The Taste Analysis of Chicken Essence with Electronic Tongue

In order to study the distinguishing ability of electric tongue and taste difference of chicken essence with different brands,TS-5000Z type taste analysis system is used.In this paper,chicken essence with 7 different brands is detected after being diluted.Through rich graphs displaying,the principal component analysis(PCA)and evaluation analysis of the response signals of sensors are carried out.The result indicates that the umami indexes of samples are in the range of 14.9~15.8,the richness indexes are in the range of 5.2~6.1,the gaps are all less than 1 unit.Conclusion: Electronic tongue can't efficiently distinguish umami taste of chicken essence with 7 different brands,this conclusion matches with the actual situation that umami substances in chicken essence with different brands are mainly sodium glutamate.