Mimicking the Fenton reaction-induced wood decay by fungi for pretreatment of lignocellulose

Jung, Young Hoon; Kim, Hyun Kyung; Park, Hyun Min; Park, Yong Cheol; Park, Kyungmoon; Seo, Jin Ho; Kim, Kyoung Heon

doi:10.1016/j.biortech.2014.12.069

Cited by 77 publications

(58 citation statements)

References 29 publications

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“…The liquid fraction after two-step acid hydrolysis, pretreatment, or enzymatic hydrolysis, was autoclaved with 4% sulfuric acid for 1 h at 121 °C to degrade oligomeric glucose or xylose into monomeric sugars (Jung et al 2015). Sugar standards containing known concentrations were also autoclaved for the same time, at the same acid concentration, to correct the factors that influence hydrolysis loss.…”

Section: Analytical Proceduresmentioning

confidence: 99%

“…Lignocellulosic biomass feedstocks, like sugarcane bagasse Mesquita et al 2016), corn stover (Liu et al 2009a;Wang et al 2016), switchgrass (Li et al 2010), and wheat straw (Qiu and Chen 2012;Coimbra et al 2016), have already attracted much attention on the subject. However, the complex net structure of cellulose, hemicelluloses, and lignin hinders further utilization of lignocellulosic materials (Zhou et al 2014;Jung et al 2015). Its highly recalcitrant nature affects liquid penetration, enzyme activity, and enzyme accessibility (Jain and Vigneshwaran 2012;He et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…After enzymatic hydrolysis for 72 h, 35.41% of the glucose and 61.44% of the reducing sugars were obtained from the corn stover that had been pretreated with Fenton reagent and then dilute NaOH extraction (He et al 2015). Previous studies have shown that Fenton's reaction does not need harsh conditions such as a high concentration of chemicals, a high temperature, or high pressure (Kato et al 2014;Jung et al 2015). Current knowledge is that H2O2 itself is a very powerful oxidant that proceeds through a radical mechanism, and Fe 2+ ions present in the pretreatment solution serve as a catalyst.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Enzymatic Hydrolysis of Poplar after Combined Dilute NaOH and Fenton Pretreatment

et al. 2016

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Five types of pretreatment processes were investigated to confirm the enhancement of the enzymatic hydrolysis of poplar. These processes included a hot water pretreatment, a calcium oxide pretreatment, NaOH extraction at low temperature, a Fenton reaction, and a combined dilute NaOH and Fenton pretreatment. The combined dilute NaOH and Fenton pretreatment was found to be the most effective pretreatment process. After enzymatic hydrolysis for 72 h, 74% of the cellulose recovery yield was obtained when the poplar substrates were pretreated with 2% NaOH at 75 °C for 3 h, followed by 20 mmol/g of H2O2 (30%) and 0.2 mmol/g of FeSO4·7H2O for a Fenton reaction period of 12 h. The cellulose recovery yield was approximately five-fold greater than that of the untreated sample directly processed by enzymatic hydrolysis. Furthermore, microscopic observations of changes in the surface structure of the pretreated residue were correlated with the enhancement of the enzymatic hydrolysis of cellulose. In conclusion, the combined dilute NaOH and Fenton pretreatment shows high potential for future application.

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Section: Analytical Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhanced Enzymatic Hydrolysis of Poplar after Combined Dilute NaOH and Fenton Pretreatment

et al. 2016

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“…Lignocellulosic feedstocks, or second-generation feedstocks, are the most abundant renewable organic resource available and are composed of sugars and lignin [16•]. Agricultural lignocellulosic biomass comes from the wastes or residues in agricultural or forestry processing, such as sugarcane bagasse [17,18], corn stover [19], beechwood [20], sweet sorghum [21], corncob [22], rice straw [11,23], nutshells and pomace [24], palm empty fruit bunches [25], wheat straw [26], and onion/potato waste [27]. Table 1 presents the composition of selected lignocellulosic biomass types associated with their treatment process in the literature.…”

Section: Lignocellulose Feedstock From Agriculture and Forestrymentioning

confidence: 99%

“…Several types of biotechnologies such as using a microbial electrochemical method [7] have been operated at a large scale or in industrial manufacturing. Other emerging technologies for processing biomass include microwave-assisted biorefining [8], supercritical fluid extraction [9,10], oxidation methods [11], and resin-wafer electrodeionization with a separative bioreactor (RW-EDI/SB) [12].…”

Section: Introductionmentioning

confidence: 99%

Development of Low-Carbon-Driven Bio-product Technology Using Lignocellulosic Substrates from Agriculture: Challenges and Perspectives

Pan

Lin

Snyder

et al. 2015

Curr Sustainable Renewable Energy Rep

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Green biotechnology related to biomass conversion for production of bio-based chemicals has drawn considerable attention because of the increasing costs of fossil fuels and their adverse effects on climate change, environmental pollution, and human health. In this study, the recent promises and issues of low-carbon-driven bio-product technology development using lignocellulosic substrates from agriculture were critically reviewed. First, the challenges in bio-based chemical production were addressed from the aspect of technology. After that, the lignocellulose feedstock and their buildingblock chemicals used in the literature were summarized. In addition, novel pretreatment, bio-conversion, and separations technologies for cleaner production of bio-based products were comprehensively reviewed. It suggests that the main challenge to deploying bio-based chemical technologies into commercialization is the high cost of product recovery from the bioreactor due to the relatively low product titers caused by the product inhibition and/or pH in conventional fermentation.

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Enhancing Effect of Residual Lignins from D. Sinicus Pretreated with Fenton Chemistry on Enzymatic Digestibility of Cellulose

Ying

Shi

et al. 2018

Energy Tech

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To screen and evaluate possible functional factors in the bamboo lignin moiety that could block non‐productive adsorption of enzyme proteins on lignin, milled wood lignin (MWL) and Fenton oxidized lignin (FOLs) were prepared and incorporated in the enzymatic hydrolysis of Avicel. The addition of MWL decreased the 72 h glucose yields of cellulose from 57.1 % to 45.3 %, while FOLs effectively improved the enzymatic digestibility up to 69.5 %, which was 22 % higher than the system without the use of FOLs. The adsorption affinity and binding strength of cellulase with FOLs were lower than that with MWL. After Fenton pretreatment, hydrophilicity of lignins increased due to formation of C−O− and O−C=O bonds. Furthermore, high surface negative charges on FOLs resulted in strong electrostatic repulsion against the negatively charged cellulases. Finally, analysis of FOLs with 13C and 2D‐HSQC NMR indicated that the cleavage of β‐O‐4 linkages and demethoxylation occurred, and that less condensed structures at the Cβ and Cγ positions were observed. These oxidation reactions of the bamboo lignin lead to the formation of functional factors to alleviate irreversible adsorption of cellulase onto FOLs, and thus were responsible for promoting enzymatic digestibility efficiency.

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Mimicking the Fenton reaction-induced wood decay by fungi for pretreatment of lignocellulose

Cited by 77 publications

References 29 publications

Enhanced Enzymatic Hydrolysis of Poplar after Combined Dilute NaOH and Fenton Pretreatment

Enhanced Enzymatic Hydrolysis of Poplar after Combined Dilute NaOH and Fenton Pretreatment

Development of Low-Carbon-Driven Bio-product Technology Using Lignocellulosic Substrates from Agriculture: Challenges and Perspectives

Enhancing Effect of Residual Lignins from D. Sinicus Pretreated with Fenton Chemistry on Enzymatic Digestibility of Cellulose

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