JSFA reports最新文献

{"title":"Genetic variability studies for qualitative and quantitative traits in some recently developed rice varieties of Bangladesh","authors":"Md. Darun Naim, Md. Sohag Parvez, Mosammat Nilufar Yasmin, Md. Robiul Islam","doi":"10.1002/jsf2.70034","DOIUrl":"10.1002/jsf2.70034","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The study aimed to assess six recently developed rice varieties: BRRI dhan84, BRRI dhan89, BRRI dhan92, BRRI dhan99, BRRI dhan100, and BRRI dhan102 of Bangladesh. The primary objectives were to assess genetic variability and key genetic parameters for selected qualitative and quantitative traits, identify, and prioritize promising traits for targeted improvement in rice breeding programs aimed at enhancing quality, productivity, and adaptability in Bangladesh's agriculture. The experiment was conducted using a completely randomized design with three replications. A total of 22 qualitative and quantitative traits were assessed across six varieties. Additionally, the study assessed genetic variability, genotypic coefficient of variation (GCV), phenotypic coefficient of variation (PCV), heritability (h<sup>2</sup>b), genetic advance (GA), and genetic advance as a percentage of the mean (GA%) across multiple traits.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The ANOVA results indicated that the mean squares were very highly significant for most traits among the six rice varieties studied. Grains per panicle exhibited the highest genotypic and phenotypic variances, recorded at 579.88 and 742.85, respectively, while chlorophyll a at 45 days after transplanting showed the lowest values, both recorded at 0.05. Zinc content demonstrated the highest genotypic and phenotypic coefficients of variation (GCV and PCV), recorded at 37.13% and 37.95%, respectively, whereas carbohydrate content showed the lowest, with GCV and PCV values of 2.98% and 3.35%, respectively. Traits such as iron content with 99.84%, amylose content with 98.47%, protein content with 96.54%, zinc content with 95.73%, and thousand-grain weight with 94.29% exhibited minimal environmental influence due to their high heritability estimates (>60%). GA was highest for grains per panicle, with a value of 43.83, followed by filled grains per panicle with 29.15, and zinc content with 12.63. In contrast, the lowest GA was recorded for chlorophyll a at 70 days after transplanting, with a value of 0.29, followed by chlorophyll a at 45 days with 0.43, and chlorophyll b at 70 days with 0.68. High heritability along with high GA as a percentage of the mean (GA%) was observed for several key traits, including iron, protein, and zinc content; thousand-grain weight; chlorophyll a at 45 days after transplanting; total chlorophyll at 45 and 70 days after transplanting; grain, straw, and biological yield; number of grains and filled grains per panicle; and number of productive tillers per hill. These traits are likely governed by additive gene action, indicating strong potential for improvement through simple selection methods. In contrast, traits such as amylose co","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 4","pages":"100-108"},"PeriodicalIF":1.1,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147684131","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":"Sensory, proximate, and microbiological quality evaluation of five commercially important native and imported dry fish in Bangladesh","authors":"Nur Nahar Sohe,&nbsp;Md. Faisal,&nbsp;Nafisa Nawar Tamzi","doi":"10.1002/jsf2.70035","DOIUrl":"10.1002/jsf2.70035","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Dried fish is a popular protein-rich food in Bangladesh, yet its safety and quality vary based on its origin, processing, and storage conditions. This study evaluated the sensory, proximate, and microbiological qualities of five commercially important dry fish available in Bangladeshi markets, including both native (Bangladesh) and imported (Myanmar and India) varieties. Sensory characteristics were assessed using the Quality Index Method, while proximate composition was evaluated following AOAC standards. The microbiological quality was determined using the pour plate method to evaluate total viable cell (TVC) count.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Sensory evaluations revealed dried fish from Bangladesh showed superior color, texture, and appearance compared to imported varieties. Proximate analysis revealed significant variation (<i>p</i> &lt; 0.05) across species, with the highest protein content being recorded in Indian <i>Setipinna taty</i>. Microbiological analysis showed TVC values ranging from 2.53 × 10⁵ to 6.87 × 10⁸ CFU/g across samples, with variability observed among both native and imported products. Pathogenic bacteria, including <i>E. coli</i> and <i>Vibrio</i> spp. were detected in several samples, whereas most samples tested negative for <i>Salmonella</i> and <i>Shigella</i>.