Abstract

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Author(s):: ZHANG Dandan1; 2; LI Qianhui1; 2; FAN Junjun1; 2; ZHOU Ting1; 2; ZHANG Wangxiang1; 2; 3; XUE Chengbo4; (1.College of Forestry,Nanjing Forestry University,Nanjing,Jiangsu 210037；2.Co-Innovation Center for Sustainable Forestry in Southern China,Nanjing Forestry University,Nanjing,Jiangsu 210037；3.Yangzhou Crabapple Horticulture Limited Company,Yangzhou,Jiangsu 225200；4.Institute of Forestry,Chemical Industry of China Academy of Forestry,Nanjing,Jiangsu 210037)

Abstract:: In this study,using 5 years old Malus ‘Red Jewel’ as the research object and single factor test design as method,the effects of headspace equilibration time,headspace equilibrium temperature and sample quality were studied.Single factor analysis of variance,principal component analysis (PCA) and linear discriminant analysis (LDA) were used to determine the best experimental parameters and provided technical support for the crabapple fruit aroma by electronic nose.The results showed that it was feasible to detection of crabapple fruit aroma use electronic nose,and the 7th,9th and 2nd sensors had higher relative resistivity value than the other sensors.The best test parameters of the crabapple fruit aroma by electronic nose test were headspace equilibrium time 30 minutes,headspace equilibrium temperature 25 ℃,sample quality 10 g；LDA method was more obvious than PCA method,and more suitable for electronic nose detection of crabapple fruit aroma research data analysis.