Pretreatment of cotton stalks by synergistic interaction of Daedalea flavida and Phlebia radiata in co-culture for improvement in delignification and saccharification

Meehnian, Harmanpreet; Jana, Asim Kumar; Jana, Mithu Maiti

doi:10.1016/j.ibiod.2016.11.022

Cited by 48 publications

(30 citation statements)

References 41 publications

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“…In the SFF of P. ostreatus in sugarcane bagasse, the lignin content was reduced from 31.89% to 20.79% after 15 days due to laccase production [33]. A total of 27.83% lignin in cotton stalks was degraded by Daedalea flavida under SSF [35]. Lignin degradation of 63% and cellulose enrichment occurred in rice straw treated by Pyrenophora phaeocomes, with a final laccase activity of 10,859.51 IU/gds [116].…”

Section: Lignin Degradationmentioning

confidence: 99%

“…The treatment by P. phaeocomes provided a 4.90-times increase in the sugars released from rice straw after hydrolysis [116]. The glucose yield after enzymatic saccharification of the biologically pretreated cotton stalks was increased more than 2-fold compared with that of the untreated control [35]. The delignification of lignocellulosic materials is important for cellulosic biofuel production, ruminant feed digestibility, and formation of paper products [123][124][125].…”

Section: Lignin Degradationmentioning

confidence: 99%

“…One review highlighted the potential of lignocellulosic materials to be used in different applications involving biofuels, enzymes, chemicals, pulp and paper, animal feed, and composites [31]. A variety of lignocellulosic residues associated with agriculture (e.g., sunflower seed hulls, sugarcane bagasse, sawdust waste, apple pomace, cotton stalks) have been studied in this regard [20,[32][33][34][35][36]. There have been more than 20 review papers published since 2010, and different topics about laccase have been summarized and discussed, including characteristics, expression and regulation, molecular design, production, and applications.…”

Section: Introductionmentioning

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: Lignin Degradationmentioning

confidence: 99%

Section: Lignin Degradationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

et al. 2019

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“…(1)" rend="display" xml:id="fd1">%Cr=I22true(I22+I18true)∗100C.I.=I22−I18I22∗100Where I 22 is the intensity of crystalline peak at 2θ = 22° and I 18 is intensity of amorphous peak at 2θ = 18° [6].…”

Section: Methodsmentioning

confidence: 99%

“…and biological approaches (fungal and bacterial) [ 1 , 4 , 5 ]. Out of these pretreatment strategies, the biological pretreatment is the most energy efficient, environmental friendly and economically viable approach which imitates the degradation process of lignin existing in nature [ 6 , 7 ]. Several bacterial and fungal species have been reported to possess the lignin degrading enzyme system which degrades the phenolic and non-phenolic components of lignin [ 5 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Chaetomium globosporum: A novel laccase producing fungus for improving the hydrolyzability of lignocellulosic biomass

Yadav

Vivekanand

2019

Heliyon

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Rapid economic growth and urbanization is imposing an unseen pressure on energy sector to fulfill the increasing energy demand. Non edible horticultural residues viz. wheat and pearl millet straw have the potential to become an economical resource for waste to energy conversion. However, maximum hydrolyzability of the crop residues is a prerequisite for efficient conversion of complex organic materials into biofuels. In the present study, mycological treatment of wheat and pearl millet straw was accomplished by employing Chaetomium globosporum. The straw samples were exposed to mycological treatment for 14, 28 and 42 days. The improvement in hydrolyzability of straw was assessed by estimating the increase in reducing sugar release. The competence of Chaetomium globosporum for treating the straw samples was evaluated by measuring the % lignin removal after treatment. Furthermore, the structural and morphological changes in the straw samples after mycological treatment were examined by using scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction analysis. The results revealed 124 and 91% increase in reducing sugar release along with 43 and 41% removal of lignin for wheat and pearl millet straw respectively. Significant differences were also observed in in the structure, crystallanity and surface morphology.

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Improving crude protein and methionine production, selective lignin degradation and digestibility of wheat straw by Inonotus obliquus using response surface methodology

et al. 2021

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BACKGROUND: To date, fungus-assisted pretreatment of agricultural residue has not become the preferred method to produce protein-enriched and ruminally digestible animal feed because of low time efficiency of fungal delignification and protein production, i.e. the long solid-state fermentation period, and because of laccase as a potential inhibitor of cellulose activity. In this study, response surface methodology was employed to optimize the parameters in the process of producing nutritious animal feed from wheat straw with Inonotus obliquus pretreatment.RESULTS: The mineral salt solution containing (w/v) (NH 4 ) 2 SO 4 1%, MgSO 4 •7H 2 O 0.03%, KH 2 PO 4 0.011%, Tween-80 0.4%, and corn starch 10% with pH of 7.4 was optimized. Inonotus obliquus rapidly and completely colonized on wheat straw with an ergosterol content of 280 ∼g g −1 dry matter, consuming 45% of lignin after 15 days of fermentation, producing maximums of lignin peroxidase (1729 IU g −1 ), manganese peroxidase (610 IU g −1 ) and laccase (98 IU g −1 ) on days 5, 15, and 25, respectively. The crude protein (102.4 g kg −1 ) of 15-day fermented wheat straw increased by ~132%. After hydrolysis, the essential protein-bound amino acids (15.3 g kg −1 ) increased by ~47%, within which Met and Lys measured ~1070% and ~60% higher. The treatment with I. obliquus also improved the in vitro gas production after 72 h (IVGP 72 ) of wheat straw to 178.8 mL g −1 organic matter (~43% increase). CONCLUSION: For the first time, we found that I. obliquus is an effective white rot fungus turning wheat straw into ruminally digestible animal feed without laccase inhibitor.

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Pretreatment of cotton stalks by synergistic interaction of Daedalea flavida and Phlebia radiata in co-culture for improvement in delignification and saccharification

Cited by 48 publications

References 41 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

Chaetomium globosporum: A novel laccase producing fungus for improving the hydrolyzability of lignocellulosic biomass

Improving crude protein and methionine production, selective lignin degradation and digestibility of wheat straw by Inonotus obliquus using response surface methodology

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