基于电子鼻和GC-MS分析黑果腺肋花楸酒香气特征与差异性

Aroma characterization and variability of Aronia melanocarpa wines based on electronic nose and GC-MS analysis

为深入了解黑果腺肋花楸酒的香气特征,对市售5种黑果腺肋花楸干酒(编号为D1~D5)、1种甜酒(编号为S6)、4种白酒(编号为L7~L10)和2种啤酒(编号为B11~B12)进行气相色谱-质谱联用(GC-MS)技术及电子鼻检测,并对结果进行线性判别分析(LDA)及聚类分析(CA)。结果表明,黑果腺肋花楸酒样品共检测出103种挥发性化合物,其中酯类42种,醇类21种,醛类7种,酮类6种,酸类10种,烯烃类4种。干酒、甜酒、白酒、啤酒分别检出挥发性物质64种、47种、31种、46种,干酒、白酒、啤酒共有成分占比分别为39.06%、22.58%、63.04%。电子鼻检测LDA结果与GC-MS检测CA结果显示,黑果腺肋花楸酒样品之间香气特征存在差异和共性,利用其挥发性香气成分的GC-MS及电子鼻检测结果进行区分和鉴别。

In order to gain deep insight into the aroma characteristics of Aronia melanocarpa wines,5 commercially available A.melanocarpa dry wines(coded as D1-D5),1 sweet wine(coded as S6),4 Baijiu(coded as L7-L10)and 2 beers(coded as B11-B12)were analyzed by GC-MS and electronic nose,and the results were subjected by linear discriminant analysis(LDA)and cluster analysis(CA).The results showed that 103 volatile compounds were detected in the samples of A.melanocarpa wine,including 42 esters,21 alcohols,7 aldehydes,6 ketones,10 acids and 4 olefins.There were 64,47,31,and 46 volatile compounds detected in dry wines,sweet wine,Baijiu(Chinese liquor),and beers,respectively,and as for the volatile compounds shared by the same type wines,dry wines,Baijiu,and beers accounted for 39.06%,22.58%,and 63.04%,respectively.The results of electronic nose linear discriminant analysis(LDA)and GC-MS cluster analysis(CA)showed that there were differences and commonalities in the aroma characteristics among the A.melanocarpa wine samples,which could be distinguished and identified using the GC-MS and electronic nose results of their volatile aroma compounds.