisted of 46 parents of children with autism. The instruments used in this research were: (1) a parent satisfaction questionnaire, and (2) a structured behavioral observation form. Descriptive statistics including frequency, percentage, and mean were used, along with inferential statistics such as independent samples t-test and one-way ANOVA. Results showed high parental satisfaction and a notable reduction in self-stimulatory behaviors in children after participation. Families reported ease in applying the program at home. No significant difference in satisfaction was found between male and female parents, but a significant difference was found among different age groups. The study recommends improving clarity of the program and developing user-friendly materials to support long-term behavioral outcomes.</p>
Sasima Laemdeeklam, Kitikorn Pornma, Chutima Sriyeethong, Warisara Pongthong, Kanthika Lertsuwan, Aunthika Khemake
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/261658
Thu, 19 Jun 2025 00:00:00 +0700
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PHYTOCHEMICAL SCREENING AND ANTIOXIDANT ACTIVITIES OF TANEE BANANA BLOSSOM TEA (MUSA BALBISIANA COLLA) IN CHET SAMIAN, PHOTHARAM, RATCHABURI
https://ph01.tci-thaijo.org/index.php/psru/article/view/261966
<p>The aims of this study were to determine phytochemical and antioxidant activities of blossom tea (<em>Musa balbisiana</em> Colla) selected from Chet Samian subdistrict, Photharam district, Ratchaburi province for the development of banana blossom tea. Extracts were prepared as tea infusions brewed for 1 and 3 minutes. The results revealed the presence of phytochemicals considered such as tannin, saponin, alkaloid, terpenoid, cardiac glycoside and phlobatannin. In addition, it was found that Tanee banana blossom tea at 3 min extract exhibited the highest total phenolic content and total flavonoid content (10.84±0.20 mg GAE/g extract and 2.25±0.04 mg CE/mg extract, respectively). And also showed highest DPPH and ABTS radical scavenging capacities (IC<sub>50</sub> values of 5.92± 0.09 mg/mL and 22.71 ± 0.47 mg/mL, respectively). There was a statistically significant difference with <em>p</em> ≤ 0.05. Tanee banana blossom tea at 3 min were low in Calories (1.81 Kcal/100g) and Sugar (<0.50 g/100 g). According to these results, it could be concluded that banana blossom tea at 3 min extract had great biological activities which could be applied for product development from dried banana blossom.</p> <p> </p>
Wipawee Chanthasri
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/261966
Fri, 27 Jun 2025 00:00:00 +0700
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THE DEVELOPMENT OF HACKING BASKET TORENIA BY USED INTERSPECIFIC CROSSES BETWEEN COMMERCIAL TORENIA AND TORENIA HIRSUTISSIMA, A WILD SPECIES OF THAILAND
https://ph01.tci-thaijo.org/index.php/psru/article/view/261952
<p>Pollen viability was found only in Mon Thian Thong (<em>T. hirsutissima</em>) and Summer Wave Large Amethyst with 33.25 % and 18.75 % pollen viability, respectively. Whereas non-viable pollen was found in Yellow Moon, Summer Wave Blue, and Summer Wave Amethyst cultivars. The study of pollen germination on synthetic media with 10% sucrose found that only Mon Thian Thong and Summer Wave Large Amethyst cultivars showed 25.25% and 5.75% pollen germination, respectively. The interspecific hybridization, <em>T.</em> ‘Summer Wave Large Amethyst’ × <em>T. hirsutissima</em>, found 6.66% pod setting and only 8.5 ovules per pod, where only 12% were developed in the plantlets. In other hybrids, meanwhile, could not produce pods from hybridization. Comparison of flower morphology revealed that the hybrids exhibited flower color characteristics of both parents. The disorganized arrangement of epidermal cells could be inherited from the parent to the hybrids. Additionally, the Mon Thian Thong cultivar exhibited the highest number of stomata per area, at 5.62 stomata per 10,000 square micrometers, followed by hybrid no.1 and hybrid no. 2. Whereas the Summer Wave Large Amethyst cultivar exhibited the least number of stomata per area, at 2.87 stomata per 10,000 square micrometers. All hybrids are true triploid hybrids, which are from a tetraploid (Summer Wave Large Amethyst) and a diploid (Mon Thian Thong).</p>
