为检验电子舌对新鲜荔枝的辨识能力,研究采用法国Alpha M.O.S公司生产的传感器型电子舌对深圳、惠东、惠来和钦州四大产区的妃子笑、桂味、糯米糍和怀枝荔枝进行检测,所得信号数据用主成分分析法(PCA)进行分析。结果表明,该电子舌可以很好的区分同一品种不同产区的荔枝以及同一产区不同品种的荔枝,辨别指数分别在95%以上和98%以上。因此,电子舌在新鲜荔枝品种及产地区分以及品牌荔枝真伪辨识中有巨大的应用潜力。 In order to test the identification ability of the electronic tongue on fresh lychee, the research uses the sensor-type electronic tongue produced by France’s Alpha MOS Corporation to test the quality of the fresh lychees grown in Shenzhen, Huidong, Huilai and Qinzhou. Detection, the resulting signal data using principal component analysis (PCA) analysis. The results showed that the electronic tongue could distinguish lychee in different regions of the same variety and lychees of different varieties in the same region with the distinguishing index above 95% and above 98% respectively. Therefore, the electronic tongue in fresh lychee varieties and the origin of the distinction as well as the authenticity of brand identification in litchi has great potential.