Table 1.

Ratio of D to L glyceraldehydes synthesized from glycolaldehyde and formaldehyde in the presence of amino acids

Amino acid	Ratio, D/L
L-serine	50.3/49.7
L-alanine	50.8/49.2
L-phenylalanine	52.2/47.8
L-valine	52.2/47.8
L-leucine	54.4/45.6
L-glutamic acid	60.7/39.3
L-proline	28.9/71.1