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001-es BibID:	BIBFORM072998
Első szerző:	Csapó János (agrármérnök)
Cím:	Age determination based on amino acid racemization: a new possibility / J. Csapó, Cs. Albert, K. Lóki, G. Pohn
Dátum:	2008
ISSN:	1844-7449 2066-7744
Megjegyzések:	A method has been developed to determine the age of fossilbone samples based on amino acid racemization (AAR). Approximatelyone hundred fossil bone samples of known age from Hungary were col-lected and analysed for D- and L-amino acids. As the racemization of amino acids is affected by temperature, pH, metal content of the soil,and time passed since death, these factors were eliminated by comparingthe estimated age to age determined by the radiocarbon method. De-termining the D- and L-amino acid contents in samples of known age,determining the half life of racemization and plotting the D/L ratio asa function of time, calibration curves were obtained. These curves canbe used for the age estimation of samples after determining their D- andL-amino acid content. The D/L ratio for 2 to 3 amino acids was deter-mined for each sample and the mean value of estimated ages based oncalibration curves was considered to estimate age of the fossil samples.
Tárgyszavak:	Agrártudományok Élelmiszertudományok idegen nyelvű folyóiratközlemény külföldi lapban Amino acid racemization D-amino acids age determination D-Ala, D-Asp D-allo-Ile D-Glu D-Phe D-Val
Megjelenés:	Acta Universitatis Sapientiae, Alimentaria 1 (2008), p. 109-118. -
További szerzők:	Albert Csilla (1976-) (gyógyszerész) Lóki Katalin (1980-) (agrárközgazdász) Pohn G.
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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