摘要
本实验研究了测定脂肪酸和甘三酯在检测茶油中掺伪4种其他植物油时的有效性。在本研究中,与脂肪酸和甘三酯指纹图谱向量夹角余弦相似度、亚麻酸相对含量、三亚油酸甘油酯(LLL)相对含量、碳当量数(ECN)42甘三酯的实际与理论含量绝对差(ΔECN42)值、(LLL/ECN42)×100值和ECN46/LLL值相比,(ECN44+ECN46)/LLL值是茶油中掺伪大豆油、葵花籽油和玉米油的最有效检测参数,分别可以检测茶油中掺伪3.35%的大豆油、1.73%的葵花籽油和3.01%的玉米油,亚麻酸相对含量是茶油中掺伪芥花籽油的最有效检测参数,可以检测茶油中掺伪7.55%的芥花籽油。
This paper investigates the effectiveness of the determinations of fatty acid and triglyceride profiles on the detection of adulteration of camellia oil with 4 kinds of other similarity of fingerprint of fatty acids and triglycerides, linolenic vegetable oils. In our research, compared with cosine acid content, trilinolein （LLL） content, the difference between actual and theoretical content of triglycerides with equivalent carbon number 42 （ AECN42）, （LLL/ECN42） × 100 and ECN46/LLL, the parameter of（ ECN44 ＋ ECN46）/LLL could be used to detect the adulteration of camellia oil with soybean oil ,sunflower oil and corn oil most effectively with the detection limits of 3.35%, 1.73% and 3.01%, respectively. Linolenic acid content could be used to detect the adulteration of camellia oil with canola oil most effec- tively with the added level of 7.55% of canola oil.
作者
朱晓阳
龙奇志
钟海雁
周波
Zhu Xiaoyang;Long Qizhi;Zhong Haiyan;Zhou Bo(College of Food Science and Engineering,Central South University of Forestry and Technology1, Changsha 410004;Hunan Province Key Laboratory of Quality Control and Deeply Processing of Cereals and Oil2, Changsha 410004;Key Laboratory of Cultivation and Protection for Non -Wood Forest Trees of Ministry of Education3 ,Changsha 410004)
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2018年第4期139-146,共8页
Journal of the Chinese Cereals and Oils Association
基金
湖南省林业厅项目(XLB201618)
江西省林业科学院重大专项(2018512101)
湖南省科技计划(2016NK2145)
湖南省研究生科研创新(CX2017B399)
关键词
茶油
掺伪
脂肪酸
甘三酯
指纹图谱
参数
camellia oil, adulteration, fatty acids, triglycerides, fingerprint, parameters
