Alkaline hydrogen peroxide pretreatment of cashew apple bagasse for ethanol production: Study of parameters

Correia, Jessyca Aline da Costa; Júnior, José Edvan Marques; Gonçalves, Leandra Regina; Rocha, Maria Valderez Ponte

doi:10.1016/j.biortech.2013.03.153

Cited by 133 publications

(38 citation statements)

References 33 publications

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“…Recent research has shown that the addition of cationic polyelectrolytes (c-PAM) improves enzymatic hydrolysis performance by promoting cellulase binding to cellulose fibers through "patching mechanism" (Haynes et al, 2013). On the other hand, pretreatment of lignocellulosic material by hydrogen peroxide increases the enzymatic digestibility up to 90-95 % by dissolving the lignin and exposing cellulose and hemicellulose to enzyme attack (Correia et al, 2013). The improvement in enzymatic hydrolysis yields by c-PAM and H 2 O 2 can be used to reduce the enzyme dosage and processing time, thus decreasing the overall process costs.…”

Section: Introductionmentioning

confidence: 98%

Bioconversion of paper mill sludge to bioethanol in the presence of accelerants or hydrogen peroxide pretreatment

Gurram

Al-Shannag

Lecher

et al. 2015

Bioresource Technology

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In this study we investigated the technical feasibility of convert paper mill sludge into fuel ethanol. This involved the removal of mineral fillers by using either chemical pretreatment or mechanical fractionation to determine their effects on cellulose hydrolysis and fermentation to ethanol. In addition, we studied the effect of cationic polyelectrolyte (as accelerant) addition and hydrogen peroxide pretreatment on enzymatic hydrolysis and fermentation. We present results showing that removing the fillers content (ash and calcium carbonate) from the paper mill sludge increases the enzymatic hydrolysis performance dramatically with higher cellulose conversion at faster rates. The addition of accelerant and hydrogen peroxide pretreatment further improved the hydrolysis yields by 16% and 25% (g glucose / g cellulose), respectively with the de-ashed sludge. The fermentation process of produced sugars achieved up to 95% of the maximum theoretical ethanol yield and higher ethanol productivities within 9h of fermentation.

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Section: Introductionmentioning

confidence: 98%

Bioconversion of paper mill sludge to bioethanol in the presence of accelerants or hydrogen peroxide pretreatment

Gurram

Al-Shannag

Lecher

et al. 2015

Bioresource Technology

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“…Thermo-alkali pretreatment and enzymatic hydrolysis of sunflower stalks increased the hydrogen production to 59.5 mL H 2 /gTVS (Monlau et al, 2013). Alkali hydrogen peroxide pretreatment significantly improved the enzymatic digestibility of cashew apple bagasse (Correia et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Characterisation of water hyacinth with microwave-heated alkali pretreatment for enhanced enzymatic digestibility and hydrogen/methane fermentation

Lin

Cheng

et al. 2015

Bioresource Technology

108

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“…The intensity of hydrolysis, as well as the modification degree, are dependent on the reaction conditions [19,26] .Other reactions include the conversion of lignin phenolic groups in aldehyde, carbonyls and quinones and, in the most dramatic cases, the disruption of aromatic rings [27] . The modification of the fibers is typically achieved by employing conventional reactors, which require long reaction times (up to 48 h) and generate large volumes of effluent [28] .…”

Section: Introductionmentioning

confidence: 99%

Oat fibers modification by reactive extrusion with alkaline hydrogen peroxide

et al. 2016

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SbstractThe modification of lignocellulosic fibers can enhance their interaction with other materials and alkaline hydrogen peroxide (AHP) is a reagent widely used to promote such modification. This work aimed to modify oat hulls fibers by reactive extrusion using AHP (7 g 100 g -1 of hulls). The modified oat hulls displayed performances comparable to those observed by other researchers using conventional AHP method (without extrusion). The AHP treated oat hulls showed increased luminosity compared to the extruded ones. Fourier transform infrared spectroscopy showed differences between the modified and unmodified structures. The removal of surface compounds resulted in a more open morphology, with greater surface area and greater porosity. Reactive extrusion can be an alternative method for fiber modification with several advantages, such as short processing time and no wastewater generation.

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Alkaline hydrogen peroxide pretreatment of cashew apple bagasse for ethanol production: Study of parameters

Cited by 133 publications

References 33 publications

Bioconversion of paper mill sludge to bioethanol in the presence of accelerants or hydrogen peroxide pretreatment

Bioconversion of paper mill sludge to bioethanol in the presence of accelerants or hydrogen peroxide pretreatment

Characterisation of water hyacinth with microwave-heated alkali pretreatment for enhanced enzymatic digestibility and hydrogen/methane fermentation

Oat fibers modification by reactive extrusion with alkaline hydrogen peroxide

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