Evaluation of Maturity and Flavor of Melons Using an Electronic Nose  

作　　者：TANG Xiao-wei HE Hong-ju GENG Li-hua ZHANG Wan-qing 

机构地区：[1]Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forest Sciences, Beijing 100097 [2]Beijing Ensoul Technology Ltd., Beijing 100055

出　　处：《Agricultural Science & Technology》2011年第3期447-450,共4页农业科学与技术（英文版）

基　　金：Supported by National Natural Science Foundation of China(30870109)

摘　　要：In this work,an electronic nose was used to evaluate the different cultivars and mature stages of melons,so as to establish a scientific method to accurately distinguish the maturity and varieties of melons. Principal component analysis (PCA) and linear discriminant analysis (LDA ) showed that immature melons could be well distinguished from mature melons using electronic nose. When PCA method was used to analyze,electronic nose could completely classify and identify the maturity of melons. Meanwhile,the electronic nose could distinguish different varieties of melons with high discrimination value. The flavor of samples under cut or no cut conditions would slightly change,leading to the variation of discrimination value among different varieties. The samples with similar flavor under no cut condition could be analyzed through cutting mode. The research built a rapid and accurate method to judge the maturity of melons instead of man sense.In this work,an electronic nose was used to evaluate the different cultivars and mature stages of melons,so as to establish a scientific method to accurately distinguish the maturity and varieties of melons. Principal component analysis （PCA） and linear discriminant analysis （LDA ） showed that immature melons could be well distinguished from mature melons using electronic nose. When PCA method was used to analyze,electronic nose could completely classify and identify the maturity of melons. Meanwhile,the electronic nose could distinguish different varieties of melons with high discrimination value. The flavor of samples under cut or no cut conditions would slightly change,leading to the variation of discrimination value among different varieties. The samples with similar flavor under no cut condition could be analyzed through cutting mode. The research built a rapid and accurate method to judge the maturity of melons instead of man sense.

关 键 词：MELON MATURITY FLAVOR Electronic nose 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] F272.92[自动化与计算机技术—控制科学与工程]