文献类型：期刊文献

英文题名：Optimization of process parameters for supercritical carbon dioxide extraction of Passiflora seed oil by response surface methodology

作者：Liu, Shucheng[1]; Yang, Feng[1]; Zhang, Chaohua[1]; Ji, Hongwu[1]; Hong, Pengzhi[1];刘书成[2];邓楚津[2];洪鹏志[2];章超桦[2];吉宏武[2];

机构：Guangdong Ocean Univ, Coll Food Sci & Technol, Zhanjiang 524025, Peoples R China; Guangxi Univ Technol, Dept Biol & Chem Engn, Liuzhou 545006, Peoples R China

年份：2009

卷号：48

期号：1

起止页码：9

外文期刊名：JOURNAL OF SUPERCRITICAL FLUIDS

收录：SCI-EXPANDED(收录号：WOS:000263766900002)、、EI(收录号：20090511890551)、Scopus(收录号：2-s2.0-58749084101)、WOS

基金：The authors gratefully acknowledge natural science financial support from Guangdong Ocean University.

语种：英文

外文关键词：Passiflora; Seed oil; Supercritical carbon dioxide; Response surface methodology

外文摘要：Response surface methodology (RSM) was employed to optimize the process parameters of supercritical carbon dioxide extraction of the passion fruit seed oil. The effects of temperature, pressure and extraction time on the oil yield were investigated. Results showed that the data were adequately fitted into the second-order polynomial model. The linear and quadratic of independent variables, temperature, pressure and extraction time, the interactions between temperature and extraction time, pressure and extraction time had a significant effect on the oil yield. It was predicted that the optimum extraction process parameters within the experimental ranges would be the extraction temperature of 56 degrees C and pressure of 26 MPa and extraction time of 4 h. Under these conditions, the oil yield was 25.83%. The color of passion fruit seed oil extracted by supercritical carbon dioxide is golden orange. Its physical and chemical properties come up to the required standard for edible oil. The content of unsaturated fatty acid in passion fruit seed oil was up to 89.43% and the content of linoleic acid was over 72%. (C) 2008 Elsevier B.V. All rights reserved.