Anti-Aging Properties of Temulawak Extract (Curcuma xanthorrhiza L.) by In Vitro Assay

Abstract

Highlights:1. Elastase, hyaluronidase, and tyrosinase can all be inhibited by temulawak extract.2. Temulawak extract has strong anti-aging ability and can be used as a candidate for cosmetic applications. AbstractThe process of aging is the gradual loss of a tissue's capacity to heal and maintain normal or physiological form and function. Elastase, hyaluronidase, and tyrosinase are the enzymes that contribute to skin aging. The anti-aging effect is connected to the inhibition of these enzymes' activity. Many medicinal plants with active metabolite have been utilized extensively to treat aging. Active compounds of temulawak (Curcuma xanthorrhiza L.) such as phenolic, curcuminoid and xanthorrhizol have potential as antiaging. This study aims to determine whether temulawak extract (TE), a potential candidate for cosmeceutical agent, has anti-aging characteristics by inhibiting the elastase, hyaluronidase, and tyrosinase enzymes. TE was processedxby PT FAST. Stock solution of TE was made by dissolving 20 mg of extract with 1 ml of DMSO 100%, the stock solution was then diluted to achieve the concentrations level 31.25 - 1000 μg/ml working solution of TE. The antiaging activity assays were carried out at PT Aretha Medika Utama. In vitro antiaging assay of TE includes elastase, hyaluronidase, and tyrosinase enzyme inhibition at 7 level of various concentrations of 2.08-66.67 μg/ml for anti-elastase assay, 5.21-166.67 μg/ml for anti-hyaluronidase assay, and 3.125-100 μg/ml for anti-tyrosinase assay with three replications. SPSS software was used to conduct the statistical analysis (p<0,05 is considered significant). TE exhibited highest inhibition percentage of 82.72%, 89.41%, and 94.17% for anti-tyrosinase, anti-elastase, and anti-hyaluronidase, respectively. The median inhibitory concentration (IC50) for elastase inhibitory activity was 10.66 μg/ml, hyaluronidase 70.39 μg/ml, and tyrosinase 55.87 μg/ml. According to this study, TE can be used as cosmeceu