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Involvement of veratryl alcohol and active oxygen species in degradation of a quinone compound by lignin peroxidase
Author(s) -
Momohara Ikuo,
Matsumoto Yuji,
Ishizu Atsushi
Publication year - 1990
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(90)81074-x
Subject(s) - chemistry , lignin peroxidase , lignin , peroxidase , degradation (telecommunications) , alcohol , scavenger , organic chemistry , quinone , oxygen , enzyme , radical , telecommunications , computer science
Degradation of 2‐hydroxy‐1,4‐naphthoquinone (HNQ) by lignin peroxidase is discussed. Degradation rat was remarkably increased by an increase in veratryl alcohol concentration. Degradation is partly prevented by adding OH . scavenger (mannitol or DMSO) to the reaction mixture. Addition of O 2 ‐. scavenger (Mn 2+ ) to the reaction mixture completely prevents the degradation. These results suggest that active oxygen species formed in the lignin peroxidase‐H 2 O 2 ‐veratryl alcohol system play an important role in HNQ degradation.