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Lipids of the tail gland, body and muzzle fur of the Red Fox, Vulpes Vulpes

Citation

McLean, S and Davies, NW and Nichols, DS, Lipids of the tail gland, body and muzzle fur of the Red Fox, Vulpes Vulpes, Lipids, 52 pp. 599-617. ISSN 0024-4201 (2017) [Refereed Article]

Copyright Statement

Copyright 2017 AOCS

DOI: doi:10.1007/s11745-017-4270-1

Abstract

The tail gland of the red fox (Vulpes vulpes) secretes lipids containing volatile terpenes used in social communication. We have analysed lipids extracted from fur of the tail gland, body (fanks) and muzzle of foxes. GC–MS showed a novel group of iso-valerate and tiglate monoesters of alkane-1,2-diols (C18:0–22:0). There was also a larger group of Type II diesters in which a second, longer chain, fatty acid (FA) was attached to the free alcohol group. LC–MS showed the full range of diol diesters, mostly C36:0–50:0, with smaller amounts of the corresponding mono-unsaturated tiglate esters. An additional group of diesters with higher MW (C49:0–62:0) containing two long-chain FA was present in the lipids of body and muzzle fur. After saponifcation and GC–MS, 98 fatty acids were characterized as their methyl esters. Apart from the C5 FA, most were saturated n-, iso-, anteiso- or other methyl-branched FA (C12:0–28:0) whose structures were determined by a combination of their mass spectra and Kovats retention indices. Several FA have not previously been found in nature or in vertebrates. Thirty-four alkane- 1,2-diols were found as their TMS derivatives, mostly n-, iso- or anteiso-isomers of C16:0–25:0. The tail gland had the greatest amount of wax esters, from a greater variety of FA and diols, but lacked the esters with two long-chain FA. These fndings show that fox skin lipids comprise monoand di-esters of alkane-1,2-diols, and exhibit enormous complexity due to the diversity of their constituent FA, diols and the many possible isomers of their esters.

Item Details

Item Type:Refereed Article
Keywords:Red fox, lipids, mass spectrometry, GC, HPLC, fatty acids, fatty alcohols, waxes
Research Division:Biological Sciences
Research Group:Biochemistry and Cell Biology
Research Field:Analytical Biochemistry
Objective Division:Environment
Objective Group:Control of Pests, Diseases and Exotic Species
Objective Field:Control of Pests, Diseases and Exotic Species at Regional or Larger Scales
Author:McLean, S (Professor Stuart McLean)
Author:Davies, NW (Associate Professor Noel Davies)
Author:Nichols, DS (Dr David Nichols)
ID Code:118129
Year Published:2017
Deposited By:Pharmacy
Deposited On:2017-07-05
Last Modified:2018-01-09
Downloads:0

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