Abstract
Identification of cyclopropyl fatty acids in walnut oil. GC/MS method was developed for the determination of eight cyclopropyl fatty acids in walnut (Juglans regia) oil. Monocyclopropane acids: methyl 9-cyclopropyl-nonanoate, 6,7-methylene-, 8,9-methylene-, 9,10-methylene-, 11,12-methylene octadecanoates, and dicyclic acid - methyl 9,10,12,13-dimethylene octadecanoate, tricyclic acid - methyl 9,10,12,13,15,16-trimethylene octadecanoate, and unsaturated - methyl 2-octylcyclopropene-1-octanoate were detected in walnut oil by GC-MS and their mass spectra studied. Four cyclic fatty acids were identified for the fist time in seed oils. Eight cyclopropyl fatty acids were detected in the Mediterranean nuts for the first time.
Highlights
Cyclopropenoid fatty acids (CPFA) are found in at least two phylogenetically distant groups of plants belonging to families: Bombacaceae, Malvaceae, Sterculiaceae[1,2,3,4], Leguminosae[5], and Rannunculaceae[6]
In the diene and triene derivatives, respectively, the double bonds are interrupted by a methylene group. Typical members incorporating these structure types are palmitic, stearic, palmitoleic, oleic, linoleic, and linolenic acid. They are best known as components of seed oils, CPFA do occur in vegetative plant parts[6,7,8,9,10]
The concentration of CPFA increased during the experiment, and reached 5.57 % of total fatty acids (Table 1)
Summary
Cyclopropenoid fatty acids (CPFA) are found in at least two phylogenetically distant groups of plants belonging to families: Bombacaceae, Malvaceae, Sterculiaceae[1,2,3,4], Leguminosae[5], and Rannunculaceae[6]. In the diene and triene derivatives, respectively, the double bonds are interrupted by a methylene group. Typical members incorporating these structure types are palmitic, stearic, palmitoleic, oleic, linoleic, and linolenic acid. They are best known as components of seed oils, CPFA do occur in vegetative plant parts[6,7,8,9,10]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
