Supercritical carbon dioxide extraction of astaxanthin from Haematococcus pluvialis with vegetable oils as co-solvent

被引：137

作者：

Krichnavaruk, Sontaya ^{[1
]}

Shotipruk, Artiwan ^{[1
]}

Goto, Motonobu ^{[2
]}

Pavasant, Prasert ^{[1
]}

机构：

[1] Chulalongkorn Univ, Dept Chem Engn, Fac Engn, Bangkok 10330, Thailand

[2] Kumamoto Univ, Dept Appl Chem & Biochem, Kumamoto 8608555, Japan

来源：

BIORESOURCE TECHNOLOGY | 2008年 / 99卷 / 13期

关键词：

high pressure extraction; antioxidants; carotenoids; soybean oil; olive oil;

D O I：

10.1016/j.biortech.2007.10.049

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Soybean oil and olive oil were investigated as continuous co-solvents for supercritical carbon dioxide (SC-CO2) extraction of astaxanthin from Haematococcus pluvialis. Without co-solvents, only 25.40 +/- 0.79% efficiency was achieved with SC-CO2 extraction at 70 degrees C and 40 MPa at a continuous flow rate of 3 mL min(-1) for 5 It. In the presence of soybean oil or olive oil as a co-solvent, the extraction efficiency was enhanced, with the most appropriate level of soybean oil in the solvent mixture being 10% by volume. At this concentration and the above extraction conditions, the highest extraction efficiency of 36.36 +/- 0.79% was obtained for soybean oil, a 30% increase in extraction efficiency compared with SC-CO2 extraction without soybean oil, whereas the 10% olive oil increased the extraction efficiency further to 51.03 +/- 1.08%, which was comparable to that obtained using ethanol as co-solvent. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：5556 / 5560

页数：5

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