Gel Formulation of Jamblang Leaf Extract (Syzygium cumini L) Skeel and Antioxidant Activity

Abstract

In this paper we reported gel formulation that containing Jamblang Leaf extract (Syzygium cumini L) and activity test as antioxidant. The Jamblang Leaf plant contained polyphenols compound which function as antioxidants. The purpose of this study was to determine the antioxidant activity of gel formulation that containing jamblang leaf extract. Extraction of Jamblang Leaf were formulated with three varation of concentration and gel basis as negative controls. The gel formulation were evaluated for organoleptic observations, homogeneity, pH, viscosity, dispersion test, adhesion test, accelerated stability test for 4 weeks storage, and measurement of antioxidant activity was carried out using the DPPH method with wavelength of 519 nm. The results of gel formulation IC50 value shows the ability of a substance to inhibit 50% DPPH radical of 47.735 ppm. The gel extract of Jamblang Leaf has a very strong antioxidant activity.