Biological delignification of paddy straw and Parthenium sp. using a novel micromycete Myrothecium roridum LG7 for enhanced saccharification

Tiwari, Rameshwar; Rana, Sarika; Singh, Surender; Arora, Anju; Kaushik, Rajeev; Agrawal, Ved Varun; Saxena, Anil Kumar; Nain, Lata

doi:10.1016/j.biortech.2012.12.079

Cited by 44 publications

(19 citation statements)

References 18 publications

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“…In a similar study, Tiwari et al (2013) observed prolific growth of Myrothecium roridum LG7 with subsequent delignification of paddy straw and parthenium weed. Hui et al (2013) reported delignification of three lignocellulosic substrates by eight different bacterial species present in a bacterial consortium.…”

Section: Bacterial Growth and Delignification Of Eucalyptus Kraft Pulpmentioning

confidence: 75%

Improving the perspective of raw eucalyptus kraft pulp for industrial applications through autochthonous bacterial mediated delignification

Priyadarshinee

Kumar

Mandal

et al. 2015

Industrial Crops and Products

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Section: Bacterial Growth and Delignification Of Eucalyptus Kraft Pulpmentioning

confidence: 75%

Improving the perspective of raw eucalyptus kraft pulp for industrial applications through autochthonous bacterial mediated delignification

Priyadarshinee

Kumar

Mandal

et al. 2015

Industrial Crops and Products

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“…In the present study, biological delignification was carried out using M. roridum LG7 which produces negligible amount of cellulase that resulted in cellulose enrichment during biodelignification (Tiwari et al 2013). Saccharification of biologically pretreated paddy straw resulted in better yield of total reducing sugars (455.81-509.65 mg/gds) after enzymatic hydrolysis.…”

Section: Discussionmentioning

confidence: 99%

“…Myrothecium roridum LG7, a lignolytic micromycete fungus isolated from decaying wood, was used for biological delignification of paddy straw. This fungus shows very low cellulase activity along with high lignolytic activity (Tiwari et al 2013). …”

Section: Screening Of Yeast Strains For Ethanol Productionmentioning

confidence: 98%

“…Residual alkali was removed completely by subsequent washing thrice by tap water. The delignified substrate consists of cellulose (59.3 %), hemicelluloses (25.7 %) and lignin (7.9 %) (Tiwari et al 2013). …”

Section: Biological Delignification Of Paddy Strawmentioning

confidence: 99%

“…Hence, to develop an economically feasible process of ethanol production from lignocellulose, complete conversion of all reducing sugars becomes obligatory, which can be achieved by selecting micro-organisms capable of fermenting sugars with greater efficiency. In our laboratory, we have already developed a biological delignification process for paddy straw by using Myrothecium roridum LG7 (Tiwari et al 2013) and also developed an indigenous enzyme cocktail for saccharification of delignified substrate (Tiwari et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Saccharification of biopretreated paddy straw with indigenous holocellulase and fermentation with Saccharomyces cerevisiae LN1 under optimized conditions

Priya

Tiwari

Rana

et al. 2016

Energ. Ecol. Environ.

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The current study was aimed at optimizing the fermentation conditions for efficient ethanol production from biologically pretreated paddy straw. The yeast strain Saccharomyces cerevisiae LN1 showed highest fermentation efficiency at pH 5.0 and temperature 30°C. Paddy straw pretreated with fungus Myrothecium roridum LG7 was saccharified with indigenous holocellulase from Aspergillus niger SH3 producing total sugar yield of 26.14 mg/ml with 19.23 mg/ml of glucose. Enzymatic hydrolysate was then fermented using S. cerevisiae LN1 to observe the effect of nutrient supplementation (yeast extract, MgSO 4 Á7H 2 O and (NH 4 ) 2 SO 4 ) on ethanol production. Higher ethanol was produced from saccharified material fermented without supplementation of any nutrient source. With the scale-up of ethanol production under optimized conditions in 7L bioreactor, 4.46 g/l of ethanol was produced with fermentation efficiency of 47.2 %. TLC of enzymatic hydrolysate confirmed the presence of p-coumaric acid, ferulic acid, vanillic acid, gallic acid and many other aromatic compounds and inhibitors in the saccharified material which limit fermentation efficiency of yeast strain. Thus, optimization of fermentation conditions can lead to development of a cost-effective process for efficient ethanol production, exploitation of which also requires removal of aromatic compounds and inhibitors which may hinder the ethanol production efficiency.

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Sustainable Production of Biofuels from Weedy Biomass and Other Unconventional Lignocellulose Wastes

Adak

Singh

Lavanya

et al. 2018

Sustainable Biotechnology- Enzymatic Resources of Renewable Energy

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Biological delignification of paddy straw and Parthenium sp. using a novel micromycete Myrothecium roridum LG7 for enhanced saccharification

Cited by 44 publications

References 18 publications

Improving the perspective of raw eucalyptus kraft pulp for industrial applications through autochthonous bacterial mediated delignification

Improving the perspective of raw eucalyptus kraft pulp for industrial applications through autochthonous bacterial mediated delignification

Saccharification of biopretreated paddy straw with indigenous holocellulase and fermentation with Saccharomyces cerevisiae LN1 under optimized conditions

Sustainable Production of Biofuels from Weedy Biomass and Other Unconventional Lignocellulose Wastes

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