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KMID : 0379120070350020096
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Korean Journal of Mycology
2007 Volume.35 No. 2 p.96 ~ p.100
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Screening of GLA (r-Linolenic Acid) from Fungi by Gas Chromatography and Mass Spectroscopy
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Kim Jung-Bong
Cho Kang-Jin
Hong Seung-Beom
Kim Kyung-Hwan
Kim Sam-Sun
Park Jong-Sug
Lee Jong-Yeoul
Bae Shin-Chul
Lee Dong-Jin
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Abstract
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In order to select acid (GLA)-producing fungi, a total of forty-four strains of 4 genera such as Phytophthora, Pythium, Mucor and Rhizopus were obtained from Koran Agricultural Culture Collection (KACC) and then analysed by using GC-FID and GC-MS. GLA was detected on 39 fungal strains, and the highest rate of GLA was found as 24.8% of total fatty acids on Mucor hiemalis f. sp. hiemalis KACC 40264. Total GLA content of Zygomycota was comparatively high - Mucor (14.2%) and Rhizopus (14.3%), whereas that of Oomycetes was low - Phytophthora (3.3%) and Pythium (3.0%). Moreover, total fatty acids of the Zygomycota fungi such as Mucor (15.4 mg/100 ml) and Rhizopus (7.1 mg/100 ml) were higher compared with the Oomycetes such as Phytophthora (2.6 mg/100 ml) and Pythium (4.5 mg/100 ml). Thus, two genera such as Mucor and Rhizopus have higher potential as an useful microbial resource. The total fatty acid content varies even within the strains of the same genus e.g. Mucor. M. blumbeus KACC 40935 showed the highest values on productivity (18.2%) of GLA and total fatty acid contents (50.8 mg/100 ml liquid medium).
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KEYWORD
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Mucor, Phytophthora, Pythium, Rhizopus
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