Table 1. Total tannin contents of grape skin and seed at different solvents condition

Solvent		Skin (mg/g)	Seed (mg/g)
Methanol	100%	0.01±0.137e,1)2)	9.37±0.773cd
	70%	0.97±0.163d	11.27±1.089bc
	70% + 0.5% HCl	2.25±0.190b	12.14±0.462b
Ethanol	100%	–0.06±0.129e	8.82±0.498d
	70%	0.93±0.111d	11.12±0.594bc
	70% + 0.5% HCl	1.45±0.272c	12.33±0.657b
Acetone	100%	0.73±0.098d	10.73±0.544bc
	70%	2.51±0.083b	14.45±0.944a
	70% + 0.5% HCl	2.92±0.207a	14.72±0.921a

¹⁾Mean±Standard deviation. (n=4)
²⁾Different letters are significantly different at p<0.05 by Duncan’s multiple range test (DMRT).