Comparative study of alkaline hydrogen peroxide and organosolv pretreatments of sugarcane bagasse to improve the overall sugar yield

Yu, Hailong; You, Yanzhi; Lei, Fuhou; Liu, Zuguang; Zhang, Weiming; Jiang, Jianxin

doi:10.1016/j.biortech.2015.03.123

Cited by 69 publications

(39 citation statements)

References 32 publications

(39 reference statements)

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“…Moreover, the ethanol yield after GL-H2O2 pretreatment was much less than that after GL-Ethanol. A previous study showed that the glucose yield after 72 h of enzymatic hydrolysis with 1.5 mL of GL/g-DS during GL-Ethanol pretreatment was much greater than that with 0.6 g of H2O2/g-DS during GL-H2O2 pretreatment (Yu et al 2015a). These results indicated that SCB pretreated with GL-Ethanol had a lower contact angle, implying that the substrate was more hydrophilic compared with GL-H2O2-pretreated SCB (Yu et al 2015b).…”

Section: Effect Of Pretreatment Methods On Ethanol Productionmentioning

confidence: 51%

“…GL-H2O2 pretreatment was carried out in a polytetrafluoroethylene (PTFE) reactor at 80 °C and rotated at 100 rpm for 3 h according to previous optimization studies (Yu et al 2013(Yu et al , 2015a. The SCB was slurried in water (5%, w/v) containing the desired amount of H2O2 (0.6 g/g-dry substrate (DS)), GL (2 mL/g-dry matter), and 1% (w/w) ethylenediaminetetraacetic acid (EDTA, 98%, Sinopharm Chemical Reagent Beijing Co., Ltd).…”

Section: Pretreatment Of Sugarcane Bagasse By Green Liquor Combined Wmentioning

confidence: 99%

“…In China, most SCB is used for producing paper pulp (Alam et al 2013). However, because of the low strength of paper produced from SCB, this material has not been widely used in pulp and paper mills (Yu et al 2015a). Considering the high carbohydrate content of bagasse and the amount of bagasse that would be used for 3 billion liters per year, it is an attractive raw material for cellulosic ethanol production, and ethanol production could approach 3 billion liters per year (Gomes et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Several methods have been investigated for improving the enzymatic hydrolysis of bagasse, including steam explosion (Biswas et al 2014), liquid hot water extraction (Alvira et al 2010), alkaline peroxide (Arantes and Saddler 2010), dilute acid (Rocha et al 2011), lime, and organosolv pretreatments (Mesa et al 2011). Currently, pretreatment methods such as fiber explosion (steam, ammonia, and CO2), hot water extraction, and acid hydrolysis can remove hemicellulose efficiently to increase the accessibility of cellulose (Yu et al 2015a). On the other hand, alkaline pretreatments solubilize lignin and a small percentage of the hemicelluloses (Wandery et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Pretreatment Methods for Production of Ethanol from Sugarcane Bagasse

et al. 2016

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Sugarcane bagasse (SCB) was modified by steam explosion pretreatment at 190 °C for 10 min and 210 °C for 5 min using green liquor (GL) combined with hydrogen peroxide (GL-H2O2) and ethanol (GL-Ethanol) for simultaneous saccharification and fermentation (SSF)-based ethanol production. The results showed that 85.02% and 100% of hemicelluloses were solubilized by steam explosion pretreatment at 190 °C for 10 min and 210 °C for 5 min, respectively. Moreover, 20.08% and 73.77% of the lignin was removed through GL-H2O2 and GL-Ethanol pretreatments, respectively. The steam explosion pretreatments greatly improved the specific surface area of the SCB and led to the highest ethanol yield of 92.20% at 190 °C for 10 min and 93.19% of 210 °C for 5 min, respectively. In addition, the ethanol yield reached 72.58% for the GL-Ethanol pretreatment, and about 70% of active lignin could be recovered from the pretreatment liquid. When the GL-H2O2 pretreatment was used, the maximum ethanol yield of 20.92% was achieved.

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Section: Effect Of Pretreatment Methods On Ethanol Productionmentioning

confidence: 51%

Section: Pretreatment Of Sugarcane Bagasse By Green Liquor Combined Wmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of Pretreatment Methods for Production of Ethanol from Sugarcane Bagasse

et al. 2016

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“…A leitura em espectrofotômetro realizada após a digestão foi feita no comprimento de onda igual à 620 nm.. Para realizar os pré-tratamentos o ácido diluído (Santoro et al, 2015), organossolve (Yu et al, 2015) e hidrotérmico (Santucci et al, 2015) foram utilizados O pré-tratamento por explosão à vapor com peróxido de hidrogênio foi realizado em um reator de 10 L da Planta Piloto da Universidade de Lund, Suécia (Rabelo et al, 2012). Aproximadamente 500 g de bagaço com 50% de umidade foram alimentados no reator e, após o tempo de reação, o material foi descarregado em um ciclone ligado na saída do reator a pressão atmosférica.…”

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Efeito da adição de fibras de cana-de-açúcar pré-tratadas na produção de metano advinda da biodigestão anaeróbia de gorduras do leite

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Anaerobic digestion is an alternative for treating waste with high concentrations of organic matter. Through anaerobic processes biogas production is possible, which represents environmentally friendly renewable energy source. High lipid concentrations, however, although having high methanogenic potential, may negatively interfere with the treatment systems causing microbial activity inhibition and, consequently, depleting the production of methane. This project evaluated the effect of addition of cellulosic fibers in the anaerobic digestion process of high concentrations of fatty residues from dairy effluents. Therefore, sugarcane bagasse fibers were used in natura and pretreated by the following methods: organosolve, hydrothermal, steam explosion and dilute acid. The use of the fibers had the objective to control the inhibition caused by the products of the hydrolysis of lipids through adsorption and thus decrease the concentrations of such compounds in the medium. We also had the hypothesis that the cellulosic fibers could act as cosubstrate in the anaerobic digestion process. Initially, anaerobic biodegradability tests were set with increasing concentrations of fatty residue, which resulted in relation entity substrate and microorganism of 0.057; 0.12; 0.24; 0.37 and 0.57 g COD / gSTV. The assay in which severe inhibition was verified (0.37 g COD/gSTV) was repeated with addition of treated and untreated fibers. The sugarcane bagasse showed potential as adsorbent because the methanogenic yields in the presence of the fibers were higher than the inhibited condition, without addition of that material.The addition of pretreated fibers by organosolv method resulted in higher methane production.

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Organic Synthesis with Hydrolases

2022

Enzyme‐Based Organic Synthesis

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Comparative study of alkaline hydrogen peroxide and organosolv pretreatments of sugarcane bagasse to improve the overall sugar yield

Cited by 69 publications

References 32 publications

Comparison of Pretreatment Methods for Production of Ethanol from Sugarcane Bagasse

Comparison of Pretreatment Methods for Production of Ethanol from Sugarcane Bagasse

Efeito da adição de fibras de cana-de-açúcar pré-tratadas na produção de metano advinda da biodigestão anaeróbia de gorduras do leite

Organic Synthesis with Hydrolases

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