摘要
以混合脂肪酸为原料,以提取率、碘价为指标,在单因素试验基础上,采用正交试验确定尿素包合法富集马齿苋全草油中多不饱和脂肪酸的最佳工艺条件。利用气相色谱―质谱联用仪(GC–MS)对富集前后的混合脂肪酸组成进行分析并比较。结果表明,尿素包合法富集马齿苋全草油中多不饱和脂肪酸的最优工艺条件是:尿素/混合脂肪酸(m/m)为1,混合脂肪酸/乙醇(m/v)为1∶16,回流时间为20 min,包合时间为24 h。多不饱和脂肪酸含量由68.12%提高到91.35%。
Theoptimum urea inclusion technology for enriching and purifying highcontentof polyunsaturated fatty acids from purslane whole plantoil wasobtained through theorthogonal design on the basisof single factor tests with mix–polyunsaturated fatty acid as raw material,and extraction rate and iodine as index. The fatty acidcomponentsof mix–polyunsaturated fatty acid before and after purification were analyzed andcompared by meansof gaschromatography–mass spectrometry（GC–MS）. The results showed that theoptimumconditionsof urea inclusion reaction were as following：urea/mixed fatty acids（m/m） 1,mixed fatty acids/ethanol（m/v） 1∶16,reflow time 20 min and inclusion time 24 h. Thecontentof polyunsaturated fatty acid increased to 91.35% from 68.12%.
出处
《粮食与油脂》
北大核心
2015年第2期33-36,共4页
Cereals & Oils
基金
2013年自治区重点技术创新项目(新经信科装[2013]178号)
关键词
混合脂肪酸
尿素包合
正交优化
脂肪酸分析
mix-polyunsaturated fatty acid
urea inclusion
orthogonaloptimization
analysisof fatty acid
作者简介
敬思群（1966-），女，教授，硕士生导师，研究方向：新疆特色林果深加工。
