{"title":"Phytochemical profile and antioxidant potential of sea buckthorn leaves: A comprehensive analysis of nutrients and bioactive compounds","authors":"Fatima Zohra Chenni, Hedi Mighri, Fatima Zohra Ghanemi, Kahina Hamenni, Naima Bennour, Samira Meziani, Kouider Sennous, 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}
JSFA reportsPub Date : 2026-02-03Epub Date: 2025-11-07DOI: 10.1002/jsf2.70021
Nancy Katana Kalage, Athanasia O. Matemu, Thomas Thomas Kivevele
{"title":"The influence of a solar-assisted heat pump dryer integrated with thermal energy storage on reducing fungal load in dried products (maize and groundnuts)","authors":"Nancy Katana Kalage, Athanasia O. Matemu, Thomas Thomas Kivevele","doi":"10.1002/jsf2.70021","DOIUrl":"10.1002/jsf2.70021","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Fungal contamination is a major issue in agriculture, especially during pre- and post-harvest stages, affecting grains like maize and groundnuts. Traditional drying methods, such as open sun drying, have not been effective in preventing fungal risks. This study investigates the thermal performance and the effect of using a solar-assisted heat pump dryer integrated with thermal energy storage to reduce fungal load in maize and groundnut flour.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Results showed that the experimental drying process maintained a consistent average temperature of 53°C, showing significant reductions in moisture content (<i>p</i> < 0.05), supported by drying rates ranging from 0.01 to 0.32. Findings also revealed average coefficients of performance for drying maize and groundnut flour, standing at 3.23 and 3.52, respectively. Furthermore, the results demonstrated good drying efficiency during the drying of maize and groundnut, showing a considerable improvement in overall drying performance. In addition, the solar collector coupled with a thermal energy storage system achieves a remarkable thermal storage efficiency of 71.42% and 71.19%, respectively. Results also revealed a reduction in fungal load in both maize and groundnut flour samples after 8 h of drying, providing compelling evidence of the system's effectiveness in maintaining product safety and quality. The complete elimination of fungal growth was achieved after 32 h.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Therefore, the proposed drying method has the potential to be a sustainable solution for food processing. This method can improve food safety, extend shelf life, and help reduce food waste, meeting the demand for efficiency in the drying industry.</p>\u0000 </section>\u0000 </div>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 2","pages":"18-28"},"PeriodicalIF":1.1,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146139442","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":"Physicochemical property and in vivo prebiotic function of α-(1 → 2) and α-(1 → 3)-branched dextran derived from Leuconostoc citreum KD3","authors":"Kentaro Yoshida, Shiori Shibata, Shuto Abe, Chiaki Matsuzaki, Yuji Honda, Kenji Matsumoto, Takashi Koyanagi","doi":"10.1002/jsf2.70023","DOIUrl":"10.1002/jsf2.70023","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>We isolated lactic acid bacteria (LAB) from Japanese traditional fermented foods and vegetables, and screened for exopolysaccharide (EPS)-producing strains. The <i>Leuconostoc citreum</i> KD3 was isolated as a strain that produces an α-glucan (KD3-dextran) with α-(1 → 6)-linked main chain with a considerable amount of α-(1 → 2) branches. This type of polysaccharide has not been well investigated for its in vivo health benefits. We therefore evaluated in vivo digestibility of KD3-dextran and cecal short-chain fatty acids (SCFA) property by conducting a mice study, as well as in vitro physical properties including molecular weight and viscosity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p><sup>1</sup>H-NMR analysis showed that KD3-dextran is an α-glucan with 84.3% of α-(1 → 6) linkages, 13.1% of α-(1 → 2) linkages and 2.5% of α-(1 → 3) linkages. KD3-dextran showed shear thinning viscosity comparable to hydroxypropyl methylcellulose at the same concentration at 25°C. Weight-average molecular weight of KD3-dextran was approximately 1,470,000. A single oral administration of KD3-dextran to C57BL/6J mice revealed that KD3-dextran undergoes slight digestion, similar to commercial dextran. Four-week administration of KD3-dextran to C57BL/6J mice increased cecal acetic (1.6-fold) and propionic (2.0-fold) acids.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>We were the first to directly demonstrate in vivo that α-1,2-branched glucan enhances SCFA levels in the mouse cecum. These results revealed the industrially useful properties and functionality of KD3-dextran and indicated that KD3-dextran is a promising prebiotic ingredient.</p>\u0000 </section>\u0000 </div>","PeriodicalId":93795,"journal":{"name":"JSFA reports","volume":"6 2","pages":"39-49"},"PeriodicalIF":1.1,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/jsf2.70023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146139874","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}
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