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Bangladeshi dried fish generally exhibits favorable sensory attributes; both native and imported dried fish show variable proximate composition and microbiological quality. Strict monitoring of hygiene practices, proper regulations, and improved handling are required to ensure the safety and quality of dried fish for public health. Quality evaluation across major drying yards and supply chains is recommended for safer and more reliable dry fish.</p>\u0000 </section>\u0000 </div>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 4","pages":"109-120"},"PeriodicalIF":1.1,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147684099","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":"Nitrogen rates shaping rice yield and groundwater nitrate in the Jamuna River basin of north central Bangladesh","authors":"Md. Israfil Haq,&nbsp;Nishat Salsabil Khan,&nbsp;Mohammad Golam Kibria,&nbsp;Md Hosenuzzaman,&nbsp;Md. Anwarul Abedin","doi":"10.1002/jsf2.70036","DOIUrl":"10.1002/jsf2.70036","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Understanding how varying nitrogen fertilizer rates influence both rice productivity and groundwater nitrate contamination is critical for ensuring sustainable crop production and environmental protection in the Jamuna River Basin of north-central Bangladesh. Therefore, a field experiment was conducted at Paikortoli, Kajipur, Sirajganj (24.6694° N, 89.6511° E) to quantify nitrate concentrations in urea-amended paddy soils and determine the optimal urea dose for minimizing groundwater contamination while maximizing rice yield. This experiment was laid out in a randomized complete block design (RCBD) with three replications. Our study examined the effects of four treatments: control (no urea), 75%, 100%, and 125% of the recommended fertilizer dose (RFD) on rice growth, yield, nutrient uptake, and nitrate leaching using piezometer-based groundwater monitoring. Uniform management practices were followed across all the experimental plots.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Nitrogen fertilizer application significantly improved growth parameters such as plant height, panicle length, total and effective tillers, and number of filled grains compared to control. The grain and straw yields also showed a significant increase compared to control, with the highest grain (4.76 t/ha) and straw (5.48 t/ha) yields recorded in the 125% RFD treatment, though yields at 75% and 100% RFD were statistically similar. Groundwater nitrate concentration responded significantly to different fertilizer rates and sampling time, remaining the lowest on day 1 and peaking consistently on day 5 after each split application. The highest nitrate concentrations in groundwater reached 6.8, 9.4, and 12.2 ppm following the first, second, and third splits, respectively, with the highest levels always observed under 125% RFD. Elevated urea application rate led to greater nitrate leaching. Despite slightly lower yield than the 125% RFD treatment, the 75% RFD dose showed a significant decrease in nitrate leaching in groundwater without compromising the yield significantly.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Therefore, the findings suggest that excessive nitrogen use accelerates groundwater nitrate contamination in this floodplain ecosystem, while a 75% RFD rate offers an optimal balance between yield performance and the risk of groundwater contamination.</p>\u0000 </section>\u0000 </div>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 4","pages":"121-130"},"PeriodicalIF":1.1,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147684130","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":"Ultrasonic-assisted extraction of bioactive compounds from eggplant (Solanum melongena L.) calyx and evaluation of extract properties","authors":"Neda Parvazi Qomi,&nbsp;Ghazal Labbeiki","doi":"10.1002/jsf2.70038","DOIUrl":"10.1002/jsf2.70038","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Eggplant (<i>Solanum melongena</i> L.) is widely consumed worldwide and generates considerable waste, including peel and calyx, during processing and consumption. Although often considered as by-products, these wastes are rich sources of bioactive compounds, which vary depending on the plant variety and cultivation location. Given that no studies have been reported on the bioactive compounds of the Iranian eggplant calyx, this study examines the extraction of bioactive compounds from the calyx of Iranian purple eggplant using a combined solvent and ultrasonic-assisted extraction method, including the determination of total phenolic and flavonoid contents and antioxidant capacity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The total phenolic content of hydroalcoholic and aqueous extracts was 8.72 ± 0.12 and 7.44 ± 0.041 mg gallic acid equivalents/g dry extract, respectively. Total flavonoid contents were 52.60 ± 1.15 and 49.44 ± 1.90 mg rutin equivalents/g dry extract. Both extracts showed strong antioxidant activity with 2,2-diphenyl-1-picrylhydrazyl radical scavenging percentages of 82.77% and 82.51%, and IC50 values of 1.47 and 4.16 mg/mL, respectively. Liquid chromatography–mass spectrometry profiling of the hydroalcoholic extract identified major bioactive compounds, including <i>p</i>-coumaric acid, caffeic acid, catechin, myricetin, rutin, luteolin, and kaempferol.