{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T20:39:11Z","timestamp":1792787951550,"version":"4.5.0"},"reference-count":59,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T00:00:00Z","timestamp":1775779200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Serbian Ministry of Science, Technological Development, and Innovation","award":["451-03-33\/2026-03\/200003"],"award-info":[{"award-number":["451-03-33\/2026-03\/200003"]}]},{"name":"Serbian Ministry of Science, Technological Development, and Innovation","award":["451-03-34\/2026-03\/200116"],"award-info":[{"award-number":["451-03-34\/2026-03\/200116"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Plants"],"abstract":"<jats:p>Medlar (Mespilus germanica L.) fruit presents a good source of bioactive compounds. This study aimed to optimize the traditional extraction method, maceration, in order to obtain extracts rich in polyphenols. The total phenolic compounds (TPC) from physiologically ripe (PRMFs) and consumable ripe (CRMFs) medlar fruits were extracted to develop models with high accuracy and prediction capacity by response surface methodology (RSM). Furthermore, the main phenolic compounds in the extracts were quantified using HPLC, and the extracts were tested for antioxidant activity and hypoglycemic activity. The extracts were prepared according to a central composite design. The extraction parameters for both PRMFs and CRMFs were time (30\u2013210 min), ethanol concentration (20\u201380%) and solid-to-solvent ratio (1:10\u20131:50). The obtained results indicated that the optimal conditions for the extraction were 210 min, 66.55% ethanol, and 1:50 solid-to-solvent ratio (PRMF), and 120 min, 74.96% ethanol, and 1:50 solid-to-solvent ratio (CRMF). Under the optimized conditions, values for TPC were in agreement with the values predicted by RSM. Isoquercitrin, rutin, procyanidin B2, chlorogenic acid and caffeic acid were the most abundant compounds in both PRMF and CRMF optimized extracts. TPC, antioxidant activity, and inhibition of \u03b1-glucosidase and \u03b1-amylase enzymes did not show significant differences (p &gt; 0.05) among PRMF and CRMF extracts.<\/jats:p>","DOI":"10.3390\/plants15081169","type":"journal-article","created":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T09:08:12Z","timestamp":1775812092000},"page":"1169","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Underutilized Medlar (Mespilus germanica L.) Fruit: Polyphenol Extraction Optimization, Chemical Profiling, and In Vitro Pharmacological Evaluation"],"prefix":"10.3390","volume":"15","author":[{"given":"Nenad","family":"Mi\u0107anovi\u0107","sequence":"first","affiliation":[{"name":"University of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6736-3637","authenticated-orcid":false,"given":"Nada","family":"\u0106uji\u0107 Nikoli\u0107","sequence":"additional","affiliation":[{"name":"Institute for Medicinal Plants Research \u201cDr. Josif Pan\u010di\u0107\u201d, Tadeu\u0161a Ko\u0161\u0107u\u0161ka 1, 11000 Belgrade, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9684-2637","authenticated-orcid":false,"given":"Jelena","family":"\u017divkovi\u0107","sequence":"additional","affiliation":[{"name":"Institute for Medicinal Plants Research \u201cDr. Josif Pan\u010di\u0107\u201d, Tadeu\u0161a Ko\u0161\u0107u\u0161ka 1, 11000 Belgrade, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2086-9593","authenticated-orcid":false,"given":"Katarina","family":"\u0160avikin","sequence":"additional","affiliation":[{"name":"Institute for Medicinal Plants Research \u201cDr. Josif Pan\u010di\u0107\u201d, Tadeu\u0161a Ko\u0161\u0107u\u0161ka 1, 11000 Belgrade, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nemanja","family":"Krgovi\u0107","sequence":"additional","affiliation":[{"name":"Institute for Medicinal Plants Research \u201cDr. Josif Pan\u010di\u0107\u201d, Tadeu\u0161a Ko\u0161\u0107u\u0161ka 1, 11000 Belgrade, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4057-3826","authenticated-orcid":false,"given":"Jelena","family":"Popovi\u0107-\u0110or\u0111evi\u0107","sequence":"additional","affiliation":[{"name":"University of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,4,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"\u017bo\u0142nierczyk, A.K., Cia\u0142ek, S., Styczy\u0144ska, M., and Oziemb\u0142owski, M. 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