Journal of Agriculture and Food Research最新文献

{"title":"Does quality matter? Examining the influence of product quality and source on Japanese beef imports","authors":"Christina G. Slater ,&nbsp;Andrew Muhammad ,&nbsp;Karen L. DeLong","doi":"10.1016/j.jafr.2025.101857","DOIUrl":"10.1016/j.jafr.2025.101857","url":null,"abstract":"<div><div>Product quality is essential, as it influences consumer preferences and, hence, affects imports. In this study, we employed a demand system framework to estimate source-differentiated beef demand in Japan. Additionally, we evaluated whether the quality attributes of chilled versus frozen beef were significant in explaining trade flows. Using quarterly trade data, we estimated Japanese beef demand by exporting source (e.g., Australia, U.S.) and product quality (chilled and frozen). We used different models based on assumptions about quality (unrestricted, quality aggregated, and quality separability) and compared the demand estimates and resulting elasticities across models. The importance of quality was also verified by separability and aggregation likelihood-ratio tests.</div><div>Results indicate that quality matters. In fact, likelihood-ratio tests indicate that preferences for chilled and frozen beef may even be independent. That is, the demand for chilled beef imports could be estimated separately from frozen beef imports. However, resulting elasticity estimates did not significantly differ when quality attributes were considered, except for U.S. chilled beef where the own-price elasticity was statistically different between the unrestricted model (−0.4) and quality-aggregated model (−1.2). However, we found no significant difference between the elasticities from the quality-separability and quality-aggregated models regardless of source. Results provide insights into Japanese beef import demand, which is important considering Japan is the third largest beef importer in the world.</div></div>","PeriodicalId":34393,"journal":{"name":"Journal of Agriculture and Food Research","volume":"21 ","pages":"Article 101857"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feed-grade hempseed as alternative protein source in organic broilers diet: Growth performance, carcass characteristics and meat quality","authors":"Francesco Serrapica ,&nbsp;Claudia Lambiase ,&nbsp;Felicia Masucci ,&nbsp;Ada Braghieri ,&nbsp;Jose Manuel Lorenzo ,&nbsp;Antonio Di Francia","doi":"10.1016/j.jafr.2025.101860","DOIUrl":"10.1016/j.jafr.2025.101860","url":null,"abstract":"<div><div>This study investigated the feasibility of integrating feed-grade hempseed (FG-HS), an emerging by-product of the oil industry, into organic poultry production, focusing on its impact on growth performance, slaughter yield, and quality traits of meat in medium-growing chickens. Soybean expeller cake (SBE) was used for comparison. One hundred and twenty 21-day-old chickens were assigned to three dietary groups, each consisting of two replicates of twenty chickens. Treatments included a control diet containing 30 % SBE and two experimental diets with FG-HS replacing SBE at 50 % (H15) or 100 % (H30). Trial lasted 14 weeks. At the end of the experimental period, birds were sacrificed for carcass evaluation, including welfare-related traits. Rheological, nutritional, and sensory properties of breast meat were also evaluated. Birds fed the H30 diet showed a trend toward lower incidence of footpad dermatitis (<em>P</em> = 0.06), cleaner plumage (<em>P</em> &lt; 0.03), higher final live weight (<em>P</em> &lt; 0.05), and heavier viscera (<em>P</em> &lt; 0.05) compared to the SBE and H15 groups. No effects of diet were found for eviscerated carcass weights, commercial cut yield or meat quality traits such as composition, amino acid profile, water holding capacity, and Warner-Bratzler shear force. Notably, FG-HS inclusion significantly reduced saturated fatty acid levels (<em>P</em> &lt; 0.001 and <em>P</em> &lt; 0.05 for H30 and H15 diets, respectively), while increasing polyunsaturated fatty acids (<em>P</em> &lt; 0.01 and <em>P</em> &lt; 0.05). The H30 diet enhanced overall flavor intensity (<em>P</em> &lt; 0.01) and significantly reduced (<em>P</em> &lt; 0.01) fibrousness, gumminess, and mouth residue. Results suggest that FG-HS can be successfully integrated into broiler diets at inclusion rates up to 30 % without compromising bird growth performance, carcass and meat traits. Moreover, FG-HS at the highest inclusion level shows potential for enhancing breast meat quality in terms of fatty acid profile and sensory characteristics.