Collaborative analysis on difference of apple fruits flavour using electronic nose and electronic tongue

The flavour difference and other quality indicators among five popular apple varieties (‘Ralls’, ‘Jonagold’, ‘Orin’, ‘Indo’, and ‘Hanfu’) were evaluated mainly using electronic nose and electronic tongue coupled with gas chromatography-mass spectrometry (SPME/GC–MS). By linear discriminant analysis (LDA) of E-nose output data, the aroma of ‘Orin’ was found to be quite different from other varieties. There were obvious differences on sourness,...