Characterization of Dicarboxylic Acids for Cellulose Hydrolysis

Mosier, Nathan S.; Sarikaya, Ayda; Ladisch, Christine M.; Ladisch, Michael R.

doi:10.1021/bp010028u

Cited by 139 publications

(77 citation statements)

References 69 publications

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“…Cellulose swelling and dissolution with other concentrated acids (sulfuric acid, hydrochloric acid, and nitric acid) have also been reported (Hudson and Cuculo, 1980). Acid pretreatment methods normally require corrosion resistant materials of construction and some mineral acids produce degradation products (Mosier et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of cellulose saccharification kinetics using an ionic liquid pretreatment step

Dadi

Varanasi

Schall

2006

Biotech & Bioengineering

530

375

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Hydrolysis of cellulose to glucose in aqueous media catalyzed by the cellulase enzyme system suffers from slow reaction rates due in large part to the highly crystalline structure of cellulose and inaccessibility of enzyme adsorption sites. In this study, an attempt was made to disrupt the cellulose structure using the ionic liquid (IL), 1-n-butyl-3-methylimidazolium chloride, in a cellulose regeneration strategy which accelerated the subsequent hydrolysis reaction. ILs are a new class of non-volatile solvents that exhibit unique solvating properties. They can be tuned to dissolve a wide variety of compounds including cellulose. Because of their extremely low volatility, ILs are expected to have minimal environmental impact on air quality compared to most other volatile solvent systems. The initial enzymatic hydrolysis rates were approximately 50-fold higher for regenerated cellulose as compared to untreated cellulose (Avicel PH-101) as measured by a soluble reducing sugar assay.

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Section: Introductionmentioning

confidence: 99%

Enhancement of cellulose saccharification kinetics using an ionic liquid pretreatment step

Dadi

Varanasi

Schall

2006

Biotech & Bioengineering

530

375

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“…In previous work (Mosier et al, 2000), we proposed the development a catalyst analogous to cellulolytic enzymes for use in some industrial applications such as the sacchari®cation of biomass for fermentation feedstock.…”

Section: Introductionmentioning

confidence: 99%

Characterization of acid catalytic domains for cellulose hydrolysis and glucose degradation

Mosier

Ladisch

2002

Biotech & Bioengineering

239

151

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Cellulolytic enzymes consist of a catalytic domain, a linking peptide, and a binding domain. The paper describes research on carboxylic acids that have potential as catalytic domains for constructing organic macromolecules for use in cellulose hydrolysis that mimic the action of enzymes. The tested domains consist of the series of mono-, di-, and tricarboxylic acids with a range of pK(a)'s. This paper systematically characterizes the acids with respect to hydrolysis of cellobiose, cellulose in biomass, and degradation of glucose and compares these kinetics data to dilute sulfuric acid. Results show that acid catalyzed hydrolysis is proportional to H+ concentration. The tested carboxylic acids did not catalyze the degradation of glucose while sulfuric acid catalyzed the degradation of glucose above that of water alone. Consequently, overall yields of glucose obtained from cellobiose and cellulose are higher for the best carboxylic acid tested, maleic acid, when compared to sulfuric acid at equivalent solution pH.

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“…Mosier et al investigated dicarboxylic acids for cellulose hydrolysis, and the results showed that dilute maleic acid had been shown to hydrolyze cellulose as efficiently as dilute sulfuric acid (Mosier et al 2001). In the present work, it was inevitable that there was some residual maleic acid in paper samples due to the hydrolysis of maleic anhydride.…”

Section: Wet Strength Of Paper After Dipping Treatmentmentioning

confidence: 67%

In situ Grafting of Chitosan onto Cellulosic Fibers Using Maleic Anhydride for Paper Wet Strength Improvement

Zhang

2018

BioResources

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The wet strength of paper is an important property in its various applications. In this paper, chitosan was employed as an additive to improve the wet strength of paper using a dipping process, and maleic anhydride (MA) was used to improve the retention of chitosan. The underlying mechanism was the bridging effect of MA, via the formation of esters between MA and cellulose and amides between MA and chitosan, both of which were supported by the FT-IR results. The temporary and permanent wet strengths of the paper increased significantly, and the key parameters were 1) the concentration of MA and chitosan, 2) dipping duration, and 3) curing temperature. The temporary and permanent wet strengths reached 31.6% and 29.7%, respectively, at a concentration of treating solution of 1%, dipping time of 12 h, and curing temperature of 90 °C. At a curing temperature of 170 °C under otherwise the same conditions, both the temporary and permanent wet strengths were higher than 50%.

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Characterization of Dicarboxylic Acids for Cellulose Hydrolysis

Cited by 139 publications

References 69 publications

Enhancement of cellulose saccharification kinetics using an ionic liquid pretreatment step

Enhancement of cellulose saccharification kinetics using an ionic liquid pretreatment step

Characterization of acid catalytic domains for cellulose hydrolysis and glucose degradation

In situ Grafting of Chitosan onto Cellulosic Fibers Using Maleic Anhydride for Paper Wet Strength Improvement

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