不同制油方法对石榴籽油品质的影响

Effect of extraction methods on quality of pomegranate seed oil

通过对超临界CO2萃取法、亚临界丁烷萃取法、有机溶剂萃取法和压榨法所得的石榴籽油进行脂肪酸组成分析,研究4种不同制油方法对石榴籽油石榴酸含量的影响,并对石榴籽油进行理化指标及抗氧化性分析。结果表明:亚临界丁烷萃取法所得石榴籽油的石榴酸含量最高,可达82.39%,有机溶剂萃取法所得石榴籽油石榴酸含量最低。亚临界丁烷萃取法所得石榴籽油得率最高,理化指标较好,抗氧化性最强。

The effects of four kinds of extraction methods on the content of punicic acid in pomegranate seed oil were studied through analysis of fatty acid composition of pomegranate seed oils obtained by the methods of supercritical CO2 extraction,subcritical butane extraction,organic solvent extraction and pressing.The physicochemical index and antioxidation of pomegranate seed oil were analyzed.The results showed that the content of punicic acid in pomegranate seed oil extracted by subcritical butane was the highest,reaching82.39%,while the content of punicic acid in pomegranate seed oil extracted by organic solvent was the lowest.The pomegranate seed oil extracted by subcritical butane had the highest yield,better physicochemical indexes and the strongest antioxidation.