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    Biological activity of two red algae, Gracilaria salicornia and Hypnea flagelliformis from Persian Gulf.

    S. Saeidnia1★, A. R. Gohari1, A. R. Shahverdi2, P. Permeh2, M. Nasiri2, K. Mollazadeh2, F. Farahani4★ Corresponding author

    1. 1Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
    2. 2Department of Pharmaceutical Biotechnology and Pharmaceutical Biotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
    3. 3Department of Marine Science and Technology, Science and Research Isalmic Azad University, Tehran, Iran.
    4. 4Department of Sea Biology, Iranian Academic Center for Education, Culture and Research, Tarbiat Moallem Branch, Tehran, Iran.

    CORRESPONDENCE

    S. Saeidnia

    Dr. Soodabeh Saeidnia:

    saeidnia_s@tums.ac.ir

    Received: 16-09-2009; Revised: 23-09-2009; Accepted: 05-10-2009.

    Volume 1, Issue 6 · pp. 428–430 · PUBLISHED Nov-Dec 2009 · DOI:

    View on Pharmacogn. Res. original site ↗

    ABSTRACT

    Among marine organisms, algae are a large and diverse group of organisms from which a wide range of secondary metabolites have been isolated. A number of these compounds possess biological activity. In this study, we aim to evaluate the cytotoxic, antibacterial and antifungal activity of two red algae, Gracilaria salicornia and Hypnea flagelliformis, collected from Persian Gulf. Ethyl acetate extracts of both algae showed a potent cytotoxic effect against Artemia salina nauplii (LC50 = 3 and 4 μg.ml−1, respectively). Aqueous methanol (50%) extracts were also effective. None of the methanol and aqueous methanol extracts of the algae showed antifungal and antibacterial activity against Staphylococcus aureus, Escherichia coli, Candida albicans and Aspergillus niger by the Broth-dilution method. Only the ethyl acetate extracts exhibited antibacterial activity (MIC = 2 μg.ml−1) on S. aureus. In conclusion, G. salicornia and H. flagelliformis could be a promising source of cytotoxic components.

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      Saeidnia, S., Gohari, A. R., Shahverdi, A. R., Permeh, P., Nasiri, M., Mollazadeh, K., & Farahani, F. (2009). Biological activity of two red algae, Gracilaria salicornia and Hypnea flagelliformis from Persian Gulf.. Pharmacognosy Research, 1(6), 428–430.