ANTIOXIDANT ACTIVITY OF THE ASCIDIAN MARINE INVERTEBRATES, DIDEMNUM SP.

  • Berna Elya Center for Natural Product Medicine Studies, Faculty of Pharmacy, Universitas Indonesia, Depok, 16424, Indonesia.
  • Yasman . Center for Natural Product Medicine Studies, Faculty of Pharmacy, Universitas Indonesia, Depok, 16424, Indonesia.
  • Zulfa Edawati Center for Natural Product Medicine Studies, Faculty of Pharmacy, Universitas Indonesia, Depok, 16424, Indonesia.

Abstract

Objective: This study aimed to determine the antioxidant activity of samples of the ascidian Didemnum sp. collected from Seribu Islands, Jakarta.
Methods: Antioxidant activity was tested using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method. Didemnum sp. was extracted into methanol and
then fractionated using n-hexane, ethyl acetate, and water. Fractions with the highest antioxidant activity were further fractionated using accelerated
column chromatography.
Results: The concentration of sample that reduced the DPPH radical by 50% (IC50) in a methanol extract of Didemnum sp. was 105.10 μg/mL. The ethyl
acetate fraction had the highest antioxidant activity (IC50 of 90.804 μg/mL). The most active fraction obtained from accelerated column chromatography
fraction had an IC50 of 86.35 μg/mL. The compounds contained in the most active fractions were alkaloids, saponins, steroids/triterpenoids, and
glycosides.
Conclusion: The methanol extract of the ascidian Didemnum sp. exhibited antioxidant activity. Fractionation of the Didemnum sp. extract showed that
the ethyl acetate fraction had the highest antioxidant activity. Further, fractionation of the ethyl acetate fraction by accelerated column chromatography
showed that fraction VI had the highest antioxidant activity. The most active fraction contained alkaloids, steroids/triterpenoids, saponins, and
glycosides.

Keywords: 1, 1-Diphenyl-2-picrylhydrazyl, Ascidiacea, Didemnum sp., Seribu Islands.

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How to Cite
Elya, B., ., Y., & Edawati, Z. (2018). ANTIOXIDANT ACTIVITY OF THE ASCIDIAN MARINE INVERTEBRATES, DIDEMNUM SP. International Journal of Applied Pharmaceutics, 10(1), 81-86. https://doi.org/10.22159/jap.2018.v10s1.17
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Original Article(s)