Assesing use and suitability of scanning electron microscopy in the analysis of micro remains in dental calculus
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Assesing use and suitability of scanning electron microscopy in the analysis of micro remains in dental calculus

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Assesing use and suitability of scanning electron microscopy in the analysis of micro remains in dental calculus

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dc.contributor.author Power, Robert C.
dc.contributor.author Salazar García, Domingo Carlos
dc.contributor.author Wittig Roman M.
dc.contributor.author Henry, Amanda G.
dc.date.accessioned 2015-02-20T09:24:30Z
dc.date.available 2015-02-20T09:24:30Z
dc.date.issued 2014
dc.identifier.uri http://hdl.handle.net/10550/42075
dc.description.abstract Dental calculus is increasingly recognized as a major reservoir of dietary information. Palaeodietary studies using plant and animal micro remains (e.g. phytoliths, pollen, sponge spicules, and starch grains) trapped in calculus have the potential to revise our knowledge of the dietary role of plants in past populations. The conventional methods used to isolate and identify these micro remains rely on removing them from their microenvironment in the calculus, thus the microenvironment that traps and preserves micro remains is not understood. By using scanning electron microscopy and energy dispersive X-ray spectroscopy (SEMeEDX) on modern chimpanzee calculus from the Taï Forest, Côte d¿Ivoire, and human calculus from the Chalcolithic site of Camino del Molino, Spain, we present the first reported observations on characteristics of the matrix setting that are conducive to the survival of starch in dental calculus. We also assess the potential for SEMeEDX to detect starch and differentiate it from structurally and molecularly similar substrates. We demonstrate that SEMeEDX may offer a nondestructive technique for studying micro remains in certain contexts. Finally, we compare traditional optical analytical techniques (OM) with less invasive electron microscopy. The results indicate that SEM-EDX and OM are both effective for observing micro remains in calculus, but differ in their analytical resolution to identify different micro remains, and we therefore recommend a sequential use of both techniques.
dc.language.iso eng
dc.relation.ispartof Journal of Archaeological Science, 2014, num. 49, p. 160-169
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Power, RobertC. Salazar García, Domingo Carlos Wittig RomanM. Henry Amanda G. 2014 Assesing use and suitability of scanning electron microscopy in the analysis of micro remains in dental calculus Journal of Archaeological Science 49 160 169
dc.subject Restes humanes (Arqueologia)
dc.title Assesing use and suitability of scanning electron microscopy in the analysis of micro remains in dental calculus
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-02-20T09:24:30Z
dc.identifier.doi http://dx.doi.org/10.1016/j.jas.2014.04.016
dc.identifier.idgrec 101658

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