Publication: Effects of extraction methods on phytochemicals of rice bran oils produced from colored rice
5
Issued Date
2018-01-01
Resource Type
ISSN
13473352
13458957
13458957
Other identifier(s)
2-s2.0-85041422287
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Oleo Science. Vol.67, No.2 (2018), 135-142
Suggested Citation
Sukanya Mingyai, Khongsak Srikaeo, Aikkarach Kettawan, Riantong Singanusong, Kiyotaka Nakagawa, Fumiko Kimura, Junya Ito Effects of extraction methods on phytochemicals of rice bran oils produced from colored rice. Journal of Oleo Science. Vol.67, No.2 (2018), 135-142. doi:10.5650/jos.ess17122 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/45456
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Effects of extraction methods on phytochemicals of rice bran oils produced from colored rice
Abstract
© 2018 by Japan Oil Chemists’ Society. Rice bran oil (RBO) especially from colored rice is rich in phytochemicals and has become popular in food, cosmetic, nutraceutical and pharmaceutical applications owing to its offering health benefits. This study determined the contents of phytochemicals including oryzanols, phytosterols, tocopherols (Toc) and tocotrienols (T3) in RBOs extracted using different methods namely cold-press extraction (CPE), solvent extraction (SE) and supercritical CO2 extraction (SC-CO2). Two colored rice, Red Jasmine rice (RJM, red rice) and Hom-nin rice (HN, black rice), were studied in comparison with the popular Thai fragrant rice Khao Dawk Mali 105 (KDML 105, white rice). RBOs were found to be the rich source of oryzanols, phytosterols, Toc and T3. Rice varieties had a greater effect on the phytochemicals concentrations than extraction methods. HN rice showed the significantly highest concentration of all phytochemicals, followed by RJM and KDML 105 rice, indicating that colored rice contained high concentration of phytochemicals in the oil than non-colored rice. The RBO samples extracted by the CPE method had a greater concentration of the phytochemicals than those extracted by the SC-CO2 and SE methods, respectively. In terms of phytochemical contents, HN rice extracted using CPE method was found to be the best.