关键词: 月见草, γ-亚麻酸, 尿素包合法, 富集, 正交实验

Abstract:

In this study, enrichment ofγ-linolenic acid in evening primrose oil was conducted through urea inclusion method. The condition for inclusion was investigated to optimize inclusion time, urea and material ratio, and inclusion temperature through orthogonal tests. The optimal condition for inclusion was 1:3:8 of fatty acid, urea and ethanol (m/m/V), －20 ℃ of inclusion temperature, and 12 h of inclusion time. The content ofγ-linolenic acid was significantly improved through urea inclusion and reached 51.9% under this optimal inclusion condition from 10%.

Key words: evening primrose, γ-linolenic acid, urea inclusion method, enrichment, orthogonal test