アミノ酸の研究 (第11報)

ラセミ型メチオニンの光学的分割 その3 酵素的分割

抄録

Methionine amide acetate was prepared from DL-methionine methyl ester hydrochloride by three processes. Enzymatic hydrolysis was then carried out using Protamylase, a pancreatic preparation, or Takadiastase, from which 61-67% of L-methionine and 56% of D-methionine amide acetate were obtained. Treatment of the latter with hydrobromic acid yielded 77% of D-methionine.