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Phytother Res. 2000 Aug;14(5):329-32.

Detection of antifungal activity in Portulaca oleracea by a single-cell bioassay system.

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Natural Products Research Institute, Seoul National University, Korea.


The antifungal activity of Portulaca oleracea extracts against hyphal growth of various fungi was evaluated in real time using an automatic single-cell bioassay system. Target organisms were the filamentous fungi Aspergillus and Trichophyton and the yeast Candida. A colony of test fungi was in contact with the assay medium, or assay medium containing plant extract, in sequence. The antifungal activity of each fraction of P. oleracea was evaluated based on the dynamic hyphal growth response curves of test fungi. A crude sample obtained by EtOAc extract showed a specific and marked activity against dermatophytes of the genera Trichophyton.

[Indexed for MEDLINE]

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