title: The occurrence of furan fatty acids in Isochrysis sp. and Phaeodactylum tricornutum.
abstract: Two algae species with a fundamentally different fatty acid composition were investigated for their furan fatty acid (F-acid) content. Isochrysis sp. contains different F-acids with a pentyl side chain in alpha'-position of the furan ring. In consideration of its fatty acid composition which is predominated by compounds with a C-18 chain, this result supports the assumption that pentyl-F-acids derive from linoleic acid. In contrast, only F-acids with propyl side chain were found in Phaeodactylum tricornutum. The low content of C-18 fatty acids in this diatomae contradicts the previous hypothesis that linolenic acid is the precursor of propyl-F-acids. But the presence of (n - 4) unsaturated fatty acids with 16 carbon atoms in Phaeodactylum tricornutum suggests that propyl-F-acids are synthesized from 9,12-hexadecadienoic acid in a very similar biogenetic pathway than pentyl-F-acids.
authors.affiliation: Lehrstuhl für Organische Chemie I, Universität Bayreuth, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Batna
authors.forename: J
authors.initials: J
authors.lastname: Scheinkönig
authors.forename: G
authors.initials: G
authors.lastname: Spiteller
mesh_terms: D056890:Eukaryota / Q000737:chemistry*; D005231:Fatty Acids, Unsaturated / Q000032:analysis* / Q000737:chemistry; D005663:Furans / Q000032:analysis*; D019787:Linoleic Acid; D008041:Linoleic Acids; D008042:Linolenic Acids; D013058:Mass Spectrometry; D010080:Oxazoles
chemical_list: D005231:Fatty Acids, Unsaturated; D005663:Furans; D008041:Linoleic Acids; D008042:Linolenic Acids; D010080:Oxazoles; C080021:9,12-hexadecadienoic acid; D019787:Linoleic Acid