Isolation and identification of antifungal fatty acids from the extract of common purslane (Portulaca oleracea L.)
1986
Park, J.S. (Chungnam National Univ., Taejon (Korea R.)) | Nishimura, S. | Marumo, S. | Katayama, M. (Nagoya Univ., Nagoya (Japan))
Five antifungal substances were isolated from the long-term storaged extract of common purslane, and identified as isobutyric, butyric, isovaleric, valeric and caproic acids belonging to short-chain fatty acids (C4-C6). Each of these fatty acids showed more or less antifungal potency against spore germination and mycelial growth of Alternaria alternata Japanese pear pathotype in vitro. Antifungal potency of each fatty acid against spore germination was greater than that against the mycelial growth. None of these fatty acids completely inhibited the mycelial growth at concentration lower than 200 ppm, while 50 ppm of caproic acid and 200 ppm of valeric acid completely inhibited the spore germination
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