Combining Electronic Tongue Array and Chemometrics for Discriminating the Specific Geographical Origins of Green Tea

Table 1

Sensor sensitivity (pC) of ASTREE electronic tongue system.

Basic tastes	Substances	ZZ	BA	BB	CA	GA	HA	JB
Sour	Citric acid	7	6	7	7	7	6	6
Salty	KCL	7	4	4	5	4	4	4
Sweet	Glucose	7	4	7	7	4	4	4
Bitter	Caffeine	5	4	4	5	4	4	4
Savory	L-arginine	6	4	6	5	5	4	5