Biological activities of isolated phenolic compounds from Trachelospermum asiaticum var. intermedium nakai

This study provided the evidence activity for biological of phenolic compounds from Trachelospermum asiaticum var. intermedium nakaier as a beauty food. The contents of phenolic compounds in water and 70% ethanol extracts were 16.8 mg/g and 38.1 mg/g, respectively. DPPH free radical scavenging activities of water and ethanol extracts at 100 μg/mL of phenolic concentration were 80.9% and 83.1%, respectively. ABTS radical decolorization activity was 95.0% in water extracts and 95.8% in ethanol extracts at 200 μg/mL phenolic concentration. Antioxidant protection factor (PF) was determined to 2.43 and 2.45 PF in water extracts and ethanol extracts at 100 μg/mL phenolic concentration. TBARs of water and ethanol extracts were 89.9% and 89.3% each at 200 μg/mL phenolic concentration. The inhibitory effect of ethanol extracts at 200 μg/mL phenolic concentration on xanthine oxidase was 50.5%. The inhibitory activity of a-glucosidase was 92.6% in ethanol extracts at 200 μg/mL phenolic concentration. As a result, this study will provide valuable information as a functional material with antioxidant activity, inhibitory activities of xanthin oxidase and α-glucosidase.