摘要
为了建立一种有效的潲水油鉴别方法,运用气相色谱法和峰面积校正归一化法,对5种动物油、5种植物油和5种潲水油及其精炼成分中的脂肪酸组分进行定性定量分析,最终确定以脂肪酸相对不饱和度(U/S)、短链脂肪含量、十三烷酸及十七烷酸等奇数碳脂肪酸含量作为潲水油油脂的内源性特征物质,并以此作为检测指标,结果表明:潲水油油脂中脂肪酸相对不饱和度(U/S)值明显小于同种类植物油脂肪酸相对不饱和度(U/S);短链脂肪酸在普通植物油中无法检出,但在潲水油中含量较高(0.05%～0.7%);在潲水油中检测出十三烷酸和十七烷酸等奇数碳脂肪酸(0.23%)。
In this paper, the components of fatty acid from five kinds of animal oil, vegetable oil, swill oil and their refined oil were analyzed. The swill oil was detected by using the index of unsaturated fatty acid （U/S） ,the con- tain of short chain fat acid,tridecoic acid,heptadecylic acid and odd carbon fatty acid as the endogenous substance of the swill oil. The result shows that the common edible oil could be distinguished from swill oil comparing by those three testing indexes. This method were effectively and quickly to reduce the misjudgments.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2013年第2期186-191,共6页
Food and Fermentation Industries
关键词
潲水油
气相色谱
动植物油脂
相对不饱和度
短链脂肪酸
swill oil, gas chromatography, animal oil, vegetable oil, unsaturated fatty acid, short chain fat acid
