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Extraction of Grape Seed Oil from Grape Seed with Supercritical CO2
Author(s): 
Pages: 23-27
Year: Issue:  1
Journal: JOURNAL OF CHEMICAL ENGINEERING OF CHINESE UNIVERSITIES

Keyword:  葡萄籽葡萄籽油超临界流体萃取分离二氧化碳;
Abstract: 葡萄籽油中富含亚油酸和其它不饱和脂肪酸,具有较高的食用和药用价值.传统的葡萄籽油提取方法存在着收率低和溶剂残留的问题.今基于对酿酒过程中废弃葡萄籽的开发利用,探讨了采用绿色洁净分离技术--超临界流体萃取技术从废弃葡萄籽中萃取葡萄籽油的可行性,重点考察了萃取温度、萃取压力、CO2用量及不同原料对葡萄籽油产率的影响.研究表明萃取压力对产率的影响较温度显著,实验确定适宜工艺条件为萃取温度55°,萃取压力30MPa.此条件下以张裕酒厂提供的籽为原料所得产率为9.71%,同时气相色谱分析表明,葡萄籽油产品中含有72.05%的亚油酸.另外,分别以三种不同来源的葡萄籽为原料进行实验,研究显示,葡萄籽油产率随原料不同而存在一定差异,产率较高者可达13.51%.
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