Electronic Tongue Combined with Chemometrics to Provenance Discrimination for a Green Tea (Anji-White Tea)

Electronic Tongue Combined with Chemometrics to Provenance Discrimination for a Green Tea (Anji-White Tea)

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This paper aims to provide a stable instrumental method for provenance PRO BPH PROSTATE FORMULA discrimination of Anji-White tea by its distinctive taste.180 authentic and 60 copyright white tea samples were collected for specific geographical origins detection; all of them were measured by electronic tongue coupled with 7 independent sensors.Therefore, chemometrics methods, principal component analysis (PCA), and partial least squares discriminant analysis (PLSDA) were performed in classification.

The PCA distribution shows that, in provenance analysis, PCA is a simple and reliable tool for small sample sets, but for sets with large objects, PCA seems powerless in classification.Therefore, PLSDA was applied to develop a classification model.The prediction sensitivity and specificity of PLSDA, respectively, reached 0.

917 and 0.950.This study demonstrates the potential of combining electronic tongue system and BOSCH Serie 4 KGN39VL35G 60/40 Fridge Freezer - Silver chemometrics as an effective tool for specific geographical origins detection in Anji-White tea.