Evaluation of Chinese apricot aroma by electronic nose

To investigate the variations in fruit aroma among different apricot germplasms and provide insights for aroma assessment and enhancing the quality of apricot fruits, we assessed the aroma components in the fruits of 46 apricot cultivars using the PEN 3 electronic nose system.
We collected response values from different sensors and further conducted principal component analysis (PCA), linear discriminant analysis (LDA), and loading analysis (LA). The LA results revealed that five sensors, namely, W5S (sensitive to NOx compounds), W1S (sensitive to methane compounds), W1W (sensitive to hydrogen sulfide), W2S (sensitive to broad alcohols), and W2W (sensitive to organic sulfides), played a significant role in evaluating the aroma of apricot fruits.
The LDA method successfully distinguished native apricots from Shanxi, Guizhou, Tianjin, Beijing, Sichuan, and Ningxia from the other 11 distinct apricot cultivars in this study.
The cultivars exhibiting higher differentiation included ‘Jiping’, ‘Kailidaxing’, ‘Jinxing’, ‘Taiyuantaoxing’, ‘Yangjiyuan’, ‘Jixianxiangbai’, ‘Baihuanna’, ‘Lintongmaizihuang’ and ‘Guduxing’.

I International Symposium on Apricot and Plum

J. Liu, W. Liu, N. Liu, Q. Zhang, Yu. Zhang, Y. Zhang, M. Xu, X. Ma, H. Zhao, B. Wang, S. Liu

apricot, electronic nose, fruit aroma

https://doi.org/10.17660/ActaHortic.2026.1450.49