A new magnesium bisulfite pretreatment (MBSP) development for bio-ethanol production from corn stover

Yu, Hongbo; Ren, Jiwei; Лю, Лэй; Zheng, Zhaojuan; Zhu, Jianzhong; Yong, Qiang; Ouyang, Jia

doi:10.1016/j.biortech.2015.08.090

Cited by 24 publications

(8 citation statements)

References 33 publications

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“…Sulfur dioxide solution (ACS reagent, ≥6%) was purchased from Sigma-Aldrich (Shanghai, China). Anhydrous sodium sulfite and magnesium chloride were purchased from Nanjing Chemical Reagent Co., Ltd. Magnesium bisulfate (MgSO3) was prepared as described by Yu et al (2016).…”

Section: Methodsmentioning

confidence: 99%

“…These results account for the access of enzymes and cellulose under this pH condition. Ren et al (2016). "MBSP for saccharification," BioResources 11(3), 7258-7270.…”

Section: Fig 3 Effects Of Pretreatment Ph On Ft-ir Spectra Of Pretrmentioning

confidence: 99%

“…Recently, our laboratory has developed a novel magnesium bisulfite pretreatment (MBSP) derived from sulfite pulping (Yu et al 2016). However, the influences of different pretreatment pH values during the MBSP process on enzymatic hydrolysis have not been studied.…”

Section: Introductionmentioning

confidence: 99%

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Comparative Evaluation of Magnesium Bisulfite Pretreatment under Different pH Values for Enzymatic Hydrolysis of Corn Stover

Ren

Liu

et al. 2016

BioResources

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During pretreatment, the pretreatment pH often plays an important role in removing hemicelluloses and lignin for improving the conversion of biomass to sugars. In this study, corn stover was subjected to magnesium bisulfite pretreatment (MBSP) under various pH conditions. The obtained data showed that the hemicelluloses and lignin were solubilized by MBSP, which led to changes in the structural and chemical properties of the pretreated material. The pretreatment pH could alter the existing forms of SO2, and magnesium bisulfite was the most effective reagent for removing lignin. A relatively neutral MBSP (pH 5.13) not only considerably improved the enzymatic hydrolysis yield (80.18%), but also produced a large amount of high-value xylo-oligosaccharides in the spent liquor. Furthermore, only the hemicellulose removal showed a linear relationship with the enzymatic hydrolysis yield. These results suggest that removal of all the lignin might not be necessary to improve the hydrolysis efficiency.

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Section: Methodsmentioning

confidence: 99%

“…These results account for the access of enzymes and cellulose under this pH condition. Ren et al (2016). "MBSP for saccharification," BioResources 11(3), 7258-7270.…”

Section: Fig 3 Effects Of Pretreatment Ph On Ft-ir Spectra Of Pretrmentioning

confidence: 99%

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Comparative Evaluation of Magnesium Bisulfite Pretreatment under Different pH Values for Enzymatic Hydrolysis of Corn Stover

Ren

Liu

et al. 2016

BioResources

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“…Previous work has shown that bisulfite pretreatment is a promising process that can be used in the effective conversion of different lignocellulose polysaccharides into bioethanol as a liquid fuel source (Zhu et al 2009;Tan et al 2013;Liu et al 2017). Wang et al (2011) and Yu et al (2015) showed that the enzymatic hydrolysis of CS for ethanol production can be significantly improved using bisulfite pretreatment. However, to date, there has been a lack of studies exploring the biorefinery of CS using bisulfite pretreatment.…”

Section: Introductionmentioning

confidence: 99%

Efficient fractionation of corn stover by bisulfite pretreatment for the production of bioethanol and high value products

Tan

Liu

et al. 2019

BioRes

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Fractionation of corn stover (CS) was carried out by bisulfite pretreatment in order to improve the production of bioethanol and high-value chemicals. Firstly, the optimum bisulfite pretreatment conditions of CS (170 C, 30 min, 7% NaHSO3, 1% H2SO4) were identified. Next, a biorefinery process of bisulfite pretreatment for CS was proposed. CS was separated into solid and liquor components using such pretreatment. The solid components were employed for bioethanol production by quasi-simultaneous saccharification and fermentation (Q-SSF). The bisulfite liquor was fractionated into hemicellulosic sugars and lignin by different types of resins. It was shown that CS components could be effectively fractionated through bisulfite pretreatment in combination with resin separation to produce bioethanol, hemicellulosic sugars, and lignosulfonate.

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“…Furthermore, utilizing lignocellulosic biomass reduces greenhouse gas emissions, promotes rural area economic development, and enhances energy security [ 2 , 3 ]. Despite these advantages, the biomass recalcitrance due to the cuticle and epicuticular waxes, structural heterogeneity, degree of lignification and crystalline cellulose of lignocellulosic biomass is a challenge in the search to obtain high bioethanol production [ 4 , 5 ]. Herein, finding a pretreatment that can break down biomass recalcitrance is the imperative for all forms and types of lignocellulosic biomass [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Enzymatic Hydrolysis of Rice Straw Pretreated by Oxidants Assisted with Photocatalysis Technology

et al. 2018

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This work evaluated the effectiveness of rice straw pretreatment using a TiO2/UV system in the presence of oxidants. The effects of TiO2 concentrations, pH and photocatalysis time were investigated. Inorganic oxidants including H2O2, K2S2O8, and KIO4 were added to further enhance the effect on enzymatic hydrolysis of rice straw. The TiO2/UV/ H2O2 pretreatment showed a higher amount of released reducing sugar (8.88 ± 0.10 mg/mL, compared to 5.47 ± 0.03 mg/mL in untreated sample). Composition analyses of rice straw after the TiO2/UV/H2O2 pretreatment showed partial lignin and hemicellulose removal. Moreover, structural features of untreated and pretreated rice straw were analyzed through FE-SEM, FT-IR, and XRD. This work suggests that H2O2 is an efficient addition for photocatalysis pretreatment of rice straw.

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A new magnesium bisulfite pretreatment (MBSP) development for bio-ethanol production from corn stover

Cited by 24 publications

References 33 publications

Comparative Evaluation of Magnesium Bisulfite Pretreatment under Different pH Values for Enzymatic Hydrolysis of Corn Stover

Comparative Evaluation of Magnesium Bisulfite Pretreatment under Different pH Values for Enzymatic Hydrolysis of Corn Stover

Efficient fractionation of corn stover by bisulfite pretreatment for the production of bioethanol and high value products

Enhanced Enzymatic Hydrolysis of Rice Straw Pretreated by Oxidants Assisted with Photocatalysis Technology

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