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Foods

Title:		"Application of GC-TOF/MS and GCxGC-TOF/MS to Discriminate Coffee Products in Three States (Bean, Powder, and Brew)"
Author(s):		Fang X; Chen Y; Gao J; Run Z; Chen H; Shi R; Li Y; Zhang H; Liu Y;
Address:		"College of Food and Health, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China. Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China. Secondary College of Cereals and Tourism, Guangxi Vocational College of Technology and Business, Nanning 530005, China"
Journal Title:		Foods
Year:		2023
Volume:		20230820
Issue:		16
Page Number:		-
DOI:		10.3390/foods12163123
ISSN/ISBN:		2304-8158 (Print) 2304-8158 (Electronic) 2304-8158 (Linking)
Abstract:		"The volatiles in coffee play an important part in the overall flavor profile. In this study, GC-TOF/MS and GCxGC-TOF/MS were used to detect the volatile organic compounds (VOCs) in coffee samples of three different brands at three states (bean, powder, and brew). The differences between the two methods in characterizing VOCs were analyzed using the Venn diagram and PCA (principal component analysis). The important aroma-contributing compounds were further compared and analyzed. The results of the venn diagrams of different coffee samples showed that most VOCs existed in 2-3 kinds of coffee. The PCA of VOCs in different coffee samples showed that the VOCs detected by GC-TOF/MS could distinguish the coffee samples in the different states. GCxGC-TOF/MS was suitable for the further identification and differentiation of the different brands of coffee samples. In addition, pyridine, pyrrole, alcohols, and phenols greatly contributed to distinguishing coffee in three states, and alcohols greatly contributed to distinguishing the three brands of coffee"
Keywords:		GCxGC-TOF/MS Gc-tof/ms coffee volatile organic components;
Notes:		"PubMed-not-MEDLINEFang, Xiaolei Chen, Yanping Gao, Jie Run, Zimu Chen, He Shi, Ruoqi Li, Yingqiu Zhang, Haihua Liu, Yuan eng 2020[6]/High Level Innovation Team and Distinguished Scholar Project of Guangxi Universities and Colleges/ Switzerland 2023/08/26 Foods. 2023 Aug 20; 12(16):3123. doi: 10.3390/foods12163123"