Tanapoom Laojunta, Sutjaritpan Boonmee
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/261952
Tue, 24 Jun 2025 00:00:00 +0700
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A STUDY OF GUIDELINES FOR PROMOTING THE USE OF HANUMAN PRASAN KAI HERB TO SUPPLEMENT THE TREATMENT OF ASTHMA PATIENTS IN THE COMMUNITY
https://ph01.tci-thaijo.org/index.php/psru/article/view/262263
<p>This article is a mixed-method research study with the following objectives: 1) to compare the total phenolic content and antioxidant activity in fresh and dried Hanuman Prasan Kai leaves, using t-test statistical analysis, and 2) to study guidelines for promoting the use of Hanuman Prasan Kai herb to supplement asthma treatment in the community. Descriptive statistics were employed through content analysis. The results are divided into two parts: 1) The results of the total phenolic content analysis of fresh Hanuman Prasan Kai leaves (42.77 ± 1.63 mg GAE/g extract) and dried leaves (38.37 ± 4.18 mg GAE/g extract), and the antioxidant activity testing in fresh Hanuman Prasan Kai leaves (IC<sub>50</sub> = 423.18 ± 15.73 µg/mL) and dried leaves (IC<sub>50</sub> = 456.37 ± 27.52 µg/mL) showed comparable values. 2) The guidelines for promoting the use of Hanuman Prasan Kai herb to supplement asthma treatment in the community consist of three parts: <br />1) knowledge and understanding about Hanuman Prasan Kai herb, 2) promoting knowledge on cultivating Hanuman Prasan Kai herb in the community, and 3) promoting knowledge on using either fresh or dried leaves of Hanuman Prasan Kai to support asthma treatment in the community.</p>
Pornnipa Sitthisradoo, Paripach Ngoenngam, Thitirat Chaichana, Wanisa Punfa , Somruethai Yangwan
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/262263
Tue, 24 Jun 2025 00:00:00 +0700
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A STUDY OF LOCAL AGRICULTURAL MATERIALS AS ALTERNATIVES TO RUBBER TREE SAWDUST FOR MUSHROOM SPAWN SUBSTRATE PRODUCTION
https://ph01.tci-thaijo.org/index.php/psru/article/view/262080
<p>This research aimed to evaluate the potential of local agricultural materials for use in mushroom spawn block production. The study was conducted in three phases. First, the components of mushroom spawn blocks and available agricultural materials were explored through in-depth interviews with community enterprise leaders, group representatives, and agricultural product buyers in the study area. Second, the selection of suitable agricultural materials to replace rubber tree sawdust was carried out using <br />a Multiple-Criteria Decision Analysis (MCDA) approach. Third, the proportions of the selected agricultural materials were analyzed through proximate analysis to assess their feasibility for spawn block formulation. The results revealed that rubber tree sawdust is the primary component currently used in spawn block production. Local agricultural materials found in the study area included rice husk, rice straw, corn cobs, and sugarcane filter cake. Among these, rice husk and rice straw were identified as the most suitable for partial replacement of rubber tree sawdust. The optimal formulation was 80% rubber tree sawdust and 20% rice husk, which demonstrated a promising potential for practical application in mushroom cultivation.</p>
Karun Phungbunhan, Nuttakorn Intaravicha
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/262080
