Table 1.

Amylopectin chain length distributions and in vitro digestibility of OSA modified rice starches.

OSA Substitution of Rice Starches	DS Value	Average Chain Length	Distribution (%)				In Vitro Digestibility			Relative Crystallinity (%)
			DP 6–12	DP 13–24	DP 25–36	DP ≥ 37	RDS (%)	SDS (%)	RS (%)
Hopyeong 0%	-	21.78 ± 0.14 a	27.20 ± 0.62 a	45.08 ± 0.55 a	12.33 ± 0.06 a	15.40 ± 0.01 a	61.85 ± 0.00 a	34.96 ± 0.23 a	3.20 ± 0.23 d	36.89 ± 0.46 a
Hopyeong 1%	0.0147 ± 0.0000 b	21.20 ± 0.11 b	27.77 ± 0.77 a	45.78 ± 0.54 a	12.26 ± 0.16 a	14.18 ± 0.07 b	60.22 ± 0.69 b	35.00 ± 0.29 a	4.78 ± 0.40 c	36.26 ± 0.03 a
Hopyeong 2%	0.0213 ± 0.0000 a	20.82 ± 0.08 c	28.41 ± 0.75 a	46.20 ± 0.65 a	12.05 ± 0.08 a	13.34 ± 0.01 c	58.64 ± 0.17 c	32.15 ± 0.29 b	9.21 ± 0.11 b	35.41 ± 0.03 b
Hopyeong 3%	0.0258 ± 0.0000 a	20.79 ± 0.02 c	28.99 ± 0.72 a	45.75 ± 0.66 a	11.94 ± 0.17 a	13.31 ± 0.11 c	49.86 ± 0.29 d	35.08 ± 0.06 a	15.06 ± 0.34 a	34.42 ± 0.26 c
Sinseonchal 0%	-	21.91 ± 0.32 a	27.07 ± 0.76 b	44.34 ± 0.22 a	12.94 ± 0.09 a*	15.65 ± 0.45 a	67.46 ± 0.11 a*	32.52 ± 0.34 a*	0.03 ± 0.23 d*	37.48 ± 0.02 a
Sinseonchal 1%	0.0140 ± 0.0000 b	20.76 ± 0.19 b	29.94 ± 0.76 a	44.42 ± 0.36 a	12.07 ± 0.13 b	13.57 ± 0.27 bc	66.64 ± 0.11 a*	32.23 ± 0.06 a*	1.12 ± 0.06 c*	33.08 ± 0.80 b
Sinseonchal 2%	0.0246 ± 0.0000 a	21.03 ± 0.05 b	29.40 ± 0.17 a	44.42 ± 0.29 a	12.12 ± 0.05 b	14.07 ± 0.06 b*	62.86 ± 2.13 b	35.08 ± 1.78 a	2.06 ± 0.34 b*	32.27 ± 0.15 b*
Sinseonchal 3%	0.0262 ± 0.0000 a	20.64 ± 0.10 b	30.18 ± 0.51 a	44.47 ± 0.28 a	12.15 ± 0.13 b	13.20 ± 0.10 c	61.20 ± 1.61 c	33.61 ± 1.32 a	5.19 ± 0.29 a*	30.78 ± 0.39 c*

Data represent as the mean ± SD. ^a–d Values accompanied in the OSA rice starches with different substitution ratios of OSA significantly differ (p < 0.05) by Duncan’s multiple range test. * Significantly different between Hopyeong and Sinseonchal with same substitution ratios of OSA by t-test (* p < 0.05); 1%, 2%, and 3% refer to the substitution percentages of octenyl succinic anhydride modification of rice starches.