{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T20:45:56Z","timestamp":1792701956852,"version":"4.5.0"},"reference-count":60,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T00:00:00Z","timestamp":1784073600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005740","name":"Universidad Nacional del Sur","doi-asserted-by":"publisher","award":["PGI TIR Resolution CSU-1116\/23"],"award-info":[{"award-number":["PGI TIR Resolution CSU-1116\/23"]}],"id":[{"id":"10.13039\/501100005740","id-type":"DOI","asserted-by":"publisher"}]},{"award":["PGI TIR Resolution CSU-1116\/23"],"award-info":[{"award-number":["PGI TIR Resolution CSU-1116\/23"]}],"id":[{"id":"https:\/\/ror.org\/028crwz56","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>This study explores the valorization of olive pomace through the green recovery of bioactive phenolic compounds for application in active packaging for olive oil preservation, alongside the development of a low-cost analytical strategy aligned with white analytical chemistry principles. Ultrasound-assisted extraction using 50% (v\/v) aqueous ethanol significantly improved polyphenol recovery, reducing extraction time to 2 min while increasing efficiency compared to conventional maceration. Total phenolic content was determined using the Folin\u2013Ciocalteu method and measured with both a UV\u2013Vis spectrophotometer and a portable 3D-printed smartphone-based device, which showed excellent agreement with the reference method and comparable analytical performance. Optimized extracts were incorporated into starch\u2013glycerol films, enhancing UV-barrier properties and enabling controlled release of phenolics. When applied to olive oil packaging, the films reduced color degradation under accelerated aging, indicating improved photo-oxidative stability. Composting tests suggested the biodegradation capability of the developed materials under the evaluated conditions. Overall, the study demonstrates an integrated sustainable approach combining waste valorization, active packaging development, and accessible analytical innovation.<\/jats:p>","DOI":"10.3390\/molecules31142476","type":"journal-article","created":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T01:05:07Z","timestamp":1784163907000},"page":"2476","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Portable Quantification and Sustainable Active Packaging of Olive Pomace Polyphenols Obtained by Green Recovery"],"prefix":"10.3390","volume":"31","author":[{"given":"Natalia","family":"Gonzalez","sequence":"first","affiliation":[{"name":"INQUISUR, Departamento de Qu\u00edmica, Universidad Nacional del Sur, CONICET, UNS, Av. Alem 1253, Bah\u00eda Blanca 8000, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ezequiel","family":"Vidal","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Biochemistry, California State University, San Marcos, CA 92078, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carolina C.","family":"Acebal","sequence":"additional","affiliation":[{"name":"INQUISUR, Departamento de Qu\u00edmica, Universidad Nacional del Sur, CONICET, UNS, Av. Alem 1253, Bah\u00eda Blanca 8000, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claudia E.","family":"Domini","sequence":"additional","affiliation":[{"name":"INQUISUR, Departamento de Qu\u00edmica, Universidad Nacional del Sur, CONICET, UNS, Av. Alem 1253, Bah\u00eda Blanca 8000, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olivia V.","family":"L\u00f3pez","sequence":"additional","affiliation":[{"name":"Planta Piloto de Ingenier\u00eda Qu\u00edmica, PLAPIQUI (UNS-CONICET), Camino La Carrindanga Km 7, Bah\u00eda Blanca 8000, Argentina"},{"name":"Departamento de Qu\u00edmica, Universidad Nacional del Sur (UNS), Av. Alem 1253, Bah\u00eda Blanca 8000, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"e202301697","DOI":"10.1002\/cbdv.202301697","article-title":"A Review of Recent Progresses on Olive Oil Chemical Profiling, Extraction Technology, Shelf-life, and Quality Control","volume":"21","author":"Gagour","year":"2024","journal-title":"Chem. 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