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Food Res Int

Title:		Characterization and classification of volatiles from different breeds of eggs by SPME-GC-MS and chemometrics
Author(s):		Xiang XL; Jin GF; Gouda M; Jin YG; Ma MH;
Address:		"National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China. National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China; Department of human nutrition & food science, National Research Centre, Dokki, Cairo, Egypt. National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China. Electronic address: jinyongguo@mail.hzau.edu.cn. National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China. Electronic address: mameihuhn@163.com"
Journal Title:		Food Res Int
Year:		2019
Volume:		20180910
Issue:
Page Number:		767 - 777
DOI:		10.1016/j.foodres.2018.09.010
ISSN/ISBN:		1873-7145 (Electronic) 0963-9969 (Linking)
Abstract:		"Volatiles of shell eggs were identified by SPME-GC-MS to characterize and discriminate white Leghorn (W), Hy-line brown (H) and Jing fen (J) hatching eggs with comparison, principal components (PC), partial least squares (PLS), random forest classification (RFC) and canonical discriminant (CD) analyses. DVB/CAR/PDMS fiber and extraction 60?ª+min were suited to analyze the volatiles emitted from eggs. A total of 17 or 18 volatile compounds were identified in raw shell hatching eggs, namely, nonanal, decanal and 6-methly-5-hepten-2-one were the main volatile components with contributions that over 70%. The composition and/or profile of volatile compounds from W and H eggs were much more similar than J eggs. Hexanal, decanal, 6-methly-5-hepten-2-one, heptanal, etc. have greatly contributed to the distinction of W, H and J eggs in sparse (S)-PLS and orthogonal (O)-PLS models. The accuracy of RFC and CD model were 100%, 100% (initial) and 83.3% (cross-validation), respectively. Heptanal, 6-methly-5-hepten-2-one, octanal, etc. were contributed positively to the classification of W, H, J eggs in RFC, especially for heptanal"
Keywords:		Animals Chickens/*classification Discriminant Analysis Egg Shell/*chemistry Eggs/*analysis Food Analysis/*methods *Gas Chromatography-Mass Spectrometry Least-Squares Analysis Multivariate Analysis Principal Component Analysis *Solid Phase Microextraction;
Notes:		"MedlineXiang, Xiao-le Jin, Guo-Feng Gouda, Mostafa Jin, Yong-Guo Ma, Mei-Hu eng Comparative Study Research Support, Non-U.S. Gov't Canada 2019/02/06 Food Res Int. 2019 Feb; 116:767-777. doi: 10.1016/j.foodres.2018.09.010. Epub 2018 Sep 10"