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Biochemical and physiological studies of certain ticks (Ixodoidea): Isolation and partial identification of a new fatty acid in eggs of Dermacentor andersoni Stiles (Ixodidae)
Author(s) -
Shimi Ibrahim R.,
Maroun Nabila A.,
Kamel Mamdouh Y.,
Ragheb Hemmat H.,
Badran Mohga M.
Publication year - 1974
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02532053
Subject(s) - ixodidae , fatty acid , biology , chromatography , gas chromatography , tick , biochemistry , chemistry , ecology
Abstract Gas liquid chromatographic analysis of the fatty acid methyl esters from eggs of Dermacentor andersoni Stiles (Ixodidae) revealed the presence of significant quantities (15% total fatty acids) of an unidentified component with a retention time between C 18∶3 −C 22∶0 fatty acids. Smaller amounts of the unidentified component (ca. 5% total fatty acid) also were detected in host rabbit serum. Purified, the unidentified component's methyl ester collected from the tick eggs by preparative gas liquid chromatography was partially identified and characterized by chemical and spectroscopic analyses. The evidence suggests that the unidentified component is a methyl branched C 15 tricarboxylic acid containing two vicinal carboxylic acid groups. Biosynthesis of the unidentified component by the tick is under investigation.