Journal ArticleDOI
Production of ligninolytic enzymes for dye decolorization by cocultivation of white-rot fungi Pleurotus ostreatus and phanerochaete chrysosporium under solid-state fermentation.
Pradeep Verma,Datta Madamwar +1 more
TLDR
Among the various substrate combinations examined, neem hull and wheat bran wastes gave the highest ligninolytic activity.Abstract:
Lignocellulosic wastes such as neem hull, wheat bran, and sugarcane bagasse, available in abundance, are excellent substrates for the production of ligninolytic enzymes under solid-state fermentation by white-rot fungi. A ligninolytic enzyme system with high activity showing enhanced decomposition was obtained by cocultivation of Pleurotus ostreatus and Phanerochaete chrysosporium on combinations of lignocellulosic waste. Among the various substrate combinations examined, neem hull and wheat bran wastes gave the highest ligninolytic activity. A maximum production of laccase of 772 U/g and manganese peroxidase of 982 U/g was obtained on d 20 and lignin peroxidase of 656 U/g on d 25 at 28 +/- 1 degrees C under solid-state fermentation. All three enzymes thus obtained were partially purified by acetone fractionation and were exploited for decolorizing different types of acid and reactive dyes.read more
Citations
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Journal ArticleDOI
Recent developments in biodegradation of industrial pollutants by white rot fungi and their enzyme system
TL;DR: This review has tried to cover the latest developments on enzyme systems of WRF, their low molecular mass mediators and their potential use for bioremediation of industrial pollutants.
Journal ArticleDOI
Microbial decolorization and degradation of synthetic dyes: a review
TL;DR: In the present review the decolorization and degradation of azo dyes by fungi, algae, yeast and bacteria have been cited along with the anaerobic to aerobic treatment processes.
Journal ArticleDOI
Application of solid-state fermentation to ligninolytic enzyme production
TL;DR: In this paper, the authors present a review of the production of ligninolytic enzymes by Solid State Fermentation (SSF) technique, which has become an attractive alternative to submerged fermentation (SmF) for specific applications due to the recent improvements in reactor designs.
Journal ArticleDOI
Relevance of microbial coculture fermentations in biotechnology.
TL;DR: The relevance of coculture fermentations and the potential of improving existing processes as well as the production of new chemical compounds in industrial biotechnology are pointed out here by means of more than 35 examples.
Journal ArticleDOI
Microbial laccases and their applications: a review.
S. S. Desai,C. Nityanand +1 more
References
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Journal Article
Protein Measurement with the Folin Phenol Reagent
TL;DR: Procedures are described for measuring protein in solution or after precipitation with acids or other agents, and for the determination of as little as 0.2 gamma of protein.
Book ChapterDOI
Lignin peroxidase of Phanerochaete chrysosporium
Ming Tien,T. Kent Kirk +1 more
TL;DR: The production of ligninase in shallow stationary cultures and in agitated cultures is described, which give somewhat more reliable and reproducible results than the agitated cultures.
Journal ArticleDOI
Lignin-modifying enzymes from selected white-rot fungi: production and role from in lignin degradation
TL;DR: The most efficient lignin degraders, estimated by 14CO2 evolution from 14C-[Ring]-labelled synthetic lign in (DHP), belong to the first group, whereas many of the most selective lignIn-degrading fungi belong toThe second, although only moderate to good [14C]DHP mineralization is obtained using fungi from this group.
Journal ArticleDOI
Laccase-catalyzed decolorization of synthetic dyes
Yuxing Wong,Jian Yu +1 more
TL;DR: Effluent decolorization may not be limited by the small molecule metabolites which are not produced in large amount by fungus in most industrial effluents, and implies that the laccase-substrate dyes in an industrial effluent can promote the decolorized of those nonsubstrate dye.
Journal ArticleDOI
Nonconventional insecticidal effects of pesticides available from the Neem tree, Azadirachta indica
TL;DR: The nonconventional effects of preparations or compounds isolated from Neem may be classified as follows: partial reduction or complete inhibition of fecundity and/or sometimes egg hatchability; reduction of the life span of adults; and direct ovicidal effects against females.