R. Tenhave et al., INTERFERENCE OF PEPTONE AND TYROSINE WITH THE LIGNIN PEROXIDASE ASSAY, Applied and environmental microbiology, 63(8), 1997, pp. 3301-3303
The N-unregulated white rot fungus Bjerknadera sp. strain BOS55 was cu
ltured in 1 liter of peptone-yeast extract medium to produce lignin pe
roxidase (LiP). During the LiP assay, the oxidation of veratryl alcoho
l to veratraldehyde was inhibited due to tyrosine present in the pepto
ne and the yeast extract.