Background :Glycine max (L.) Merrill or known as soybean contains nutrients, which have been proved as a healthy food that provides huge advantages, included antioxidant properties. Several types of soybeans that are famous in Asia are yellow soybean and edamame. So far, there is no research that directly compares the antioxidant activities difference between yellow soybean and edamame seeds.
Objective : To compare the antioxidant activities of ethanolextracts of yellow soybean and edamame seeds by using various ethanol concentrations; and ascorbic acid as comparator.
Method : In vitro experimental study by comparing antioxidant activities of ethanol (70% and 90%) extracts of yellow soybean and edamame seeds using iodometric
titration which was preceded by phytochemical screenings included phenol, flavonoid, alkaloid, saponin and terpenoid; and 3 ppm, 6 ppm, 12 ppm, and 24 ppm ascorbic acids as comparators.
Result : Ethanolextracts of yellow soybean and edamame seeds shows antioxidant activities. Statistically, there is difference between antioxidant activities of ethanol extracts of yellow soybean and edamame seeds (p = 0,000 and 95% confidence interval does not contain zero).
Conclusion : There is very significant difference between antioxidant activities of ethanol extracts of yellow soybean and edamame seeds. |