Characterisation of organic residues in pottery vessels of the Roman age from Antinoe (Egypt)

Colombini, Maria Perla; Giachi, G.; Modugno, Francesca; Ribechini, Erika

doi:10.1016/j.microc.2004.05.004

Cited by 132 publications

(89 citation statements)

References 23 publications

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“…However, the two -CH 2 -stretching bands are far too sharp and intense compared to pure starch and in addition to this, the two small bands around 1511 cm −1 do not belong to starch. This indicates that the extracted starch contains some amount of waxy material or a resin containing aromatic compounds (Edwards & Falk, 1997;Colombini et al, 2005;Regert et al, 2006). The spectrum of the extracted wax is in accordance with beeswax references, in particular with respect to the pattern of the fingerprint area, even though several of the features are also present in other waxes like carnauba wax, candelilla wax, and Japan wax (Dubis et al, 1999;Regert et al, 2006;LattuatiDerieux et al, 2009).…”

Section: Atr-ftir Analyses Of Wax Samplessupporting

confidence: 64%

“…In addition to this an infrared absorption band around 1511 cm −1 which is observed in both models is missing in the AMCN wax mixture. This band is assigned to aromatic compounds (Colombini et al, 2005;Regert et al, 2006). The models Little standing horse and The equestrian statue of Christian IX showed identical ATR-FTIR spectra which were different from the wax mixture described by AMCN.…”

Section: Atr-ftir Analyses Of Wax Samplesmentioning

confidence: 81%

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Investigation and conservation of Anne Marie Carl-Nielsen's wax models

Gramtorp

Botfeldt

Glastrup

et al. 2014

Studies in Conservation

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The Danish sculptor Anne Marie Carl-Nielsen (1863-1945 often prepared three-dimensional models in wax before producing her works of art. The Carl Nielsen Museum in Odense keeps a unique collection of around 200 of the artist's fragile wax models. In 2008 the entire collection was examined, documented, X-ray radiographed, photographed, and conserved. Analyses of five figurines by attenuated total reflectanceFourier transform infrared spectroscopy, optical microscopy, and scanning electron microscopy-energy dispersive X-ray spectroscopy showed two different kinds of wax mixtures, one containing beeswax and potato or maize starch as filler, and the other consisting of gypsum, zinc stearate, and a greasy substance. During the examination a specific deterioration phenomenon was noticed in the areas where the wax models had been strengthened with internal metal armatures. A chemical reaction between the wax mixture and the copper containing armature has caused an intense greenish colouring of the wax as well as creating a soft and almost liquid consistency and formation of copper(II) carboxylate salts. Based on an original recipe from Anne Marie Carl-Nielsen, a replica of one of the wax mixtures was produced and examined with respect to its infrared spectrum and its modelling properties.

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Section: Atr-ftir Analyses Of Wax Samplessupporting

confidence: 64%

Section: Atr-ftir Analyses Of Wax Samplesmentioning

confidence: 81%

Investigation and conservation of Anne Marie Carl-Nielsen's wax models

Gramtorp

Botfeldt

Glastrup

et al. 2014

Studies in Conservation

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“…exudates (Mills & White, 1977). These primary resin acids are, however, rarely found in archaeological materials due to natural processes such as oxidation, with aged Pinaceae resins characterized by increased levels of DHA, didehydroabietic acid (DDHA), 7ODHA, and neutral abietadienes (Colombini et al, 2000(Colombini et al, , 2005. Thermal degradation also leads to dehydrogenation, decarboxylation, and a higher degree of aromatization of the cyclic compounds present so a mixture of DHA acid and various neutral compounds is again produced (Egenberg et al, 2002) with retene the final stable product of Pinaceae resin tars (Robinson et al, 1987) and significant levels of methyl dehydroabietate (MDHA) indicative of the pyrolysis of resinous Pinaceae woods (Hjulström et al, 2006).…”

Section: Resinous Plant Exudatesmentioning

confidence: 99%

Organic residue analysis of Egyptian votive mummies and their research potential

Brettell

Martin

Atherton-Woolham

et al. 2016

Studies in Conservation

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Vast numbers of votive mummies were produced in Egypt during the Late Pharaonic, Ptolemaic, and Roman periods. Although millions remain in situ, many were removed and have ultimately entered museum collections around the world. There they have often languished as uncomfortable reminders of antiquarian practices with little information available to enhance their value as artefacts worthy of conservation or display. A multi-disciplinary research project, based at the University of Manchester, is currently redressing these issues. One recent aspect of this work has been the characterization of natural products employed in the mummification of votive bundles. Using gas chromatography-mass spectrometry and the well-established biomarker approach, analysis of 24 samples from 17 mummy bundles has demonstrated the presence of oils/fats, natural waxes, petroleum products, resinous exudates, and essential oils. These results confirm the range of organic materials employed in embalming and augment our understanding of the treatment of votives. In this first systematic initiative of its kind, initial findings point to possible trends in body treatment practices in relation to chronology, geography, and changes in ideology which will be investigated as the study progresses. Detailed knowledge of the substances used on individual bundles has also served to enhance their value as display items and aid in their conservation.

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“…In archaeology, palaeochemotaxonomy is used to trace dietary habits and to understand the use of natural products in craft and funeral rites (e.g. Colombini et al, 2005;Romanus et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Determination of the molecular signature of fossil conifers by experimental palaeochemotaxonomy – Part 1: The Araucariaceae family

Hautevelle

Michels

2013

Biogeosciences

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Twelve species of the conifer family Araucariaceae, including Araucaria (6 species), Agathis (3 species) and Wollemia (1 species) genera, were submitted to artificial maturation by confined pyrolysis. The aim of these experiments is to transform the biomolecules synthesized by these species into their homologous geomolecules in laboratory conditions. Determination of the diagenetic molecular signatures of Araucariaceae through experimentation on extant representatives allows us to complete our knowledge in botanical palaeochemotaxonomy. Such knowledge is relevant to palaeoenvironmental, environmental and archaeology purposes. All artificially diagenetic species of Araucariaceae are firstly characterized by a predominance of saturated tetracyclic diterpenoids including ent-beyerane, phyllocladanes and ent-kauranes. Moreover, Araucaria genus shows a high relative abundance of bicyclic sesquiterpenoids, particularly the cadalane-type compounds accompanied by those of eudesmane and bisabolane types as well as chamazulene and pentamethyl-dihydroindenes. Diterpenoids are of labdane, isopimarane and abietane types (essentially derived from abietanoic acids) as well as isohexyl alkylaromatic hydrocarbons. Compared to the tetracyclic diterpenoids, these compounds show a relatively lower abundance, reaching trace levels in the case of saturated abietanes. Distributions of sesquiterpenoids and diterpenoids of Agathis show some similarities to that of Araucaria, with the exception of one species, in which the tetracyclic compounds are absent and the abietane type (essentially derived from abietanoic acids) predominant. High similarities between the Wollemia and Araucaria genera are observed. Both are characterized by some high relative abundance of tetracyclic compounds with no predominance of other specific diterpenoids

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Characterisation of organic residues in pottery vessels of the Roman age from Antinoe (Egypt)

Cited by 132 publications

References 23 publications

Investigation and conservation of Anne Marie Carl-Nielsen's wax models

Investigation and conservation of Anne Marie Carl-Nielsen's wax models

Organic residue analysis of Egyptian votive mummies and their research potential

Determination of the molecular signature of fossil conifers by experimental palaeochemotaxonomy – Part 1: The Araucariaceae family

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