Antioxidant activity and hedonic evaluation of melinjo peel with variations of sodium metabisulfite concentration and soaking time

Abstract

Melinjo peel is part of the melinjo plant which contains many compounds that are beneficial for the health of the body. This research was conducted to obtain a treatment that has optimal antioxidant activity and hedonic evaluation from melinjo peel steeping which has been pretreated with sodium metabisulfite in concentrations of 0.2%, 0.4%, and 0.6% with a long soaking time of 20 and 30 minutes. Based on the results of testing the antioxidant activity of steeping melinjo peel, the average value ranged from 37.2%-43.6%. n the hedonic organoleptic test, the concentration of sodium metabisulfite and the length of soaking time were significantly different for color with the highest average value (3.56) and taste with the highest average value (3.16) while the aroma was not significantly different from the average value. the highest average (2.96).The best treatment was the concentration of sodium metabisulfite 0.2%, immersion time of 20 minutes with antioxidant activity of 37.2%; color 2.92 (clear yellow); Aroma 4.28 (scented melinjo) and taste 3.96 (slightly taste melinjo peel).