Abstract
The use of antioxidants from natural ingredients has been carried out research to test the antioxidant activity of Terong Belanda (Solanum betaceum Cav.) peels. Flavonoids contained in the peels of Terong Belanda (Solanum betaceum Cav.). Natural antioxidants could be inhibit the formation of free radicals in the body. Free radicals that too much in the body would be oxidative stress, thus requiried an antioxidant to inhibit it. This purpose of research to determine the antioxidant activity of flavonoid compounds from Terong Belanda (Solanum betaceum Cav.) peels by IC50 value. The method of ethanolic extract of Terong Belanda (Solanum betaceum Cav.) peels by maceration for 1x24 hours with 70% ethanol solvent. The filtrate obtained was then evaporated with waterbath until thick extract was obtained and continued for antioxidant testing. The antioxidant power in this extract determined by the radical capture test of 2,2-diphenyl-1-picrylhydrazyl (DPPH) used UV-Vis spectrophotometry with a wavelength of 517 nm. The results showed positive from Terong Belanda (Solanum betaceum Cav.) peels contained flavonoids with an average value of IC50 45,14 ppm, while vitamin C value of IC50 4,730 ppm both of showed very strong antioxidants.
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