Mon, 24 Jun 2024 00:00:00 +0700
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BACTERIA INOCULUM SCREENING FROM PALM WINE TO IMPROVE THE FERMENTATION EFFICIENCY OF VINEGAR
https://ph01.tci-thaijo.org/index.php/psru/article/view/261171
<p>Bacteria found in spontaneously fermented palm wine derived from fresh sugar sap can undergo further fermentation to yield vinegar. Therefore, this research aims to isolate the inoculums from palm wine to increase the efficiency of vinegar fermentation to obtain more acid. A total of 20 isolates cultured on glucose yeast extract calcium carbonate agar medium were isolated from palm wine fermented for 30 days. The efficiency of the acid production was screened by the difference between the diameter of the colony and the clear zone on the medium. The morphological and biochemical properties were studied. It was found that the five isolates that had the widest clear zones were Ssv.14, Ssv.13, Ssv.17, Ssv.8, and Ssv.20, respectively. All isolates showed the similar basic characteristics of bacteria of the <em>Acetobacter</em> and <em>Gluconobacter</em> bacteria. These isolates were investigated for the potential to be vinegar inoculum based on the ability of acid production. The amount of acid was evaluated by titration of the cultures grown in the glucose ethanol yeast extract broth with 5% ethanol under aerobic conditions at room temperature for 30 days. It was found that the mixed inoculum of five isolates showed the most acidity (15.3±0.46% w/v), which was higher than the natural inoculum, palm wine (8.76±2.33% w/v), and distilled vinegar (5.00±0.54% w/v) with statistically significant (<em>p</em> ≤ 0.05), respectively. While the pure inoculum from each isolate produced acid in the range 0.06±0.08% w/v - 0.13±0.04% w/v. The mixed inoculum showed a pH value of 3, and the natural inoculum and the distilled vinegar gave a pH of 4. The pure inoculums gave a pH of 8. Therefore, the use of a selectively mixed inoculum with efficient acid production may be another approach that could enhance the production of vinegar in the future.</p>
Nisakorn Witthajitsomboon, Kanyarat Wissapan, Thanaporn Tawornchit, Wipawan Wongsudalak
Copyright (c) 2025 Life Sciences and Environment Journal
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/261171
Fri, 27 Jun 2025 00:00:00 +0700
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Editorial Note
https://ph01.tci-thaijo.org/index.php/psru/article/view/262752
<p>วารสาร Life Sciences and Environment Journal ซึ่งเป็นวารสารวิชาการที่อยู่ในฐานข้อมูลการตีพิมพ์การอ้างอิงของวารสารระดับประเทศในกลุ่มอาเซียน (ASEAN Citation Index: ACI) และฐานข้อมูลระดับชาติที่ได้รับการรับรองคุณภาพจากศูนย์ดัชนีการอ้างอิงวารสารไทย (Thai Journal Citation Index: TCI) รอบที่ 5 (2565-2572) เป็นวารสารกลุ่ม 1</p> <p>วารสาร Life Sciences and Environment Journal ปีที่ 26 ฉบับที่ 1 (ประจำเดือนมกราคม - มิถุนายน 2568) ได้พิจารณาคัดเลือกผลงานที่มีคุณภาพ ครอบคลุมสาขาด้านวิทยาศาสตร์การเกษตรและวิทยาศาสตร์ชีวภาพ ด้านวิทยาศาสตร์สิ่งแวดล้อม ด้านวิทยาศาสตร์สุขภาพ และด้านสหวิทยาการทางด้านวิทยาศาสตร์ จำนวนทั้งสิ้น 15 บทความ ซึ่งผ่านการประเมินโดยผู้ทรงคุณวุฒิพิจารณาคุณภาพบทความ (Peer Review) ซึ่งเป็นผู้ทรงคุณวุฒิภายนอกจากหลากหลายสถาบัน จำนวน 3 ท่าน จึงทำให้แต่ละบทความล้วนมีคุณค่าทางวิชาการ และสามารถนำไปใช้เป็นเอกสารอ้างอิงเพื่อการผลิตผลงาน<br>ทางวิชาการได้</p> <p>กองบรรณาธิการและคณะกรรมการจัดทำวารสารฯ มหาวิทยาลัยราชภัฏพิบูลสงคราม ขอขอบคุณผู้ทรงคุณวุฒิพิจารณาคุณภาพบทความ ตลอดจนผู้อ่านและผู้สนใจทุกท่านที่ติดตามผลงานที่ตีพิมพ์ในวารสาร นำผลงานไปอ้างอิงหรือส่งต้นฉบับเพื่อตีพิมพ์ในวารสารนี้ กองบรรณาธิการหวังเป็นอย่างยิ่งว่าจะได้รับเกียรติและความอนุเคราะห์จากท่านในโอกาสต่อไป</p>
Namthip Wongpratheep
Copyright (c) 2025
https://creativecommons.org/licenses/by-nc-nd/4.0
https://ph01.tci-thaijo.org/index.php/psru/article/view/262752
Thu, 26 Jun 2025 00:00:00 +0700