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>These results underscore the efficacy of ultrasonic-assisted solvent extraction in isolating phenolic and flavonoid compounds from eggplant calyx. Considering the abundance and accessibility of this plant material, coupled with its significant bioactive compound content, the eggplant calyx emerges as a promising, cost-effective source for the development of functional ingredients in the food, pharmaceutical, and cosmetic sectors, particularly in developing countries.</p>\u0000 </section>\u0000 </div>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 4","pages":"131-139"},"PeriodicalIF":1.1,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70038","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683307","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":"Development of an analytical method for detecting triterpene alcohols in camellia oil and evaluation of their anti-inflammatory effects","authors":"Hengguang Cheng,&nbsp;Qing Jiang,&nbsp;Xiaoxia Li,&nbsp;Yunjie Jiang,&nbsp;Tinghuan Fang,&nbsp;Lirong Tang","doi":"10.1002/jsf2.70027","DOIUrl":"https://doi.org/10.1002/jsf2.70027","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Camellia oil is a characteristic Chinese plant oil and is hailed as “the olive oil of the East”. However, there is a significant difference in the active ingredient between it and olive oil, which consequently leads to different effects.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>A detection method for triterpene alcohols in camellia oil was developed and validated using a gas chromatography/gas chromatography–mass spectrometry. Human keratinocytes were utilized to construct an oxidative stress-induced injury model to detect related inflammatory factors, thereby verifying the anti-inflammatory effect of triterpene alcohol. The results indicated that camellia oil contained β-amyrin, lupeol, and butyrospermol. This method exhibits a good linear relationship within a certain concentration range, with a linear correlation coefficient R2 greater than 0.9999. The limits of detection (LOD) for β-amyrin, lupeol, and butyrospermol were 21, 12, and 12 mg/kg, respectively, and the limits of quantification (LOQ) were 81, 39, and 39 mg/kg. The recovery rates of spiked samples at three concentration levels (low, medium, and high) ranged from 88.9% to 100.2%, and the relative standard deviations ranged from 1.79% to 4.47%. Through anti-inflammatory research, glycerol trioleate can significantly reduce the level of IL-1α, Thymic stromal lymphopoietin (TSLP), IL-8, and PGE2. On the dimensions of IL-1α and TSLP, triterpene alcohols can synergistically enhance the effect of glycerol trioleate in further reducing the level of inflammatory factors. Therefore, this indicates that triterpene alcohols can synergistically enhance the anti-inflammatory effect of glycerol trioleate.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The findings provide data support for the further research on triterpene alcohols in camellia oil and the application of camellia oil in cosmetics.</p>\u0000 </section>\u0000 </div>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 3","pages":"62-72"},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568261","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 the impact of a biostimulant developed with carbon-dot and Brazil's dependence on foreign technologies","authors":"Grace F. Ghesti,&nbsp;Victor Seabra Dornas,&nbsp;Cristina M. Quintella,&nbsp;Aryane Ribeiro Oliveira,&nbsp;Amanda Felipe Reitenbach","doi":"10.1002/jsf2.70025","DOIUrl":"https://doi.org/10.1002/jsf2.70025","url":null,"abstract":"<p>Fertilizers developed using carbon quantum dot nanotechnology may mitigate Brazil's technological dependence, directly influencing the future of global food production. Technological prospecting in the field of C-dot-based fertilizers revealed a global scarcity of such technologies, indicating high development potential. Although 10,000 patent results were identified, only 26 met the filtering criteria for fertilizers containing C-dots. The association with the dispersion index derived from World Bank data indicates that Brazil is in a prominent position to shape the future of food production. Data from Brazilian institutions show that the importation of approximately 6 million tons of intermediate fertilizers—crucial inputs for food production—compared to 1 million tons produced domestically has remained stagnant over the years, representing a potential future risk. Based on extensive research involving patent prospecting databases, World Bank data, and reports from Brazilian institutions, it was found that the nanotechnology known as Arbolina, developed in partnership between the University of Brasília, Embrapa, and Krilltech, may represent a promising pathway toward a positive and sustainable future in food distribution for a global population projected to reach 9 billion by 2050. Technological investment in fertilizer innovation in Brazil is therefore a matter of global relevance.