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Antimicrobial and cytotoxic activities of Turbinaria conoides (J.Agardh) Kuetz
Shanmugam, S.K.; Kumar, Y.; Yar, K.M.S.; Gupta, V.; De Clercq, E. (2010). Antimicrobial and cytotoxic activities of Turbinaria conoides (J.Agardh) Kuetz. Iranian Journal of Pharmaceutical Research 9(4): 411-416
In: Iranian Journal of Pharmaceutical Research: Tehran. ISSN 1735-0328, more

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Keyword
    Marine
Author keywords
    Brown alga; Turbinaria conoides; Antibacterial; Antifungal; Antiviral;Cytotoxicity

Authors  Top 
  • Shanmugam, S.K.
  • Kumar, Y.
  • Yar, K.M.S.
  • Gupta, V.
  • De Clercq, E., more

Abstract
    Brown alga, Turbinaria conoides was successively extracted with n-hexane, cyclohexane, methanol and ethanol:water (1:1). The extracts were evaluated for antibacterial and antifungal activities by disc diffusion method. Minimal inhibitory concentration was determined for active extracts by broth dilution method. The antiviral activity and cytotoxicity of the extracts were tested in human embryonic lung (HEL) cells (herpes simplex virus-1, herpes simplex virus-2, vaccinia virus, vesicular stomatitis virus and herpes simplex virus-1 TK- KOS ACVr), human epithelial (HeLa) cells (vesicular stomatitis virus and coxsackie virus B4) and Vero cells (parainfluenza-3 virus, reovirus-1, sindbis virus coxsackie virus B4 and puntatoro virus). The results revealed that extracts exhibited cytotoxicity ranged from 20 to >100 μg/mL. Moderate activity was demonstrated by n-hexane and cyclohexane extracts against viruses, whereas methanol and ethanol:water (1:1) extracts were not active. Ethanol:water (1:1) presented neither antibacterial nor antifungal activity against tested organisms. Cyclohexane extract possessed a broad array of antibacterial activity and exhibited remarkable antifungal property. It is noteworthy that minimal inhibitory concentration of cyclohexane extract against Aspergillus niger is comparable with that of clotrimazole. This potentiality demonstrates that it could be used to treat bacterial and fungal infections.

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