The effect of condensed tannin-ELCTB-3.1.1 and acarbose on reducing plasma glucose in ICR (Institute of Cancer Research) mice. Condensed tannin-ELCTB-3.1.1 and acarbose at the doses of 50 mg/kg bw and 25 mg/kg bw (A), 100 mg/kg bw and 50 mg/kg bw (B), respectively, were administered to mice (n = 8). Distilled water was administered to mice in the control groups (●, n = 8). Blood of mice was sampled and measured at 0.5, 1, 1.5, and 2 h after loading the compound or acarbose. Means of blood glucose level with the different letters in the same figure are significantly different based on Duncan’s Multiple Range Test (alpha = 0.05). CV: coefficient of variation.