Analyse de baumes issus de tête momifiée (Thèbes)

Ménager, Matthieu; Perraud, Annie; Vieillescazes, Catherine

doi:10.4000/archeosciences.3950

Cited by 7 publications

(9 citation statements)

References 30 publications

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“…Finally, those related to the aromatic C=C stretching appears at 1606, 1514 and 1496 cm −1 (the latter probably belonging to dehydroabietic acid). All these changes are also observed in other aged Pinus resin IR spectra found in the literature [54,[57][58][59].…”

Section: Ancient Resinssupporting

confidence: 68%

Ageing of resin from Pinus species assessed by infrared spectroscopy

et al. 2016

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Resins obtained from Pinus genus species have been widely used in very different fields throughout history. As soon as they are secreted molecular changes start altering their chemical, mechanical and optical properties. The ageing processes are complex and chemical and structural changes associated to resin degradation are not yet fully known. Many questions still remain open, for instance changes happening in pimaranes, one of the two diterpenoid constituents of the resin.A systematic study of the ageing process of Pinus resins is done through of Fourier Transform Infrared Spectroscopy (FTIR) using chemical standards and complementing obtained results with Gas Chromatography coupled to Mass Spectrometry (GC/MS) analysis when necessary. Moreover, long-term degradation processes are also investigated through the analysis of a selection of dated historical resins. The study overcomes the limitations of GC/MS and brings new information about the reactions and interactions between molecules during Pinus resin ageing process, providing information about bonds affected and unaffected and can be used as specific markers of the degradation and of the resins themselves.

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Section: Ancient Resinssupporting

confidence: 68%

Ageing of resin from Pinus species assessed by infrared spectroscopy

et al. 2016

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“…Other bands of lower intensity could also be observed at respectively 1480, 1420, 931, 867 and 809 cm − 1 . All of these bands correspond to the vibrations of the C-H aromatic bonds [8]. These bonds were characterized by numerous bands depending on the nature of the C-H.…”

Section: Resultsmentioning

confidence: 99%

“…Altered compounds can play an important part in the identification of plant species. The molecular composition of samples can provide information on the nature of the constituents, on the state of conservation of the sample and on the treatment undergone by the material during its preparation and/or the preparation of the balms [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a characterization method of Egyptian human mummy balms by chemometric treatments of infrared data

Mezzatesta

Dupuy

Mathe

2021

Talanta

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“…Compounds of alteration can play an important part in identifying plant species. The molecular composition of samples can provide information on the nature of the constituents, the state of conservation of the sample and the treatment undergone by the material during the preparation and/or the formation of balms [18–20]. To identify their composition, the most widespread analytical method described in the literature is Gas Chromatography coupled to Mass Spectrometry (GC–MS) [21–28] because it allows a large number of organic compounds from a complex matrix, even in traces, to be separated and identified.…”

Section: Introductionmentioning

confidence: 99%

Analysis of balms taken from Egyptian human mummies using solid‐phase extraction and gas chromatography–mass spectrometry

Mezzatesta

Perraud²,

Vieillescazes

et al. 2020

J of Separation Science

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The aim of this paper is to establish a protocol by solid‐phase extraction–gas chromatography–mass spectrometry leading to a wide and fine qualitative chemical characterization of the several natural substances present in human mummies’ balms, using a minimal quantity of samples. In this study, nine samples were analyzed from mummies dating back from the Third Intermediate Period to the Roman Period, and were provided by the Confluences Museum (Lyon, France). Using solid‐phase extraction, three fractions were examined in this protocol. The first one, eluted with hexane, concerned chemical families of hydrocarbons of bitumen. The second, eluted with ethanol, enabled terpenic compounds to be characterized and beeswax. The last one, composed of diethyl ether with 2% acetic acid, extracted carboxylic acids with a long aliphatic chain (fatty matter) and glycerides. This study also allowed the characterization of non‐saponified compounds from beeswax to be obtained while excluding the common saponification step. The analyzed mummification balms were shown to contain fatty matter, beeswax, bitumen, and diterpenic resinous material. This one‐pot solid‐phase extraction–gas chromatography–mass spectrometry method was efficient in reducing both the number of analytical steps and the complexity of the archaeological balms subsequently analyzed by gas chromatography–mass spectrometry.

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Analyse de baumes issus de tête momifiée (Thèbes)

Cited by 7 publications

References 30 publications

Ageing of resin from Pinus species assessed by infrared spectroscopy

Ageing of resin from Pinus species assessed by infrared spectroscopy

Evaluation of a characterization method of Egyptian human mummy balms by chemometric treatments of infrared data

Analysis of balms taken from Egyptian human mummies using solid‐phase extraction and gas chromatography–mass spectrometry

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