抄録
1. Coexistence of ascorbic acid in the solution of tryptophan, histidine or tyrosine caused apparent lowering of the observed values of amino acids. Workers in these field, should make some allowance for in the experiments of enzymological decomposition of amino acids by using the homogenate of various organs.
2. Kynurenine could be detected, by air-bubbling through the mixture of tryptophan and ascorbic acid.
3. A new spot was confirmed on the paper-chromatogram of the mixture of tryptophan and ascorbic acid.
It is planned to study further the quantitative relation and the mechanism of nucleic splitting.
Particular thanks are due to Prof. K. Ichiharain Osaka University who has kindly given us abrine. The authors wish to thank Prof. N. I to for his guidance.
