期刊论文

中文

食品工业科技

1002-0306

2017

38

1

296-299

10.13386/j.issn1002-0306.2017.01.051

2014KF06:油料脂质化学与营养湖北省重点实验室开放性课题 11JJ4027:湖南省自然科学基金 2013-4-01:引进国际先进林业科学技术项目项目)

本校为第一机构

以17种不同的杏仁油为原料,采用顶空固相微萃取(SPME)和气相色谱仪测定了其挥发性成分,建立了杏仁油挥发性成分指纹图谱,并采用向量夹角余弦法计算了指纹图谱相似度。结果表明,杏仁油挥发性成分指纹图谱由12个共有色谱峰构成,通过聚类分析和相似度分析,发现该指纹图谱重复性好,专属性强。在该方法的基础上,建立了菜籽油-杏仁油掺伪模型:Y=-2947.0X~(3+)1254.9X~2+77.661X+46.693(其中Y为菜籽油掺假比例%,X为夹角余弦cosθ),适用于掺伪量15%以上杏仁油的鉴别。

To build a fingerprint based on volatile component of apricot kernel oil, we used the headspace solid phase microextraction（SPME） and GC method to determinate the volatile components of 17 kinds of different apricot kernel oil, and the fingerprint similarity was calculated by vector included angle cosine method.The results showed that the apricot kernel oil fingerprint of volatile component consisted of 12 common chromatographic peaks,and the fingerprint was of good repeatability and strong specificity according to the similarity and cluster ...