Enhancement in multiple lignolytic enzymes production for optimized lignin degradation and selectivity in fungal pretreatment of sweet sorghum bagasse

Mishra, Vartika; Jana, Asim Kumar; Jana, Mithu Maiti; Gupta, Antriksh

doi:10.1016/j.biortech.2017.03.148

Cited by 61 publications

(31 citation statements)

References 45 publications

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“…Lignocellulosic agricultural wastes are valuable substrates for laccase production as they have a high proportion of raw materials and contribute to improved efficiency. There is abundant evidence that lignin stimulates laccase production [50,51]. On the other hand, laccase production may be adversely affected by excessive lignin content.…”

Section: Lignocellulosic Agricultural Wastesmentioning

confidence: 99%

“…The phenolic compounds in steam-exploded cornstalk were beneficial for the induction of laccase expression by SSF [48]. Besides the natural inducers present in agricultural wastes, many single inducers have been added to media to increase laccase yield [50]. Aromatic inducers stimulated response signal recognition in white rot fungi, resulting in an intense biological response that induced secondary metabolism, leading to increased laccase concentration [77].…”

Section: Potential Inducersmentioning

confidence: 99%

“…White rot fungi are the most efficient naturally occurring producers of ligninolytic enzymes [2]. Massive LiP, MnP, and laccase activities were observed during SSF of Coriolus versicolor using sweet sorghum bagasse as a substrate [50]. The well-known laccase-producing fungal genera are Pleurotus (P. ostreatus, P. pulmonarius) and Trametes (T. versicolor, T. hirsuta) ( Table 1).…”

Section: Fungal Strains Effective For Laccase Production From Agriculmentioning

confidence: 99%

“…However, in fungal treatment of lignocellulosic wastes, cellulose degradation is generally accompanied by delignification [48]. To maximize the lignin degradation and selectivity, phenolic supplements were applied in the biological pretreatment of sweet sorghum bagasse by C. versicolor, and 45.8% lignin degradation was achieved [50]. In addition to investigating the phenolic compounds as laccase inducers, the potential for metal ions to improve the degradation selectivity in biological pretreatment was also examined.…”

Section: Lignin Degradationmentioning

confidence: 99%

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Fungal Laccase Production from Lignocellulosic Agricultural Wastes by Solid-State Fermentation: A Review

et al. 2019

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Laccases are copper-containing oxidase enzymes found in many fungi. They have received increasing research attention because of their broad substrate specificity and applicability in industrial processes, such as pulp delignification, textile bleaching, phenolic removal, and biosensors. In comparison with traditional submerged fermentation (SF), solid-state fermentation (SSF) is a simpler technique for laccase production and has many advantages, including higher productivity, efficiency, and enzyme stability as well as reduced production costs and environmental pollution. Here, we review recent advances in laccase production technology, with focus on the following areas: (i) Characteristics and advantages of lignocellulosic agricultural wastes used as SSF substrates of laccase production, including detailed suggestions for the selection of lignocellulosic agricultural wastes; (ii) Comparison of fungal laccase production from lignocellulosic substrates by either SSF or SF; (iii) Fungal performance and strain screening in laccase production from lignocellulosic agricultural wastes by SSF; (iv) Applications of laccase production under SSF; and (v) Suggestions and avenues for future studies of laccase production by fungal SSF with lignocellulosic materials and its applications.

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Section: Lignocellulosic Agricultural Wastesmentioning

confidence: 99%

Section: Potential Inducersmentioning

confidence: 99%

Section: Fungal Strains Effective For Laccase Production From Agriculmentioning

confidence: 99%

Section: Lignin Degradationmentioning

confidence: 99%

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Fungal Laccase Production from Lignocellulosic Agricultural Wastes by Solid-State Fermentation: A Review

et al. 2019

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“…Biological treatments employ microorganisms and their enzyme systems to break down the lignin present in lignocellulosic biomass. This approach has recently attracted increased attention because of its mild condition, low energy consumption, and the absence of pollution [33,34]. Among the microorganisms those are capable of degrading lignocelluloses, white rot fungi has a higher selectivity toward lignin with lower energy input, as well as being environmentally friendly [35].…”

Section: Biological Removal Of Lignin From the Steam-exploded Straw Sizementioning

confidence: 99%

Environmentally Friendly Method for the Separation of Cellulose from Steam-Exploded Rice Straw and Its High-Value Applications

Gou¹,

Wei²,

Jiang³

et al. 2018

Pulp and Paper Processing

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Separation of cellulose from agricultural straw is one of the key bottlenecks hindering the application of such kind of biomass resources. In this chapter, we provide three environmental-friendly ways for separation of cellulose from agricultural straw pretreated with steam explosion, which include delignification with recyclable water-polar aprotic organic solvent, selective bio-degradation of the lignin component, and extraction of cellulose with imidazolium-based ionic liquids from the steam-exploded rice straw. The isolated rice straw celluloses have been adopted as an enhancement for all-cellulose composites (ACCs) and cellulose/cement composites. Ultra-high tensile strength (650.2 MPa) can be achieved for the ACCs containing the activated straw cellulose fiber (A-SCF). The cellulose/cement composites show a significant promotion in the flexural strength and fracture toughness. The new nonderivative solvent for cellulose, tetrabutylammonium hydroxide (TBAH) aqueous solution with urea as additives has been proved to be manipulable for dissolving cellulose.

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Sustainable Routes for the Depolymerization of Lignocellulosic Biomass

Lindenbeck,

Liu,

Beele

et al. 2023

Encyclopedia of Inorganic and Bioinorganic Chemistry

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Lignocellulosic biomass is the world largest renewable resource used as a raw material to produce high‐value‐added chemicals, such as biofuels and other biomaterials. However, the complex chemical structures of its main constituents, named cellulose, hemicelluloses, and lignin, pose a challenge to the breakdown of these biopolymers into smaller units. In this scenario, sustainable methods for the depolymerization of lignocellulosic biomass aim to chemically break these macromolecules into simple monomers and dimers, while minimizing the use of hazardous chemicals and energy‐intensive processes. Different depolymerization strategies have been proposed, including enzymatic, electrochemical, acid‐catalyzed, and solvent‐based methods. Nevertheless, the development and improvement of sustainable approaches toward depolymerization technologies is still ongoing, and there is still room for further research to optimize the efficiency, cost‐effectiveness, and scalability of the processes. While the successful depolymerization of biomass may significantly contribute to the transition to a more sustainable and environmentally friendly economy, this article outlines the most recent developments focusing on the particularities of these processes, including biological, electrochemical, thermal, and chemical methods.

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Enhancement in multiple lignolytic enzymes production for optimized lignin degradation and selectivity in fungal pretreatment of sweet sorghum bagasse

Cited by 61 publications

References 45 publications

Fungal Laccase Production from Lignocellulosic Agricultural Wastes by Solid-State Fermentation: A Review

Fungal Laccase Production from Lignocellulosic Agricultural Wastes by Solid-State Fermentation: A Review

Environmentally Friendly Method for the Separation of Cellulose from Steam-Exploded Rice Straw and Its High-Value Applications

Sustainable Routes for the Depolymerization of Lignocellulosic Biomass

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