Chemical Alteration and Use of Beeswax Through Time: Accelerated Ageing Tests and Analysis of Archaeological Samples from Various Environmental Contexts
Identifieur interne : 002329 ( Main/Merge ); précédent : 002328; suivant : 002330Chemical Alteration and Use of Beeswax Through Time: Accelerated Ageing Tests and Analysis of Archaeological Samples from Various Environmental Contexts
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Abstract
In order better to interpret the chemical composition of ancient organic residues and artefacts containing beeswax, the degradation of this raw material was accelerated in the laboratory by controlled heating. During the course of degradation, deposits were condensed above the beeswax. Both degraded beeswax and these deposits were analysed. These experiments definitively proved that n‐alkane depletion is due to a sublimation process that depends on the molecular weight of these hydrocarbons. The formation of benzoic and cinnamic derivatives due to the degradation of flavonoid precursors initially present in beeswax has also been highlighted for the first time. The analysis of samples from Neolithic and Roman periods led to the identification of beeswax characterized by different degradation patterns linked to their environmental context.
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DOI: 10.1111/1475-4754.00036
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<record><TEI><teiHeader><fileDesc><titleStmt><title>Chemical Alteration and Use of Beeswax Through Time: Accelerated Ageing Tests and Analysis of Archaeological Samples from Various Environmental Contexts</title><author><name sortKey="Regert, M" uniqKey="Regert M">M. Regert</name><affiliation wicri:level="1"><mods:affiliation>UMR 171 du CNRS (laboratoire de recherche des musées de France), Centre de Recherche et de Restauration des Musées de France, France</mods:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR 171 du CNRS (laboratoire de recherche des musées de France), Centre de Recherche et de Restauration des Musées de France</wicri:regionArea><wicri:noRegion>Centre de Recherche et de Restauration des Musées de France</wicri:noRegion><wicri:noRegion>Centre de Recherche et de Restauration des Musées de France</wicri:noRegion></affiliation></author><author><name sortKey="Colinart, S" uniqKey="Colinart S">S. Colinart</name><affiliation wicri:level="1"><mods:affiliation>UMR 171 du CNRS (laboratoire de recherche des musées de France), Centre de Recherche et de Restauration des Musées de France, France</mods:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR 171 du CNRS (laboratoire de recherche des musées de France), Centre de Recherche et de Restauration des Musées de France</wicri:regionArea><wicri:noRegion>Centre de Recherche et de Restauration des Musées de France</wicri:noRegion><wicri:noRegion>Centre de Recherche et de Restauration des Musées de France</wicri:noRegion></affiliation></author><author><name sortKey="Degrand, L" uniqKey="Degrand L">L. Degrand</name><affiliation wicri:level="1"><mods:affiliation>UMR 171 du CNRS (laboratoire de recherche des musées de France), Centre de Recherche et de Restauration des Musées de France, France</mods:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR 171 du CNRS (laboratoire de recherche des musées de France), Centre de Recherche et de Restauration des Musées de France</wicri:regionArea><wicri:noRegion>Centre de Recherche et de Restauration des Musées de France</wicri:noRegion><wicri:noRegion>Centre de Recherche et de Restauration des Musées de France</wicri:noRegion></affiliation></author><author><name sortKey="Decavallas, O" uniqKey="Decavallas O">O. Decavallas</name><affiliation wicri:level="1"><mods:affiliation>UMR 171 du CNRS (laboratoire de recherche des musées de France), Centre de Recherche et de Restauration des Musées de France, France</mods:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR 171 du CNRS (laboratoire de recherche des musées de France), Centre de Recherche et de Restauration des Musées de France</wicri:regionArea><wicri:noRegion>Centre de Recherche et de Restauration des Musées de France</wicri:noRegion><wicri:noRegion>Centre de Recherche et de Restauration des Musées de France</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="RBID">ISTEX:897EE519F3DE29AE42E69685E2BFF6E8B7ED5E65</idno><date when="2001">2001</date><idno type="doi">10.1111/1475-4754.00036</idno><idno type="url">https://api.istex.fr/document/897EE519F3DE29AE42E69685E2BFF6E8B7ED5E65/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001A03</idno><idno type="wicri:Area/Istex/Curation">001A03</idno><idno type="wicri:Area/Istex/Checkpoint">001D82</idno><idno type="MainMerge">001D82</idno><idno type="wicri:Area/Main/Merge">002329</idno></publicationStmt><seriesStmt><idno type="ISSN">0003-813X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>BEESWAX</term><term>DEGRADATION EXPERIMENT</term><term>ESTERS</term><term>FAYUM</term><term>FOURIER TRANSFORM INFRARED SPECTROMETRY</term><term>FRANCE</term><term>GAS CHROMATOGRAPHY</term><term>GREECE</term><term>MASS SPECTROMETRY</term><term>NEOLITHIC</term><term>N‐ALKANES</term><term>PHENOLIC COMPOUNDS</term><term>POTTERY</term><term>ROMAN PERIOD</term><term>STRAINER</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="eng">In order better to interpret the chemical composition of ancient organic residues and artefacts containing beeswax, the degradation of this raw material was accelerated in the laboratory by controlled heating. During the course of degradation, deposits were condensed above the beeswax. Both degraded beeswax and these deposits were analysed. These experiments definitively proved that n‐alkane depletion is due to a sublimation process that depends on the molecular weight of these hydrocarbons. The formation of benzoic and cinnamic derivatives due to the degradation of flavonoid precursors initially present in beeswax has also been highlighted for the first time. The analysis of samples from Neolithic and Roman periods led to the identification of beeswax characterized by different degradation patterns linked to their environmental context.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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