Anti-wrinkle and Antioxidant Activity of the Extract of Albizzia julibrissin Leaves

Abstract

In the current study, extract from the leaves of Albizzia julibrissin was prepared using either water (ALW) or 80% ethanol (ALE). The total flavonoid and polyphenol compound contents, the anti-wrinkle and whitening effects, and the antioxidant activities of the organic solvent fractions from the extracts were investigated. The total flavonoid and polyphenol compound contents of ALE were 99.40 mg/g and 154.32 mg/g, respectively. The inhibition of xanthine oxidase found for ALW and ALE at 2.0 mg/mL were both over 96%, and there were no significant differences in ascorbic acid. At a concentration of 2,000 μg/mL, the levels of elastase and collagenase inhibition underlying the anti-wrinkle effect of ALW were 23.46% and 48.23%, respectively. The level of tyrosinase inhibition responsible for whitening activity was 21.72% in ALE. Additionally, the nitrite scavenging ability of ALE at pH 1.2, was 78.03% and the SC50 was calculated at 578.78 μg/mL. The superoxide dismutase-like activity of ALE at 2.0 mg/mL was 28.97%, and the 1,1diphenyl-2-picrylhydrazyl radical activity of ALE was 95.94%. Furthermore, the SC50 values for ALW and ALE were 118.68 μg/mL and 81.98 μg/mL, respectively. These results suggested that the extract from the leaves of A. julibrissin may be considered as a potential resource for the development of functional cosmetic materials.