Figure 5: (a) The data evaluation of berberine hydrochloride, mixture, and composite, (b) the preference index of berberine hydrochloride, mixture, and composites, versus berberine hydrochloride, *P < 0.05, **P < 0.01, (c) determined results of chemical evaluation method and human sensory test, versus berberine hydrochloride, **P < 0.01, ⁺⁺P < 0.01