Computer Science
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988gecoa..52.2425d&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 52, Issue 10, pp.2425-2431
Computer Science
1
Scientific paper
The low molecular weight hydrolysis products of the reaction between collagenase and the HCl insoluble organic fraction from modern and well-preserved prehistoric bones have the same stable carbon and nitrogen isotopic compositions and amino acid composition as "collagen" extracted by dissolution in warm dilute acid. The hydrolysis products produced using the collagenase method from some poorly preserved fossil bones have the same amino acid composition as the products produced from modern bones, even though the "collagen" extracted from these bones by the conventional solubility method bears no similarity to modern collagen either in terms of amino acid or isotopic composition. These observations suggest that collagenase can possibly be used to purify a fraction from such poorly preserved prehistoric bones that retains its in vivo isotope ratios, thereby permitting isotopic paleodietary reconstruction for bones that cannot be studied with currently available techniques.
Deniro Michael J.
Weiner Stephen
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