</p>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 3","pages":"54-61"},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147562639","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":"Enhancing polyphenol synthesis and antioxidant activity in Camellia sinensis using shikimic and salicylic acids","authors":"Mir Sultanul Arafin,&nbsp;Shelina Akter Sheuli,&nbsp;Sadia Sultana,&nbsp;Mahir Azmal,&nbsp;Ajit Ghosh","doi":"10.1002/jsf2.70029","DOIUrl":"https://doi.org/10.1002/jsf2.70029","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p><i>Camellia sinensis</i>, widely consumed as tea, is the second most popular beverage globally and is valued for its health benefits. However, environmental stressors pose a significant challenge to the tea industry. This study investigates the potential of shikimic acid (ShA) and its derivative, salicylic acid (SA), as inducers to enhance polyphenol content and antioxidant activity across different growth stages.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Experiments on Biclonal Tea Stock 1 (BTS1) family plants, including 4-month-old seedlings and 2-year-old plants, revealed significant increases in polyphenol levels and antioxidant activity following induction, though effects diminished over time. SA provided a stronger initial boost, whereas ShA sustained longer-lasting effects. Two-year-old plants exhibited greater baseline polyphenol levels and a stronger response to induction than seedlings. A strong correlation between polyphenol accumulation and antioxidant activity was also observed. Molecular docking simulations suggested that SA signaling facilitates NPR1-TGA and NPR1-WRKY binding to the PAL promoter, enhancing PAL gene transcription. Additionally, polyphenols such as flavones, p-coumaric acid, gallic acid, and caffeic acid were found to interact with the PAL enzyme through mechanisms similar to that of trans-cinnamic acid and may, therefore, act as feedback inhibitors in a manner analogous to trans-cinnamic acid.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>These findings provide novel insights into optimizing tea plant defenses and enhancing polyphenol-related health benefits, offering potential strategies for improving tea quality and resilience against environmental stress.</p>\u0000 </section>\u0000 </div>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 3","pages":"73-87"},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563502","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 the impact of a biostimulant developed with carbon-dot and Brazil's dependence on foreign technologies","authors":"Grace F. Ghesti,&nbsp;Victor Seabra Dornas,&nbsp;Cristina M. Quintella,&nbsp;Aryane Ribeiro Oliveira,&nbsp;Amanda Felipe Reitenbach","doi":"10.1002/jsf2.70025","DOIUrl":"10.1002/jsf2.70025","url":null,"abstract":"<p>Fertilizers developed using carbon quantum dot nanotechnology may mitigate Brazil's technological dependence, directly influencing the future of global food production. Technological prospecting in the field of C-dot-based fertilizers revealed a global scarcity of such technologies, indicating high development potential. Although 10,000 patent results were identified, only 26 met the filtering criteria for fertilizers containing C-dots. The association with the dispersion index derived from World Bank data indicates that Brazil is in a prominent position to shape the future of food production. Data from Brazilian institutions show that the importation of approximately 6 million tons of intermediate fertilizers—crucial inputs for food production—compared to 1 million tons produced domestically has remained stagnant over the years, representing a potential future risk. Based on extensive research involving patent prospecting databases, World Bank data, and reports from Brazilian institutions, it was found that the nanotechnology known as Arbolina, developed in partnership between the University of Brasília, Embrapa, and Krilltech, may represent a promising pathway toward a positive and sustainable future in food distribution for a global population projected to reach 9 billion by 2050. Technological investment in fertilizer innovation in Brazil is therefore a matter of global relevance.