{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T20:49:25Z","timestamp":1775076565039,"version":"3.50.1"},"reference-count":62,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2021,8,5]],"date-time":"2021-08-05T00:00:00Z","timestamp":1628121600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100008530","name":"European Regional Development Fund","doi-asserted-by":"publisher","award":["23290"],"award-info":[{"award-number":["23290"]}],"id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Separations"],"abstract":"<jats:p>Bran of different rice cultivars produced in Portugal were used to study supercritical carbon dioxide extraction conditions of rice bran oil (RBO) and evaluate and compare antioxidant activity and fatty acid composition of the different rice bran varieties. The effect of plant loading (10\u201320 g), CO2 flow rate (0.5\u20131.5 L\/min), pressure (20\u201360 MPa), and temperature (40\u201380 \u00b0C) was studied. The amount of oil extracted ranged from 11.72%, for Ariete cultivar, to 15.60%, for Sirio cultivar. The main fatty acids components obtained were palmitic (13.37%\u201316.32%), oleic (44.60%\u201352.56%), and linoleic (29.90%\u201338.51%). Excellent parameters of the susceptibility to oxidation of the oils were obtained and compare. RBO of Ariete and Gladio varieties presented superior DPPH and ABTS radical scavenging activities, whereas, Minima, Ellebi, and Sirio varieties had the lowest scavenging activities. Moreover, the oil obtained towards the final stages of extraction presented increased antioxidant activity.<\/jats:p>","DOI":"10.3390\/separations8080115","type":"journal-article","created":{"date-parts":[[2021,8,5]],"date-time":"2021-08-05T04:33:29Z","timestamp":1628138009000},"page":"115","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["Supercritical Carbon Dioxide Extraction, Antioxidant Activity, and Fatty Acid Composition of Bran Oil from Rice Varieties Cultivated in Portugal"],"prefix":"10.3390","volume":"8","author":[{"given":"T\u00e2nia I.","family":"Pinto","sequence":"first","affiliation":[{"name":"Centro de Recursos Naturais e Ambiente (CERENA), Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8118-0864","authenticated-orcid":false,"given":"Jos\u00e9 A.","family":"Coelho","sequence":"additional","affiliation":[{"name":"Centro de Investiga\u00e7\u00e3o de Engenharia Qu\u00edmica e Biotecnologia, Instituto Superior de Engenharia de Lisboa, Instituto Polit\u00e9cnico de Lisboa, Rua Conselheiro Em\u00eddio Navarro, 1, 1959-007 Lisboa, Portugal"},{"name":"Centro de Qu\u00edmica Estrutural, Instituto Superior T\u00e9cnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal"}]},{"given":"Bruna I.","family":"Pires","sequence":"additional","affiliation":[{"name":"Centro de Recursos Naturais e Ambiente (CERENA), Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9879-1565","authenticated-orcid":false,"given":"Nuno R.","family":"Neng","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural, Faculdade de Ci\u00eancias, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal"},{"name":"Departamento de Qu\u00edmica e Bioqu\u00edmica, Faculdade de Ci\u00eancias, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5785-6780","authenticated-orcid":false,"given":"Jos\u00e9 M.","family":"Nogueira","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural, Faculdade de Ci\u00eancias, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal"},{"name":"Departamento de Qu\u00edmica e Bioqu\u00edmica, Faculdade de Ci\u00eancias, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal"}]},{"given":"Jo\u00e3o C.","family":"Bordado","sequence":"additional","affiliation":[{"name":"Centro de Recursos Naturais e Ambiente (CERENA), Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal"},{"name":"Departmento de Engenharia Qu\u00edmica, Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal"}]},{"given":"Jos\u00e9 P.","family":"Sardinha","sequence":"additional","affiliation":[{"name":"Centro de Recursos Naturais e Ambiente (CERENA), Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal"},{"name":"Departmento de Engenharia e Ci\u00eancias Nucleares, Instituto Superior T\u00e9cnico, Universidade de Lisboa, Estrada Nacional 10, ao km 139, Bobadela, 2695-066 Lisboa, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,5]]},"reference":[{"key":"ref_1","unstructured":"(2021, March 18). Food and Agriculture Organization of the United Nations, FAOSTAT Data, Crops. 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