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分析了两广地区一些第四纪骨和牙化石的氨基酸含量、外消旋程度，探讨了化石中氨基酸的成岩变化特征，阐述了化石中残留蛋白的降解导致氨基酸外消旋速度的变化，并使其在外消旋反应的后期偏离线性动力学
The amino acid content and racemization of some Quaternary bone and dental fossils in Guangdong and Guangxi regions were analyzed. The diagenetic characteristics of amino acids in fossils were discussed. The degradation of residual proteins in fossils led to the change of the racemization rate of amino acids. It deviates from linear kinetics in the later part of the racemization reaction