Study for Whitening Effect, Antioxidant and Anti-wrinkle Activity of Tapioca-unhulled Barley Dried Distiller's Grains with Solubles

Abstract

This study intends to present the value of use as an eco-friendly, bioactive functional material by utilizing the undervalued tapiocaunhulled barley dried distiller's grains with solubles (TBDDGS). The physiological activity of TBDDGS presented through whitening activity, antioxidant activity, and anti-wrinkle effect. As a result of measuring the mushroom tyrosinase inhibitory activity in the hot water extracts of TBDDGS, the extracts showed 1.21% at 20 mg/mL concentration, 7.39% at 50 mg/mL concentration, and 25.78% at 100 mg/mL concentration, depending on the concentration of the extracts. The radical scavenging ability of DPPH was 28.7% at 10 mg/mL concentration, 38.0% at 20 mg/mL concentration, 60.9% at 50 mg/mL concentration, and 80.1% at 100 mg/mL concentration. The collagenase inhibitory activity of the extracts was 92.8% at a 6 mg/mL concentration. Elastase inhibitory activity was 97.8% at 100 mg/mL concentration. From the above results, the collagenase inhibitory activity of the extracts was 92.8% at a 6 mg/mL concentration. The elastase inhibitory activity was 97.8% at 100 mg/mL concentration. Although TBDDGS in this study has lower physiological activity compared to the control group, it was considered to have industrial value as a functional cosmetic raw material in consideration of the advantages of stable raw material supply and price competitiveness as an eco-friendly cosmetic raw material.