Enzymelektrode zur Bestimmung von L‐Lysin in Aminosäuregemischen

Abstract
A specific enzyme electrode with L‐Lysine decarboxylase (E.C. 4.1.1.18) from Klebsiella pneumoniae and a CO2‐sensor are described. The electrode can be used for assay of L‐Lysine in amino acid mixtures as protein hydrolysates or culture filtrates from fermentation processes. The accuracy and reproducibility are those of an amino acid analyzer. The electrode works well for several weeks.