Journal of Chemical and Pharmaceutical Research, 2015, 7(11):190-196

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Antioxidants are compounds that inhibit the oxidation processes and protect cells from the harmful effects of free radicals. Phytochemical and antioxidant activity screening has been done to 31 types of fruits peel extract. Phytochemical screening performed to determine the pharmacological active ingredient such as: alkaloids, steroids and triterpenoid, flavonoids, saponins and phenolic especially those with antioxidant activity. Phytochemical screening performed by standard methods while antioxidant activity using 1-1-diphenyl-2-picrihydrazil (DPPH). Result showed that the chemical compounds of avocado fruit peel extract and mangosteen positive for alkaloids, steroid-triterpenoids, flavonoids, saponins and phenolic. Alkaloid compounds are also found in fruit peel extract of Cytrus hystrix, Carica papaya, Ipomoea batatas L, Annona muricata L, Manihot utilissima, Mangifera odorata and Manilkara zapota. Steroid-triterpenoid compounds also presented in the bark Salacca sumatrana, Mangifera odorata, Alium cepa L and Citrus sinensis L. Flavonoids are also found in Hylocereus polyrhizus , Cytrus hystrix, Ipomoea batatas L, and Citrus sinensis L. Saponins are also found in Carica papaya, Ananas comocus, Ipomoea batatas L , Annona muricata L, Dimocarpus longan, Musa paradisiacal, Manihot utilissima, Musa paradisiacal, Mangifera odorata and Alium cepa L. Phenolics were found in Cytrus hystrix, Annona muricata L, Dimocarpus longan, Solanum betaceum, Mangifera odorata, Citrus aurantifolia , Passiflora edulis, and Citrus sinensis L. From this research it is known that the peel of Persea Americana and Garcinia mangostana contained the highest antioxidant activity.

Kata Kunci: Sumatra fruit peel extract, DPPH, Antioxidant, Phytochemical

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