Supercritical Carbon Dioxide Extraction, Antioxidant Activity, and Fatty Acid Composition of Bran Oil from Rice Varieties Cultivated in Portugal

Bibliographic Details
Title: Supercritical Carbon Dioxide Extraction, Antioxidant Activity, and Fatty Acid Composition of Bran Oil from Rice Varieties Cultivated in Portugal
Authors: Tânia I. Pinto, José A. Coelho, Bruna I. Pires, Nuno R. Neng, José M. Nogueira, João C. Bordado, José P. Sardinha
Source: Separations, Vol 8, Iss 8, p 115 (2021)
Publisher Information: MDPI AG, 2021.
Publication Year: 2021
Collection: LCC:Physics
LCC:Chemistry
Subject Terms: rice bran oil, supercritical CO2, extraction, fatty acids, antioxidant activity, Physics, QC1-999, Chemistry, QD1-999
More Details: 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 (10–20 g), CO2 flow rate (0.5–1.5 L/min), pressure (20–60 MPa), and temperature (40–80 °C) 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%–16.32%), oleic (44.60%–52.56%), and linoleic (29.90%–38.51%). 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.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2297-8739
Relation: https://www.mdpi.com/2297-8739/8/8/115; https://doaj.org/toc/2297-8739
DOI: 10.3390/separations8080115
Access URL: https://doaj.org/article/f2550560a67f49c3b7ce43b1f36cf0eb
Accession Number: edsdoj.f2550560a67f49c3b7ce43b1f36cf0eb
Database: Directory of Open Access Journals
More Details
ISSN:22978739
DOI:10.3390/separations8080115
Published in:Separations
Language:English