Racemization of Amino Acids in Sediments from Saanich Inlet, British Columbia

Science  11 Sep 1970:
Vol. 169, Issue 3950, pp. 1079-1082
DOI: 10.1126/science.169.3950.1079


In sediments spanning the last 9000 years from Saanich Inlet L enantiomers of amino acids are most abundant, but the percentages of D enantiomers increase with age, apparently because of partial racemization. Of the amino acids measured, glutamic acid and alanine show the greatest degree of racemization; leucine, isoleucine, and valine show the least.