</p>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 3","pages":"54-61"},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147562637","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":"Phytochemical profile and antioxidant potential of sea buckthorn leaves: A comprehensive analysis of nutrients and bioactive compounds","authors":"Fatima Zohra Chenni,&nbsp;Hedi Mighri,&nbsp;Fatima Zohra Ghanemi,&nbsp;Kahina Hamenni,&nbsp;Naima Bennour,&nbsp;Samira Meziani,&nbsp;Kouider Sennous,&nbsp;Jordi Saldo","doi":"10.1002/jsf2.70033","DOIUrl":"https://doi.org/10.1002/jsf2.70033","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Sea buckthorn (<i>Hippophae rhamnoides</i> L.) is a valuable plant with diverse health benefits attributed to its rich phytochemical composition and medicinal properties. In this study, the chemical composition and antioxidant potential of sea buckthorn leaves were investigated using a hydroethanolic extract. Proximate analysis, mineral content determination, antioxidant assays (DPPH and ABTS), and antihemolytic activity were employed to assess the nutritional and functional properties of the extract.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Proximate analysis revealed significant amounts of carbohydrates (61.51 g/100 g), proteins (12.49 g/100 g), and fats (13.4 g/100 g). The mineral composition showed high calcium, sodium, and magnesium levels, with potassium being the lowest among the major minerals. The total phenolic content (TPC) was 131.34 mg GAE/g extract DW, and the total flavonoid content (TFC) was 43.00 mg CE/g extract DW. Antioxidant activities linked to the phenolic profile were notable, with DPPH and ABTS assays showing IC50 values of 2.10 mg/g DW and 0.46 mg/g DW, respectively. The phenolic profile, dominated by quinic and rutin, contributed to the observed strong antioxidant activity. Furthermore, the extract exhibited potent reducing power and anti-hemolytic activity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The findings of this study highlight the potential of sea buckthorn leaves as a valuable source of nutrients and bioactive compounds with potent antioxidant properties. Further research is warranted to explore the specific mechanisms of action and potential applications of these compounds in various health-promoting products.</p>\u0000 </section>\u0000 </div>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 3","pages":"88-95"},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564970","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":"Enhancing polyphenol synthesis and antioxidant activity in Camellia sinensis using shikimic and salicylic acids","authors":"Mir Sultanul Arafin,&nbsp;Shelina Akter Sheuli,&nbsp;Sadia Sultana,&nbsp;Mahir Azmal,&nbsp;Ajit Ghosh","doi":"10.1002/jsf2.70029","DOIUrl":"10.1002/jsf2.70029","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p><i>Camellia sinensis</i>, widely consumed as tea, is the second most popular beverage globally and is valued for its health benefits. However, environmental stressors pose a significant challenge to the tea industry. This study investigates the potential of shikimic acid (ShA) and its derivative, salicylic acid (SA), as inducers to enhance polyphenol content and antioxidant activity across different growth stages.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Experiments on Biclonal Tea Stock 1 (BTS1) family plants, including 4-month-old seedlings and 2-year-old plants, revealed significant increases in polyphenol levels and antioxidant activity following induction, though effects diminished over time. SA provided a stronger initial boost, whereas ShA sustained longer-lasting effects. Two-year-old plants exhibited greater baseline polyphenol levels and a stronger response to induction than seedlings. A strong correlation between polyphenol accumulation and antioxidant activity was also observed. Molecular docking simulations suggested that SA signaling facilitates NPR1-TGA and NPR1-WRKY binding to the PAL promoter, enhancing PAL gene transcription. Additionally, polyphenols such as flavones, p-coumaric acid, gallic acid, and caffeic acid were found to interact with the PAL enzyme through mechanisms similar to that of trans-cinnamic acid and may, therefore, act as feedback inhibitors in a manner analogous to trans-cinnamic acid.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>These findings provide novel insights into optimizing tea plant defenses and enhancing polyphenol-related health benefits, offering potential strategies for improving tea quality and resilience against environmental stress.</p>\u0000 </section>\u0000 </div>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 3","pages":"73-87"},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563287","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}