关键词: 漆酶, 介体, 漆酶/介体系统

Abstract: Laccases are multicopper oxidases which are widely distributed in plants, fungi, bacteria and insects. They can catalyze aromatic and non-aromatic compounds with final reduction of molecular oxygen to water as by-product. Some small molecular mediators can enhance the substrate range, efficiency and stability of laccases. Laccase mediator systems (LMS), constituted by laccases and their mediators, can more effectively catalyze non-phenolic, polycyclic aromatic hydrocarbons, and other refractory compounds. They have become one of the research hotspots in recent years, and manifest great application prospects in the fields of pulping and bleaching, dye decolorization, and environmental detoxification, etc. This paper reviewed the recent research advancement on sources and functions of laccases, structure and mechanisms of fungal laccases, mediators and their mechanisms, and applications of LMS, which was expected to provide reference for application research of laccases.

Key words: laccases, mediators, LMS