Lentinus edodes and Pleurotus species lignocellulolytic enzymes activity in submerged and solid-state fermentation of lignocellulosic wastes of different composition

Elisashvili, Vladimir; Penninckx, Michel; Kachlishvili, Eva; Tsiklauri, Nino; Metreveli, Eka; Kharziani, Tamar; Kvesitadze, G.

doi:10.1016/j.biortech.2007.01.011

Cited by 233 publications

(187 citation statements)

References 22 publications

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“…Research has shown that lignin is oxidised and degraded by a ligninase system (Lechner and Papinuti, 2006;Zeng et al, 2006;Elisashvili et al, 2008;Rodrigues et al, 2008) composed by lignin Modification of wheat straw lignin by solid state fermentation with white-rot fungi 24 peroxidase (LiP), manganese peroxidase (MnP) and laccase. In addition, cellulases, hemicellulases and esterases are also considered to be extremely important in the degradation process of lignocellulosic biomass (Ghatora et al, 2006;Tabka et al, 2006;Panagiotou et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Modification of wheat straw lignin by solid state fermentation with white-rot fungi

Dinis

Bezerra

Nunes

et al. 2009

Bioresource Technology

161

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Section: Introductionmentioning

confidence: 99%

Modification of wheat straw lignin by solid state fermentation with white-rot fungi

Dinis

Bezerra

Nunes

et al. 2009

Bioresource Technology

161

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“…Although the chemical composition of lignocellulosic wastes was not analyzed in this study, different LCWs affected the laccase production of these fungi differently. Similarly, Elisashvili et al (19) reported that the nature of lignocellulosic material and the method of cultivation are important factors for biosynthetic potential of fungi. While the highest laccase activities were respectively reported as 88.62 and 193.12 U/L for Phanerochaete chrysosporium and Pleurotus ostreatus in a liquid medium containing banana waste (40), it was reported as 639 U/L for Trametes versicolor in a barley bran medium (31).…”

Section: The Effect Of Various Lcw On Laccase Production In Sfmentioning

confidence: 99%

The utilization of lignocellulosic wastes for laccase production under semisolid-state and submerged fermentation conditions

Birhanlı

Yeşilada²

2013

Turk J Biol

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IntroductionThe renewable material lignocellulose is the major component of biomass and consists of lignin, hemicellulose, and cellulose (1). It is the most abundant natural material in the world (2). Large quantities of lignocellulosic wastes (LCWs) are released from various industries such as food, agricultural, forestry, paper pulp, and timber. These wastes cause serious environmental pollution, but can be reused constructively rather than burned due to their rich sugar contents (3,4). The chemical properties of these lignocellulosic wastes make them a crucial and cost-effective fermentation medium for biotechnological applications (3). However, while the hemicellulose and cellulose components of lignocellulosic materials are used by numerous microorganisms, the lignin, which is the most resistant material to microbial degradation, is converted efficiently by only a limited number of organisms, such as white rot fungi (1). Lignin serves as a barrier that protects cellulose and hemicellulose from enzymatic attack; however, white rot fungi can attack this barrier in order to obtain energy from cellulose (5). These fungi produce different extracellular ligninolytic enzymes such as laccase, manganese peroxidase, and lignin peroxidase (6,7). Laccase (benzenediol: oxygen oxidoreductase; EC 1.10.3.2) has received much attention because of its relatively low substrate specificity in comparison to most enzymes, and for its potential application in different biotechnological, industrial, and environmental fields. This enzyme can be used for biopulping, biobleaching, wastewater treatment, decolorization of various dyes, enzymatic removal of phenolic compounds in beverages, construction of biosensors, and bioremediation (8-14). Laccase can be produced at varying rates by using a wide range of organisms grown on different substrates and by using several methods of fermentation, such as solid state, semisolid state, and submerged (15-18). However, for effective laccase production, it is very important to use efficient laccase-producing organisms, suitable fermentation methods, and cheap and widespread sources. Accordingly, one of the most suitable approaches for the production of this enzyme is to use the most efficient agricultural wastes for increasing the production of the ligninolytic enzymes (19).Agricultural wastes such as corncob and sunflower receptacle were tested as fungal fermentation media for laccase production in this study. Every year, approximately 2-3.10 6 and 85.10 5 t of corn and sunflower are produced in Turkey, respectively (20). In addition, approximately 26.10 6

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“…For this reason, the cultivation of these fungi under conditions of submerged or solid-state fermentation is being intensively studied. Basidiomycetes like Pleurotus ostreatus (Carabajal et al, 2012), Coriolus versicolor, and Lentinula edodes (Elisashvili et al, 2008) produce the above-mentioned enzymes using different lignocellulosic feedstocks, especially agro-industrial wastes. The enzymes released by these fungi synergistically act on the lignocellulosic complex in order to degrade it and generate the sugars and other compounds needed for their development.…”

Section: Introductionmentioning

confidence: 99%

Production of lignocellulolytic enzymes from three white-rot fungi by solid-state fermentation and mathematical modeling

Montoya¹,

Levin²

2015

Afr. J. Biotechnol.

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Three species of white rot-fungi (Pleurotus ostreatus, Coriolus versicolor, and Lentinula edodes) were grown on 12 solid media based on several lignocellulosic materials (oak sawdust, coconut husks, coffee husks and corn bran) during 49 days. The media had varied carbon/nitrogen ratios and CuSO 4 content. The objective of the work was to evaluate the effect of the media formulation on the production of lignocellulolytic enzymes and degradation of lignocellulosic components by the three fungal species. C. versicolor exhibited the highest ability to degrade the three main polymers of the lignocellulosic waste materials employed and to produce ligninases with titers as high as 107 U/g solid substrate in the case of laccase. In addition, a mathematical model describing the fermentation kinetics of the cell biomass growth, degradation of lignocellulosic components, and lignocellulolytic enzyme production for the fungal species/medium combination exhibiting the best performance under solid-state fermentation conditions was proposed and validated in the case of C. versicolor. The mathematical model could be used to provide valuable information on the process itself as well as to contribute to the development of a future commercial process for lignocellulolytic enzyme production.

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Lentinus edodes and Pleurotus species lignocellulolytic enzymes activity in submerged and solid-state fermentation of lignocellulosic wastes of different composition

Cited by 233 publications

References 22 publications

Modification of wheat straw lignin by solid state fermentation with white-rot fungi

Modification of wheat straw lignin by solid state fermentation with white-rot fungi

The utilization of lignocellulosic wastes for laccase production under semisolid-state and submerged fermentation conditions

Production of lignocellulolytic enzymes from three white-rot fungi by solid-state fermentation and mathematical modeling

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