期刊
JOURNAL OF SUPERCRITICAL FLUIDS
卷 68, 期 -, 页码 45-51出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.supflu.2012.04.008
关键词
Cannabis sativa L.; Supercritical CO2 (SC-CO2); Oil yield; Oxidation stability; RSM
资金
- Friuli Venezia Giulia Region [art. 17/LR 26/2005]
Hemp seed oil is considered one of the best nutritional oil for health. The present work is focused on the optimization of the hemp seed oil extractive process at laboratory level using supercritical carbon dioxide (SC-CO2) as solvent. Response surface methodology (RSM) was used to optimize hemp seed oil extraction yield and oxidation stability. Independent variables were operating temperature (40, 50 and 60 degrees C), pressure (250, 300 and 350 bar) and particle diameter (0.59, 0.71 and 0.83 mm). A second-order polynomial equation was used to express both the oil yield and the oil oxidation stability as a function of independent variables. The responses and variables were fitted well to each other by multiple regressions. The maximum oil yield, 21.50% w/w, was obtained when SC-CO2 extraction was carried out at 40 degrees C, 300 bar and 0.71 mm of particle size. The maximum oil oxidation stability, 2.35 Eq alpha toc/ml oil, was obtained at 60 degrees C, 250 bar and 0.83 mm of particle size. A comparison between hemp seed oil composition extracted by SC-CO2 under the optimum operating conditions determined by RSM for oil yield and by organic solvent was reported. (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据