Molecular Species of Free Ceramides in Aspergillus oryzae |
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| Authors: | Masao Ohnishi Yasuhiko Fujino |
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| Institution: | Department of Agricultural Chemistry, Obihiro University, Obihiro, Hokkaido |
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| Abstract: | Free ceramides isolated from A. oryzae were fractionationed into three groups by thin-layer chromatography on silica gel G according to degree of hydroxylation of the molecules. Each group was converted to trimethylsilyl ether derivatives, which were analyzed by gas-liquid chromatography-mass spectrometry for the structure of the molecular species. As a result, the representative molecular species of ceramides were characterized as N-lignoceroyl-phytosphingosine (1%), N-2-hydroxylignoceroyl-phytosphingosine (31%) and N-2,3-dihydroxylignoceroyl-phytosphingosine (31%). |
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| Keywords: | Dasineura gleditchiae honey locust gall midge hydrolytic kinetic resolution 1-methyl-7-hexadecenyl acetate pheromone |
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