α-amylase (a) and α-glucosidase (b) inhibitory capacities of Yam-Curculigo pilosa composite flours. Y0CP, Control; Y1CP, 1% of yam flour was substituted by Curculigo pilosa; Y3CP, 3% of yam flour was substituted by Curculigo pilosa; Y5CP, 5% of yam flour was substituted by Curculigo pilosa; Y10CP, 10% of yam flour was substituted by Curculigo pilosa