</div></div>","PeriodicalId":34393,"journal":{"name":"Journal of Agriculture and Food Research","volume":"21 ","pages":"Article 101860"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revolutionising broiler nutrition: The role of probiotics, fermented products, and paraprobiotics in functional feeds","authors":"Harsh Kumar ,&nbsp;Indu Bhardwaj ,&nbsp;Eugenie Nepovimova ,&nbsp;Daljeet Singh Dhanjal ,&nbsp;Sumayya Sana Shaikh ,&nbsp;Renáta Knop ,&nbsp;David Atuahene ,&nbsp;Ayaz Mukarram Shaikh ,&nbsp;Kovács Béla","doi":"10.1016/j.jafr.2025.101859","DOIUrl":"10.1016/j.jafr.2025.101859","url":null,"abstract":"<div><div>Advancements in nutrition, inheritance, housing management, and research on chicken well-being and welfare have driven growth in poultry production. However, the unregulated use of antibiotic growth promoters has led to antibiotic resistance and drug residues, prompting several nations, including European Union members, to ban antibiotics in animal feed. Researchers have focused on safe alternatives such as probiotics, fermented probiotics products, and paraprobiotics. Therefore, nowadays normal diet is supplemented with probiotics that act as an immunomodulator which effectively sustains the healthy microbiota, regulate different blood parameters and enhances meat quality. Moreover, the feeding of probiotics-fermented plant-based food with basal diet provides a double benefit to chicken health as it gets the benefits from probiotics as well as dietary polyphenols. Finally, the addition of paraprobiotics increases the overall gut immunity in the broiler chickens.</div></div>","PeriodicalId":34393,"journal":{"name":"Journal of Agriculture and Food Research","volume":"21 ","pages":"Article 101859"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proteomic profiling of pig placenta reveals key biomarkers linked to sow reproductive performance","authors":"Phurt Harnvoravongchai ,&nbsp;Matthew Phanchana ,&nbsp;Nutthida Pholmanee ,&nbsp;Boonyarut Ladda ,&nbsp;Thanyapit Thita ,&nbsp;Puey Ounjai ,&nbsp;Sittiruk Roytrakul ,&nbsp;Tavan Janvilisri","doi":"10.1016/j.jafr.2025.101858","DOIUrl":"10.1016/j.jafr.2025.101858","url":null,"abstract":"<div><div>Reproductive performance is a key factor in swine farming, yet the molecular mechanisms underlying critical reproductive traits remain poorly understood. This study utilized mass spectrometry-based proteomics to analyze protein expression profiles in pig placenta, categorizing samples by sow age, parity, and stillbirth incidence. A total of 8261 proteins were identified, with gene ontology analysis highlighting roles in proteolysis, transcriptional regulation, and immune response. Comparative analysis revealed 87 differentially expressed proteins (DEPs) between young and old sows, 115 DEPs between low and high parity sows, and 103 DEPs linked to stillbirth incidence. Notable proteins, such as laminin G2, methionine sulfoxide reductase B3, and FERM domain-containing 7, were significantly correlated with reproductive traits. Integrative analysis identified YEATS domain-containing 4 as a consistently downregulated protein across all traits, while nephrocystin 1 was linked to low birth weight and stillbirth incidence. Functional enrichment analysis underscored the role of cytoskeletal proteins and transporters in placental nutrient exchange and fetal development. This study expands the understanding of pig placental proteomics and identifies potential biomarkers for improving sow reproductive performance. Future studies will focus on validating these findings and translating them into practical applications for breeding selection and reproductive management in swine production.</div></div>","PeriodicalId":34393,"journal":{"name":"Journal of Agriculture and Food Research","volume":"21 ","pages":"Article 101858"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Volatile composition and antimicrobial properties of ground spices: Investigating the correlation using Principal Component Analysis","authors":"Andi Nur Fajri Suloi ,&nbsp;Andri Suwanto ,&nbsp;Muslih Anwar ,&nbsp;Ria Suryani ,&nbsp;Muspirah Djalal ,&nbsp;Februadi Bastian ,&nbsp;Andi Dirpan ,&nbsp;Nur Alim Bahmid","doi":"10.1016/j.jafr.2025.101849","DOIUrl":"10.1016/j.jafr.2025.101849","url":null,"abstract":"<div><div>This study aimed to investigate the correlation between main detected volatile compounds and minimum inhibitory concentrations (MIC), which was further analyzed using principal component analysis (PCA). This is among the first studies to systematically link volatile compounds in ground spices to antimicrobial efficacy using PCA. The volatile components of various ground spices, including clove buds (<em>Syzygium aromaticum</em>), fennel seeds (<em>Foeniculum vulgare</em>), cumin (<em>Cuminum