laccase


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laccase

[′la‚kās]
(biochemistry)
Any of a class of plant oxidases which catalyze the oxidation of phenols.
References in periodicals archive ?
The use of filtered lacquer sap for the experiments and processing with laccase enzyme that was involved in polymerization process is widely held in reported literature [1-6, 8].
These results were supported by work of researches that obtained an induction of the laccase by low CuSO4 concentrations (0.1 and 0.2mM) using P.
This new extension to the original project will continue the design and scalable synthesis of sophisticated lignin models containing multiple functionalities and will include the development of new biomass depolymerisation methodologies, including laccase enzymatic transformations and photocatalytic methods for the conversion of the model compounds.
1998); emission factors for PB and MDF (US Environmental Protection Agency 1998, 2001); environmental impacts of wood-based boards and surface and edge finishes (Cinar 2005); comparison of standard methods and gas chromatography methods in determination of formaldehyde emission from MDF bonded with formaldehyde-based resins (Kim and Kim 2005); environmental assessment of green hardboard production coupled with a laccase activated system (Gonzalez et al.
The enzymatic system ofWRF consists of laccase enzymatic (EC 1.10.3.2), lignin peroxidases (EC 1.11.10.14) and manganese peroxidases (EC 1.11.1.13) (Liers et al., 2013), which allow cleavage of the aromatic rings in dyes.
isolated from an eucalypt stem canker [10] and classified as Botryosphaeria rhodina MAMB-05 [11] has been described as a constitutive producer of laccase [12], and enzyme titres could be enhanced through induction by veratryl alcohol [13, 14, 15] and copper [16], and was also influenced by aeration [17], and the type of carbon and nitrogen (N) sources used [15-18].
It has been shown that lignin prevents polysaccharide digestion in the rumen and physically blocks hydrolytic enzymes produced by the rumen microorganism from affecting tissues with high digestibility (Albores et al., 2006) while fungi, with their exoenzymes like laccase, oxidase, aromatic cycles and aliphatic chains, oxidate lignin to produce products with low molecular weight (Alemawor et al., 2009; Ravindran and Jaiswal, 2016).