Abstract
Colocasia esculenta (C. esculenta) is a widely cultivated plant for consumption and traditional medicine. Recent evidences showed lack studies about the stem of C. esculenta as medicinal agent. Besides, ice cream is a food, which contains milk that play beneficial role as antioxidant. Addition of C. esculenta in ice cream may improve antioxidant activity by its phytochemical compounds. Thus, the aim of this nutritional food study is to determine the antioxidant activity, phytochemical compounds and nutritional minerals. The methods used were done by thin layer chromatography (TLC) test and antioxidant assays characterized using 2,2-diphenyl-1-picrylhydrazyl (DPPH). The nutritional minerals was also measured on the study. The results showed the extract had antioxidant activity that measured at 675.283pg/ml. The stem extract of C. esculenta positively contained Flavonoid, Terpenoid, Saponin, and Steroid based on TLC assays. Based on nutritional minerals test, C. esculenta contained vitamin C, vitamin E, Potassium, and % Calcium. Flavonoids, Terpenoid, Saponin, and steroid had been proved as potent treatment for oxidative stress. Vitamin C and E also had evidence as antioxidant properties. Activity of antioxidant enzymes were improved in Potassium and Calcium treatment studies. Therefore, the addition of C. esculenta in ice cream could improve the activity of antioxidant.
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