cyminum</em>), coriander (<em>Coriandrum sativum</em>), cardamom (<em>Elettaria cardamomum</em>), white pepper (<em>Piper Nigrum</em>), and cinnamon (<em>Cinnamomum verum</em>) were detected by GC-MS. Their antibacterial effects against selected pathogenic bacteria <em>Escherichia coli</em>, <em>Staphylococcus aureus,</em> and <em>Bacillus subtilis</em> were analyzed using a well-diffusion method to determine MIC. The results showed that 133 constituents were identified in those seven ground spices. The main identified volatile compounds were 1,8-cineole (80.86 %) in ground cardamom, while eugenol (61.64 %) was mainly found in ground clove buds. Furthermore, the major volatile compounds identified in ground fennel seeds, cinnamon, cumin, coriander, and white pepper were D-limonene (40.71 %), 1,8-cineole (28.52 %), β-pinene (30.39 %), 3-carene (36.66 %), and (+)-3-carene (37.68 %), respectively. Moreover, ground cinnamon and clove buds had the strongest antimicrobial activity against the selected bacteria, with MIC reaching 5 mg/ml, sufficient to inhibit the bacteria. The strong antimicrobial activity was related to the higher components of eugenol and 1,8-cineole identified from both spices. These results recommended the minimum concentration for the ground seeds once applied for antimicrobial food packaging to have better effectiveness in bacterial inhibition.</div></div>","PeriodicalId":34393,"journal":{"name":"Journal of Agriculture and Food Research","volume":"21 ","pages":"Article 101849"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical and physical parameters supporting the top-rated product of Kapi-pla, a gastronomy of southern food, Thailand","authors":"Sunisa Siripongvutikorn,&nbsp;Kanyamanee Pumethakul,&nbsp;Jinattita thantrirat,&nbsp;Nualpun Sirinupong,&nbsp;Worrapanit Chansuwan,&nbsp;Worapong Usawakesmanee,&nbsp;Chanonkarn Rujirapong","doi":"10.1016/j.jafr.2025.101856","DOIUrl":"10.1016/j.jafr.2025.101856","url":null,"abstract":"<div><div><strong>“</strong>The Lost Taste Project”, Kapi-pla, fermented fish from Pak Phanang (Nakhon Si Thammarat) was declared the product champion based on committee judgment and popular vote without scientific information record even though it is regularly consumed in the south of Thailand. This present work aims to disclose the traditional process and indicate typical characteristics of Kapi-pla for preparing standard regulation and supporting next approval projects like southern gastro-democracy shortly. An insight interview indicated that each producer used his or her own ancestors’ guidelines and available fish following zero waste concept. Interestingly, the process requires a specific range of fish quality, namely soft texture and swollen sign before use. Kapi-pla showed a brown-gray of thick-clump texture with bone, spine and scale of the used fish. Amino acids composition profile determined by HPLC were classified as bitter-salty-sour (umami), sulphurous, bitter-salty-sweet, sweet-bitter and sweet taste while fatty acids profile analyzed by GC were palmitic acid, stearic acid, oleic acid and palmitoleic acid which were linked to taste sensation of Kapi-pla from each area. Results indicated that Kapi-pla from brackish-marine water fish (B-MF) (Pak Phanang, Nakhon Si Thammarat) seemed to contain more sweet amino acids including glycine, lower or even the lowest undesired taste as threonine and lysine, and less allergic precursor (histidine). In addition, it contained higher desired fatty acid composition (EPA and DHA) in comparison to others. Chemical and physical parameters obtained from this experiment were the first documentation supporting and relating to public consumer tests. All scientific parameters are proceeding to use for Kapi-pla standard regulation issued by Thai FDA later. Additionally, Thai government has been selected and appointed Kapi-pla as one of southern gastro-democracy items and planned to create several <em>de novo</em> menus using either alone or as an ingredient in other menus for welcome visitors and exported products further.