A continuous countercurrent supercritical fluid deacidification process for phytosterol ester fortification in rice bran oil
A continuous countercurrent supercritical fluid deacidification process for phytosterol ester fortification in rice bran oil
复制标题
DOI：
10.1016/s0963-9969(02)00134-5
复制
发表时间：
2003-01-01
影响因子：
8.1
通讯作者：
King, JW
中科院分区：
文献类型：
--
作者：
Dunford, NT;Teel, JA;King, JW
本研究探讨了连续逆流超临界二氧化碳分馏技术对米糠油脱酸的潜力。中试规模的填充柱用于实验。结果表明，在低压（138巴）和高温（80 ℃）下分馏，可有效地从粗米糠油中除去游离脂肪酸，而提取馏分中没有任何谷维素损失。萃余液馏分中谷维素的含量是进料的3倍。在脱酸过程中，萃余液馏分中的植物甾醇脂肪酸酯含量也有所增加，但这些部分的富集程度不如谷维素。(C)2002爱思唯尔科技有限公司版权所有。
This study examines the potential of a continuous countercurrent supercritical carbon dioxide fractionation technique for deacidification of crude rice bran oil. A pilot scale packed column was utilized for the experiments. It was shown that fractionation at low pressure, 138 Bar, and high temperature, 80 degreesC, effectively removed free fatty acids from crude rice bran oil without any oryzanol loss in the extract fraction. Oryzanol content of the raffinate fraction was three times higher than that of the feed material. Phytosterol fatty acid ester content of the raffinate fraction was also increased during the deacidification process, however the enrichment of these moieties was not as high as that found for oryzanol. (C) 2002 Elsevier Science Ltd. All rights reserved.