Articles
Evaluation of Chinese plum aroma by electronic nose
Article number
1450_42
Pages
317 – 326
Language
English
Abstract
Prunus is one of the most extensively distributed and cultivated fruit trees globally.
The Chinese plum (Prunus salicina L.), native to China, is distinguished by its pronounced genetic heterogeneity and fruit trait diversity.
In recent years, there has been a growing demand for the sensory quality of plum fruit aroma, which has emerged as a key area for selecting elite germplasm and advancing genetic improvement and breeding.
Traditional detection methods are characterized by complex pretreatment processes, high costs associated with chemical testing, and stringent technical requirements for experimental operations.
These methods are limited by their lack of rapid response times, detection speed, and the ability to perform non-destructive aroma analysis, thereby precluding accurate simulation of consumer olfactory perception.
This study systematically collected the aroma profiles of 77 different cultivars of plum fruit by electronic nose and obtained sensor response values, through data analysis conducted using principal component analysis (PCA), loading analysis (LO). The results revealed that the average aroma values exhibited a normal distribution, with significant differences observed across aroma channels.
Notably, the aroma response value of W1W was the highest, whereas that of W1C was the lowest.
Variance analysis of aroma channels indicated that W1W had the highest degree of dispersion, followed by W5S, with W1C, W5C, W3C, W6S, and W3C exhibiting relatively low dispersion and central distribution.
Additionally, the aroma response value of W3S was positively correlated with other sensor responses.
LO analysis identified W1W, W5S, W1S, W2W, and W2S sensors as key players in assessing the aroma of the tested plums.
In conjunction with PCA, these findings enabled the selection of plum cultivars with distinct aromas, such as ‘Lishuihong’, ‘Wuxiangli’ and ‘Xiangjiaoli’. This research provides a crucial foundation for future studies on plum fruit aroma quality and cultivar improvement, as well as for genetic theory research, breeding, and production.
The Chinese plum (Prunus salicina L.), native to China, is distinguished by its pronounced genetic heterogeneity and fruit trait diversity.
In recent years, there has been a growing demand for the sensory quality of plum fruit aroma, which has emerged as a key area for selecting elite germplasm and advancing genetic improvement and breeding.
Traditional detection methods are characterized by complex pretreatment processes, high costs associated with chemical testing, and stringent technical requirements for experimental operations.
These methods are limited by their lack of rapid response times, detection speed, and the ability to perform non-destructive aroma analysis, thereby precluding accurate simulation of consumer olfactory perception.
This study systematically collected the aroma profiles of 77 different cultivars of plum fruit by electronic nose and obtained sensor response values, through data analysis conducted using principal component analysis (PCA), loading analysis (LO). The results revealed that the average aroma values exhibited a normal distribution, with significant differences observed across aroma channels.
Notably, the aroma response value of W1W was the highest, whereas that of W1C was the lowest.
Variance analysis of aroma channels indicated that W1W had the highest degree of dispersion, followed by W5S, with W1C, W5C, W3C, W6S, and W3C exhibiting relatively low dispersion and central distribution.
Additionally, the aroma response value of W3S was positively correlated with other sensor responses.
LO analysis identified W1W, W5S, W1S, W2W, and W2S sensors as key players in assessing the aroma of the tested plums.
In conjunction with PCA, these findings enabled the selection of plum cultivars with distinct aromas, such as ‘Lishuihong’, ‘Wuxiangli’ and ‘Xiangjiaoli’. This research provides a crucial foundation for future studies on plum fruit aroma quality and cultivar improvement, as well as for genetic theory research, breeding, and production.
Publication
Authors
Y. Zhang, H. Zhao, S. Liu
Keywords
Chinese plum, electronic nose, aroma analysis
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