2011
DOI: 10.1007/s12088-011-0199-x
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Biological Pretreatment of Lignocellulosic Substrates for Enhanced Delignification and Enzymatic Digestibility

Abstract: Sheer enormity of lignocellulosics makes them potential feedstock for biofuel production but, their conversion into fermentable sugars is a major hurdle. They have to be pretreated physically, chemically, or biologically to be used by fermenting organisms for production of ethanol. Each lignocellulosic substrate is a complex mix of cellulose, hemicellulose and lignin, bound in a matrix. While cellulose and hemicellulose yield fermentable sugars, lignin is the most recalcitrant polymer, consisting of phenyl-pro… Show more

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Cited by 222 publications
(108 citation statements)
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“…Lignolytic microorganisms include fungi, actinomycetes, yeast, bacteria, and algae, all of which can produce enzymes responsible for lignocellulose degradation (Bajpai and Bajpai 1994; Annachatre and Gheewala 1996). Enzymatic treatment can be applied as a single step or with other physical and chemical methods, as extensively reviewed by Chen et al (2010), Saritha et al (2012), andBarakat et al (2014).…”
Section: Biological Processes -Susceptibility To Enzymatic Breakdownmentioning
confidence: 99%
See 1 more Smart Citation
“…Lignolytic microorganisms include fungi, actinomycetes, yeast, bacteria, and algae, all of which can produce enzymes responsible for lignocellulose degradation (Bajpai and Bajpai 1994; Annachatre and Gheewala 1996). Enzymatic treatment can be applied as a single step or with other physical and chemical methods, as extensively reviewed by Chen et al (2010), Saritha et al (2012), andBarakat et al (2014).…”
Section: Biological Processes -Susceptibility To Enzymatic Breakdownmentioning
confidence: 99%
“…Lignolytic microorganisms include fungi, actinomycetes, yeast, bacteria, and algae, all of which can produce enzymes responsible for lignocellulose degradation (Bajpai and Bajpai 1994; Annachatre and Gheewala 1996). Enzymatic treatment can be applied as a single step or with other physical and chemical methods, as extensively reviewed by Chen et al (2010), Saritha et al (2012), andBarakat et al (2014).Fungal enzymes, collectively termed as ligninases or lignin-modifying enzymes (LMEs), can degrade lignin into simple sugars and starch (Bocchini et al 2005;Dashtban et al 2010;Chopra and Singh 2012). Ligninases can be classified as phenol oxidases (laccase) or heme peroxidases (Martínez et al 2005).…”
mentioning
confidence: 99%
“…However, the reaction rate of polymer hydrolysis using biological methods are usually very low and those methods require strict control of microorganism growth conditions, which limits their application for commercial purposes. 27,29,87,88 Wood-rotting fungi that are commonly found in nature are among a number of organisms that can degrade lignocellulose components to various extents, and are generally grouped into soft-rot, brown-rot, and white-rot fungi. 89 White-rot fungi can degrade and mineralize all three major wood polymers: cellulose, hemicellulose, and lignin, whereas lignin can be degraded extensively resulting in a bleached appearance of degraded wood.…”
Section: Biological Pretreatmentmentioning
confidence: 99%
“…Alkaline pretreatment has been identified as one of the best chemical pretreatment methods for delignification of lignocellulosic biomass [10], [11]. This method is efficient if agricultural waste being used rather than the wood materials [12].…”
Section: Introductionmentioning
confidence: 99%