Phytochemical Composition, Antioxidant Activity, and Bioactive Compound Profiling of Sargassum sp. Ethanol Extract: Potential for Antimalarial Application

Sargassum sp Phytochemical Screening FT-IR Analysis GC-MS Profiling Antioxidant Activity

Authors

  • Eka Sulistianingsih
    eka_sulistianingsih@poltekkes-tjk.ac.id
    Department of Medical Laboratory Technology, Poltekkes Kemenkes Tanjungkarang, Bandar Lampung City, Lampung Province, Indonesia, Indonesia
  • Misbahul Huda Department of Medical Laboratory Technology, Poltekkes Kemenkes Tanjungkarang, Bandar Lampung City, Lampung Province, Indonesia, Indonesia
  • Endah Setyaningrum Department of Medical Laboratory Technology, Poltekkes Kemenkes Tanjungkarang, Bandar Lampung City, Lampung Province, Indonesia and Department of Biology, Faculty of Science and Mathematics, Universitas Lampung, Bandar Lampung City, Lampung Province, Indonesia, Indonesia
  • Budi Setiawan School of Engineering, University of Glasgow, Scotland, United Kingdom, United Kingdom
September 9, 2025
September 30, 2025

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Sargassum sp., a brown macroalga abundant in Indonesia's coastal ecosystems, has garnered attention for its diverse bioactive compounds with pharmacological potential. However, its application as a natural antimalarial and antioxidant agent remains underexplored. This study aimed to investigate the secondary metabolites in ethanol extracts of Sargassum sp. and evaluate their antioxidant and potential antimalarial activities. Ethanol extraction was conducted using the maceration technique, followed by phytochemical screening, FT-IR, and GC-MS analyses to characterize the extract. The results revealed the presence of saponins, terpenoids, tannins, alkaloids, and flavonoids. FT-IR and GC-MS confirmed compounds associated with antioxidant and antimalarial properties. The extract exhibited notable antioxidant activity with an IC₅₀ value of 26.16 ppm. These findings highlight the potential of ethanol-extracted Sargassum sp. as a promising source for the development of safer, resistance-limiting antimalarial and antioxidant agents.

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