Table 1. The color value of dried sweet potato strips supplemented with different concentration of soybean pulp

	0%	1%	3%	5%
L*	23.08±2.23^a	21.43±1.22^a	30.34±2.93^b	36.19±3.10^b
a*	34.28±0.28^ab	36.10±0.86^a	31.52±1.05^b	33.81±2.50^ab
b*	35.61±3.57^a	33.57±2.18^a	39.99±0.08^a	47.35±3.34^b

Different letters indicate significant differences from the 0% control group (p<0.05). 0%: dried sweet potato strips without soybean pulp; 1%: dried sweet potato strips supplemented with 1% soybean pulp; 3%: dried sweet potato strips supplemented with 3% soybean pulp; 5%: dried sweet potato strips supplemented with 5% soybean pulp.