Table 3
Inhibition rates of starch hydrolyzing enzymes in sorghum lines different tannin concentration

Sorghum lines		α-amylase		α-glucosidase		β-glucosidase
Sorghum lines		-PVP¹⁾	+PVP²⁾	-PVP	+PVP	-PVP	+PVP
Control	Sorghum var. (Nampungchal)	72.76^h3)	4.47^k	99.87^a	-⁴⁾	36.87^b	25.14^ab
Control	Rice (Saechucheong)	5.22^m	-	-	-	5.41^g	4.23^k
Non-tannin lines	SL 3	12.18^l	12.54^f	57.64^b	8.74^f	12.91^f	11.17^h
Non-tannin lines	SL 19	16.84^k	19.71^c	35.70^c	2.51^g	13.21^f	12.20^gh
Tannin lines	SL 152	52.68^j	6.45ⁱ	97.64^a	-	13.86^f	9.22ⁱ
	SL 119	75.26^g	15.41^e	99.49^a	50.74^e	33.45^c	26.12^a
	SL 94	82.07^bc	8.96^h	99.43^a	-	26.71^d	20.15^c
	SL 140	65.23ⁱ	24.37^b	99.09^a	65.04^cd	26.83^d	15.34^de
	SL 135	79.92^de	6.45^ij	99.91^a	-	23.43^e	13.56^fg
	SL 36	82.43^b	13.97^f	99.34^a	-	26.98^d	16.61^d
	SL 63	75.26^g	20.43^c	99.86^a	74.30^b	21.99^e	14.80^ef
	SL 17	72.40^h	6.09^j	99.34^a	67.29^c	31.89^c	24.11^b
	SL 85	81.00^cd	9.67^g	99.49^a	60.80^d	26.83^d	15.63^de
	SL 160	79.57^e	16.12^d	99.57^a	78.12^b	39.54^a	24.11^b
	SL 81	79.57^e	4.65^k	99.32^a	74.76^b	22.02^e	7.80^j
	SL 1	77.77^f	27.24^a	99.37^a	84.96^a	28.31^d	4.88^k
	SL 70	84.94^a	7.88^h	99.52^a	77.01^b	36.14^b	19.18^c

¹⁾-PVP, No polyvinylpyrrolidone pretreatment.
²⁾+PVP, 2% polyvinylpyrrolidone pretreatment.
³⁾Means with different small letters in the same column are significantly (p<0.05) by Duncan's multiple range test.
⁴⁾-, No inhibition.