Aspartic acid racemization as a dating tool for dentine: A reality

@article{Torres2014AsparticAR,
  title={Aspartic acid racemization as a dating tool for dentine: A reality},
  author={Trinidad de Torres and Jos{\'e} E. Ortiz and Eva Fern{\'a}ndez and Eduardo Arroyo-Pardo and Rainer Gr{\"u}n and Alfredo P{\'e}rez-Gonz{\'a}lez},
  journal={Quaternary Geochronology},
  year={2014},
  volume={22},
  pages={43-56}
}
3. Easier access to “fossil gelatin” and quality check by amino acid racemization
  • H. Elster
  • Environmental Science, Geography
    Palaeogeography, Palaeoclimatology, Palaeoecology
  • 2019
Amino acid racemization and its relation to geochronology and archaeometry.
TLDR
The age controversy and aftermath of amino acid racemization, current chromatographic methods used in research, mathematical calibration models, and a short synopsis of other dating techniques in geochronology and archaeometry are explained.
Reliability of aspartic acid racemization rate for chronological age estimation—a systematic review and meta-analysis
TLDR
It is safe to believe that the premolar tooth is the best for this type of age estimation, and it is recommended to develop population-specific mathematical equations to improve the accuracy of this age estimation approach.
[Comparative assessment of technical approaches to estimating the biological age of a person using chromatographic analysis of dentin].
TLDR
A comparative evaluation of the data made it possible to make an assumption about gas chromatography using mass selective or flame ionization detectors as a method of choice for studying the amino acid composition of tooth dense tissues.
Imanolen Arrobia: A New Late Pleistocene Carnivore Den from the North of the Iberian Peninsula (Deba, Spain)
Abstract. A taphonomic and systematic study of an assemblage of large mammals preserved in an early Upper Pleistocene deposit in Imanolen Arrobia (Deba, northern Spain) is hereby reported. Skeletal
Geocronología de los yacimientos achelenses de Pinedo y Cien Fanegas (Valle del Tajo) e implicaciones en la evolución fluvial en el entorno de Toledo (España)
This study presents the first geochronological data from several research projects focused on the chronostratigraphy of the Tagus fluvial terraces in the environs of Toledo city (Central Spain). The
Late Pleistocene Palaeoenvironmental Variations from Marine Isotope Stages 5 and 4: Small Mammals at Artazu VIII Site (Arrasate, Northern Iberian Peninsula)
Abstract. Sites corresponding to Marine Isotope Stage MIS 5c and MIS 4 like Artazu VIII, with a continental record but no hominin imprints or carnivore activities, are very scarce in the Iberian
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References

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Geochemical evolution of amino acids in dentine of Pleistocene bears.
TLDR
The aspartic acid in a heating experiment at 105 degrees C shows an "apparent kinetics reversal" which can be explained by a progressive hydrolysis of amino acid chains (proteins and polypeptides).
Concordance of collagen-based radiocarbon and aspartic-acid racemization ages.
TLDR
Results provide evidence that the aspartic-acid racemization reaction is an important chronological tool for dating bones either too old or too small for radiocarbon dating.
Amino acid racemization in mammalian bones and teeth from La Chaise-de-Vouthon (Charente), France
A controlled test of the amino acid dating method as it is currently being applied to bones and teeth was attempted for the time range 100-250 ka, beyond that of 14C, at the archeological site of La
Aspartic acid racemisation in dentine as a measure of ageing
TLDR
It is shown that tooth dentine is a more suitable material, and the extent of aspartic acid racemisation in this fraction can be used as a reliable indicator of mammalian age.
Fraction dependent variation of aspartic acid racemization age of fossil bone
The extent of racemization of amino acids provides valuable information on the chronology of various fossil materials1–3. In bone, aspartic acid has received the most attention, and the D/L ratio of
Estimation of chronologic age using the aspartic acid racemization method. II. On human cortical bone
TLDR
It seems as if bone maybe used for age estimations when more stable tissues like dentine and cartilage are not available, since preliminary studies have shown that there are some age-related changes of the D/L aspartic acid ratio also in bone.
Some considerations regarding the use of amino acid racemization in human dentine as an indicator of age at death.
TLDR
It is concluded that there is some fundamental difference in the observed enantiomeric ratios between modern teeth and older samples, possibly as a result of the chemical alteration of the dental proteins.
Kinetics of Amino Acid racemization (epimerisation) in the dentine of fossil and modern bear teeth
The present study examines the question of whether heating experiments on modern bear teeth dentine model the pattern of D/L racemization in fossil teeth. Using samples of modern bear teeth dentine
Kinetics of amino acid racemization (epimerization) in the dentine of fossil and modern bear teeth
The present study examines the question of whether heating experiments on modern bear teeth dentine model the pattern of D/L racemization in fossil teeth. Using samples of modern bear teeth dentine
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