Determination of L-Methionine with L-Methionine γ-Lyase

Abstract
The simple and sensitive spectrophotometric method for the determination of L-methionine with L-methionine γ-lyase (EC 4.4.1. 11) has been presented. The method consists of the α, γ-elimination reaction of L-methionine with L-methionine γ-lyase and the spectrophotometric determination of one of the reaction products: α-ketobutyrate, methanethiol or ammonia.