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Free and bound fatty acid oxidation products in archaeological ceramic vessels

Regert, M., Bland, H. A., Dudd, S. N., Bergen, P. F. V., Evershed, R. P.·1998·Proceedings of the Royal Society of London. Series B: Biological Sciences
DOI 10.1098/rspb.1998.0536
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Abstract

While oxidation products of unsaturated fatty acids, for example dicarboxylic acids (hereafter diacids), must form during the use of unglazed ceramic vessels for the processing of animal and plant products, such components have never been observed during studies of absorbed lipids. Their absence from the extractable lipid fraction is presumed to be the result of their loss from potsherds through groundwater leaching. Lipid oxidation products including short–chain dicarboxylic acids, ω–hydroxy acids and longer–chain hydroxy and dihydroxy acids have now been observed as components probably covalently bound into solvent insoluble residues of potsherds recovered from waterlogged deposits. These components were only revealed following alkaline treatment of the insoluble residues. A similar mixture of diacids was observed in high abundance in the free lipid fraction of vessels recovered from an exceptionally arid deposit where groundwater leaching would never have occurred. These results confirm the formation of oxidation and probable polymerization products of unsaturated fatty acids during vessel use and burial.

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Research works printed but not linked: 28

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Metadata

Authors
Regert, M., Bland, H. A., Dudd, S. N., Bergen, P. F. V., & Evershed, R. P.
Affiliations
Organic Geochemistry Unit, School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK
Venue
Proceedings of the Royal Society of London. Series B: Biological Sciences
Publisher
The Royal Society
Published
1998-10-22
Volume
265
Issue
1409
Pages
2027-2032
ISSN
  • 0962-8452
  • 1471-2954
DOI
10.1098/rspb.1998.0536
Cited by
168
References
0
Language
en

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