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Stability of rice bran oil extracted by SFE and soxhlet methods during accelerated shelf-life storage


Citation

Mariod, Abdul Basit and Ismail, Maznah and Abd Rahman, N. F. and Matthaus, Bertrand (2014) Stability of rice bran oil extracted by SFE and soxhlet methods during accelerated shelf-life storage. Grasas y Aceites, 65 (1). art. no. e013. pp. 1-10. ISSN 0017-3495; ESSN: 1988-4214

Abstract

Supercritical fluid high oryzanol (SFE HO) and supercritical fluid low oryzanol (SFE LO) rice bran oils were obtained and compared with that extracted by the Soxhlet (SOX) method. Their composition and stability during storage were determined. The amount of unsaponifiable matter and gamma oryzanol of SFE samples were significantly (p < 0.05) higher than SOX. While the amount of tocopherol in SOX (4.0 mg·g-1) was higher than that reported in SFE HO and SFE LO, at 3.2 and 2.6 mg·g-1, respectively. After storage for 42 days at 70 °C the PV, FFA%, conjugated diene and p-anisidine values of SOX were higher than those of SFE HO, and SFE LO. The SFE samples showed better stability than SOX under successive heating and the addition of BHA decreased PV, FFA%, conjugated diene and p-anisidine levels in all samples.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Medicine and Health Science
Institute of Bioscience
DOI Number: https://doi.org/10.3989/gya.109413
Publisher: Consejo Superior de Investigaciones Cientificas
Keywords: Oryzanol; Rice bran oil; Shelf life; Soxhlet; Stability; Supercritical fluid extraction; Tocopherol
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 11 Jan 2016 02:08
Last Modified: 11 Jan 2016 02:08
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3989/gya.109413
URI: http://psasir.upm.edu.my/id/eprint/35449
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