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  • Title: Structural analysis of cerebrosides from Aspergillus fungi: the existence of galactosylceramide in A. oryzae.
    Author: Tani Y, Amaishi Y, Funatsu T, Ito M, Itonori S, Hata Y, Ashida H, Yamamoto K.
    Journal: Biotechnol Lett; 2014 Dec; 36(12):2507-13. PubMed ID: 25129050.
    Abstract:
    Glucosylceramide and galactosylceramide were detected in three Aspergillus species: Aspergillus oryzae, Aspergillus sojae and Aspergillus. awamori, using borate-coated TLC. The cerebrosides from A. oryzae were further purified by ion exchange and iatrobeads column chromatographies with or without borate, and determined the composition of sugar, fatty acid and sphingoid base by GC/MS, MALDI-TOF/MS and (1)H-NMR. We identified them as β-glucosylceramide and β-galactosylceramide. The ceramide moiety of both cerebrosides consisted mainly of 2-hydroxystearic acid and either 9-methyl-octadeca-4, 8-sphingadienine or octadeca-4, 8-sphingadienine. To our knowledge, this is the first study to provide evidence for the presence of β-galactosylceramide in A. oryzae.
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