</div></div>","PeriodicalId":34393,"journal":{"name":"Journal of Agriculture and Food Research","volume":"21 ","pages":"Article 101856"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antibacterial potential of cell-free supernatants from Liquorilactobacillus nagelii and Lactococcus garvieae isolated from the gastrointestinal tract of Asian green mussel (Perna viridis) against foodborne pathogenic and spoilage bacteria","authors":"Jyoti Kumari ,&nbsp;Avtar Singh ,&nbsp;Nuntiya Pahumunto ,&nbsp;Soottawat Benjakul ,&nbsp;Jirayu Buatong","doi":"10.1016/j.jafr.2025.101855","DOIUrl":"10.1016/j.jafr.2025.101855","url":null,"abstract":"<div><div>This study investigated the antibacterial activity of cell-free supernatants (CFS) from 33 lactic acid bacteria (LAB) isolated from the gastrointestinal (GI) tract of Asian green mussel (<em>Perna viridis</em>) against <em>Vibrio parahaemolyticus</em>, <em>Staphylococcus aureus</em>, <em>Pseudomonas aeruginosa</em> and <em>Shewanella putrefaciens</em> using the agar well diffusion method. Out of 33 isolates, three (9.1 % of the total; MG1, MG2 and MG5) exhibited strong activity against <em>V. parahaemolyticus</em>, with an inhibition zone in the range of 10.00–13.20 mm. The freeze-dried CFS of strains MG1, MG2 and MG5 exhibited inhibitory effects against <em>V. parahaemolyticus</em>, with minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values ranging from 4 to 16 mg/mL, 8–16 mg/mL and 8–64 mg/mL, respectively. Scanning electron microscopic images of <em>V. parahaemolyticus</em> cells treated with freeze-dried CFS of strains MG1, MG2 and MG5 at 4 × MIC showed cell damage as indicated by pore formation on the cell surface along with the absence of flagella, potentially caused by a synergistic effect of the major bioactive components in LAB supernatant. Freeze-dried CFS of strain MG2 at MIC (8 mg/mL) was most effective at inhibiting motility (swimming and swarming) and biofilm formation of <em>V. parahaemolyticus</em>, with 100 % and 98.5 % inhibition, respectively. Based on MALDI-TOF MS and the 16s rRNA gene sequence, strains MG1 and MG2 were identified as <em>Liquorilactobacillus nagelii</em>, while strain MG5 was identified as <em>Lactococcus garvieae</em>. Analysis of freeze-dried CFS from strain MG2 using LC-Q-TOF-MS revealed that 3b,6a-dihydroxy-alpha-ionol 9-[apiosyl-(1-&gt;6)-glucoside] and citric acid were the major components detected in positive and negative mode, respectively. This is the first report of strong antibacterial activity exhibited by antimicrobial agents from <em>L. nagelii</em> isolated from Asian green mussels. These findings suggest that antimicrobial agents derived from LAB in Asian green mussels may serve as potential biocontrol strategies for managing foodborne pathogens and spoilage bacteria.</div></div>","PeriodicalId":34393,"journal":{"name":"Journal of Agriculture and Food Research","volume":"21 ","pages":"Article 101855"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of key challenges to implementation of FEFO in perishable food supply chain","authors":"Jayakrishna Kandasamy ,&nbsp;K.E.K. Vimal ,&nbsp;Aditya Pratap Singh ,&nbsp;Aaryan Magnani ,&nbsp;Ameya Gokhale ,&nbsp;Sandeep Jagtap","doi":"10.1016/j.jafr.2025.101848","DOIUrl":"10.1016/j.jafr.2025.101848","url":null,"abstract":"<div><div>Implementing FEFO practices has become essential for organizations globally to minimize spoilage, enhance inventory turnover, and ensure compliance with health and safety standards. To aid stakeholders in effectively adopting FEFO, it is crucial to identify and address the challenges involved in its implementation. Through an extensive literature review using the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) methodology and insights from industry experts, this study identifies thirteen core challenges that hinder FEFO adoption. PRISMA methodology was used to systematically organize the existing literature for the purpose of this study. Using tools like Decision Making Trial and Evaluation Laboratory (DEMATEL) and Total Interpretive Structural Modelling (TISM), the challenges were examined and ranked according to their interdependencies, providing insights into the cause-effect relationships among them. After applying DEMATEL, an alpha threshold value of 0.368 revealed that challenges in effective storage management are the primary barrier in implementing FEFO practices. With level partitioning, this challenge emerged as the most significant, forming the foundation for a roadmap designed to assist stakeholders. The findings from this study offer managers actionable insights for implementing effective FEFO techniques within their organizations. The study's novelty lies in its combination of DEMATEL and TISM methodologies, along with a roadmap that highlights strategic and policy-focused recommendations to support efficient FEFO adoption and the systematic study of challenges preventing effective FEFO adoption. This paper aids implementation of FEFO for better inventory control and management, reduced wastage and greater efficiency. The paper also effectively outlines and analyses the order of importance of challenges in FEFO implementation and their interdependence.