摘要
为了解市售牡丹籽油的香气特征和呈香物质的差异性,选取了10款销量较高的市售牡丹籽油为研究对象,利用电子鼻和GC-MS对其香气差异性进行分析。结果表明,现有市售牡丹籽油的香气及呈香物质存在显著差异。不同牡丹籽油产品中挥发性成分对电子鼻传感器的敏感性大致相同,但响应值有所差异,结合线性判别分析可实现对不同牡丹籽油产品整体香气特征的快速区分。GC-MS结果显示,在10种市售牡丹籽油产品中共检出133种挥发性化合物,其在各样品中的组成和比例不同,分别形成了不同牡丹籽油产品的独特风味。采用相对气味活度值法分析得到3种关键风味化合物和5种修饰性风味化合物,是造成不同牡丹籽油产品香气差异的主要物质。对这些物质进行主成分分析,可以简单区分不同牡丹籽油产品。研究可为后续牡丹籽油风味物质的研究以及控制和优化其香气品质提供参考。
To understand the dissimilarity of aroma characteristics and aroma substances of commercial peony seed oil,10 peony seed oil with high sales in the market were selected as the research object in this study,and the aroma was analyzed by using electronic nose and gas chromatography-mass spectrometer(GC-MS).The results showed that there were significant differences in the aroma characteristics and aroma substances of the commercial peony seed oil.The volatile components in different peony seed oil products had roughly the same sensitivity as electronic nose sensors,but the response values were different.Combining with linear discriminant analysis(LDA),this method could quickly distinguish the overall aroma characteristics of different peony seed oil products.Based on GC-MS,133 volatile compounds were detected in 10 commercial peony seed oil products.Their components and ratios in the samples were different which formed the unique aroma of each peony seed oil product.The relative odor activity value(ROAV)was used to analyze the 3 key flavor compounds and 5 modified flavor compounds which were the main substances that contributed to differences in the aroma of samples.Based on the PCA,different peony seed oil products could be roughly distinguished.This study provides a reference for the follow-up study of the flavor compounds of peony seed oil,the control and optimization of its aroma quality.
作者
闫鉴
兰天
王家琪
鲍诗晗
王悦
孙翔宇
马婷婷
YAN Jian;LAN Tian;WANG Jiaqi;BAO Shihan;WANG Yue;SUN Xiangyu;MA Tingting(Shigejie Zhihua Biotechnology Co.Ltd.,Changzhi 046299,China;College of Food Science and Engineering,Northwest A&F University,Yangling 712100,China;College of Enology,Northwest A&F University,Yangling 712100,China)
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2021年第19期264-270,I0002-I0005,共11页
Food and Fermentation Industries
基金
山西潞安石圪节智华生物科技有限公司科技计划项目(2020-4
2020-62)。
关键词
牡丹籽油
香气
关键香气化合物
电子鼻
气质联用技术
peony seed oil
aroma
key aroma compounds
electronic nose
gas chromatography-mass spectrometry