</div></div>","PeriodicalId":34393,"journal":{"name":"Journal of Agriculture and Food Research","volume":"21 ","pages":"Article 101848"},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating soda-lime adsorption and microcontroller-based system for the dynamic control of CO2 in a fresh produce storage box under varying temperature","authors":"Yogesh B. Kalnar ,&nbsp;Akshay D. Sonawane ,&nbsp;Cornelia Weltzien ,&nbsp;Pramod V. Mahajan","doi":"10.1016/j.jafr.2025.101852","DOIUrl":"10.1016/j.jafr.2025.101852","url":null,"abstract":"<div><div>Effective storage of fresh produce requires precise control of temperature, O₂, CO₂, and relative humidity. The storage system with an air exchange to control O₂ has already been developed. In this study, a soda-lime reactor was introduced into the developed storage system for CO₂ control. Initially, the kinetics of CO₂ adsorption by soda-lime was studied at different temperatures (5, 10 and 20 °C) and relative humidity (&gt;85 %). Then, the new system was integrated into a storage box containing 16 kg of broccoli and the performance evaluation was conducted under varying temperatures from 5 to 23 °C over a 120-h storage period. The analysis of soda-lime adsorption using the Weibull function showed an adsorption capacity of 267 L kg⁻¹. Adsorption was triggered at relative humidity above 80 %, highlighting its suitability for high-humidity conditions in fresh produce storage. While temperature affected the adsorption rate of soda-lime, it did not impact the overall capacity. During the entire storage period, CO₂ and O₂ concentrations inside the box were successfully maintained at 4 ± 2 % and 2 ± 1 %, respectively, even under varying temperatures. This approach highlights the potential of air exchange and soda-lime-based system as an alternative solution for the indirect control of O₂ as well as CO₂, using a simple temperature sensor and mathematical model.</div></div>","PeriodicalId":34393,"journal":{"name":"Journal of Agriculture and Food Research","volume":"21 ","pages":"Article 101852"},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of pre- and post-harvesting techniques on phenolics, antioxidant activities and key enzyme inhibitions of commercially available ready-to-drink teas","authors":"Chanakan Khemthong,&nbsp;Sirinapa Thangsiri,&nbsp;Wimonphan Chathiran,&nbsp;Woorawee Inthachat,&nbsp;Chaowanee Chupeerach,&nbsp;Piya Temviriyanukul,&nbsp;Nattira On–Nom,&nbsp;Warangkana Srichamnong,&nbsp;Uthaiwan Suttisansanee","doi":"10.1016/j.jafr.2025.101853","DOIUrl":"10.1016/j.jafr.2025.101853","url":null,"abstract":"<div><div>Tea, the world's most popular beverage, is prepared using different pre- and post-harvesting techniques, leading to its unique sensory characteristics and bioactive ingredients. However, knowledge about the impact of these processing methods on the phenolic compositions and health properties of commercially available ready-to-drink teas is limited. To fill this research lacuna, the phenolic compositions, antioxidant potentials, and inhibitory activities against the key enzymes relevant to non-communicable diseases including hyperlipidemia (lipase), type II diabetes (α-amylase, α-glucosidase, and dipeptidyl peptidase-IV), and Alzheimer's disease (acetylcholinesterase, butyrylcholinesterase, and β-secretase) of eleven commercially available ready-to-drink teas were investigated. The results indicated that pre-harvest shading led to higher contents of catechin, epicatechin gallate, chlorogenic acid, and 3,4-dihydroxybenzoic acid, while fermentation significantly increased rutin content, which, in turn, led to higher total phenolic contents. Antioxidants in shaded tea tended to follow a hydrogen atom transfer (HAT)-based mechanism, while the single electron transfer (SET)-based mechanism was a preferable reaction pathway for antioxidants in fermented teas. The ability to inhibit key enzymes was more pronounced in fermented teas than in shaded tea, potentially attributed to the biological activities of certain phenolics, either individually or working together as effective inhibitors. The addition of flavors (honey lemon, kyoho grape, watermelon, and roasted rice) led to higher contents of catechins than the original green tea (without added flavor), while the contents of other general phenolics varied, leading to similar or higher TPCs. Antioxidant potentials and enzyme inhibitions varied for different ready-to-drink tea varieties. The knowledge from this research will benefit the development of ready-to-drink teas with particular phenolics and health-related properties.</div></div>","PeriodicalId":34393,"journal":{"name":"Journal of Agriculture and Food Research","volume":"21 ","pages":"Article 101853"},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}