Impact of double alkaline peroxide pretreatment on enzymatic hydrolysis of palm fibre

Chang, Shengqiang; Li, Wangliang; Zhang, Yuming

doi:10.1016/j.crcon.2018.06.005

Cited by 11 publications

(4 citation statements)

References 22 publications

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“…The palm residues are found in large quantities in numerous countries, mainly in Brazil, and is considered a low cost, biodegradable, and easy handling residue. 12 The Australian royal palm is an endemic tree in eastern Australia, and the tropical Brazilian climate holds the ideal germination temperature between 20 and 30 °C. This tree specimen can reach up to 25 m in height, producing viable seeds annually, 13 , 14 besides having advantageous disease resistance, and palm heart high quality.…”

Section: Introductionmentioning

confidence: 99%

Revaluation of Australian palm residues in polypropylene composites: Statistical influence of fiber treatment

Zanini

Barbosa

Souza

et al. 2020

Journal of Composite Materials

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Australian palm residues are generated by palm heart industry in large quantities and are considered an underused material with a composition rich in lignocellulosic structures. This residue is generally utilized as briquettes for energy or sheep feed; however, few works investigate this residue as composite fillers. This work aimed to revalue Australian palm residues (PR) by preparing polypropylene composites through melt mixing, using different fiber contents (0, 5, 10, 20, and 30 wt%), and evaluate the statistical influence of fibers (residues) alkali treatment (MPR) in composites mechanical properties. PR and MPR were evaluated by FTIR, XRD, SEM, TGA, and composites were assessed using thermal and mechanical analysis, in which ANOVA statistical analysis was applied. The residues addition increased the mechanical properties and their treatment enhanced the stiffness of the composites compared to pristine PP. However, ANOVA demonstrated that at low residues contents, surface treatment does not increase fiber-matrix interactions effectively, then tensile properties were statistically similar to PP. Considering tensile properties, 20% MPR showed statistically distinct properties, with significative enhancements; no filler contents dependence was verified. Flexural properties were more sensitive to residue loading, and composites with 30% PR and MPR presented superior mechanical performance. This difference is associated with a higher sensitivity of tensile stress towards fiber-matrix interactions, which was improved with fiber treatment. Also, the residues content and treatment influenced the composites' thermal stability, with better results for PP-MPR. Results indicate that palm residue is an excellent filler for improving composites' thermal and mechanical properties, with a greener character.

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Section: Introductionmentioning

confidence: 99%

Revaluation of Australian palm residues in polypropylene composites: Statistical influence of fiber treatment

Zanini

Barbosa

Souza

et al. 2020

Journal of Composite Materials

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“…The untreated sorghum biomass was observed to have a sedimentary layer on the surface area. 41 This layer can include waxes, hemicellulose, lignin or other bonding materials. 42 The SEM images of the biomass after the chemical pretreatment showed prominent roughness and looser structure, as compared to the untreated sample, making the fibres more vulnerable to the enzymatic hydrolysis.…”

Section: Resultsmentioning

confidence: 99%

“…42 The SEM images of the biomass after the chemical pretreatment showed prominent roughness and looser structure, as compared to the untreated sample, making the fibres more vulnerable to the enzymatic hydrolysis. 41 The surface layer was removed during the pretreatment, resulting in the exposure of the internal structure and the fibres. During the enzymatic hydrolysis, the external surface of sorghum biomass was damaged and further removal of the external surface, exposing the internal structure, can be observed.…”

Section: Resultsmentioning

confidence: 99%

Process of Obtaining Bioethanol From Sorghum Biomass Using Genome Shuffling

Batog¹,

Wawro²

2019

Cellulose Chem. Technol.

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One of the materials to be used for the production of bioethanol might be sorghum, an alternative plant for bioenergy production. In the process of obtaining biofuels, the bioprocess technology is as important as the plant material. The production of bioethanol from lignocellulosic materials requires degrading cell walls to specific polymers and the hydrolysis of carbohydrates to monomer sugars. The aim of the study was to evaluate the chemical and enzymatic treatment of sorghum biomass during the preparation of the material for the production of ethanol. Biomass processing consists in the disintegration of the solid phase and breaking down of compact lignocellulose. The highest content of glucose was obtained using enzymatic hydrolysis with cellulolytic enzyme, i.e. Flashzyme Plus 200. After genome shuffling, the distillery yeast demonstrated an increased fermentation activity and resistance to environmental stress factors formed during the process of ethanol production.

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“…On the other hand, after pretreatment with sodium hydroxide (Figure 4b), SEM image of biomass shows structural damage and partial purification of the biomass surface. It can be concluded that NaOH degrades the bonds in lignocellulose, which increases its surface area and makes it more accessible to enzymes [45][46][47].…”

Section: Bioethanol Production Processmentioning

confidence: 99%

Utilization of Festuca arundinacea Schreb. Biomass with Different Salt Contents for Bioethanol and Biocomposite Production

Batog,

Wawro,

Bujnowicz

et al. 2023

Applied Sciences

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Soil salinity is one of the particularly important environmental factors, which limits the growth and development of plants, reduces the amount of crops and causes serious economic damage. The study found that Festuca arundinacea can be successfully used for the management and bioremediation of saline habitats, and it is characterized by a very well-developed root system and an average high biomass production of approx. 14.8 Mg∙ha−1, which can be used for industrial applications. Tall fescue biomass from soils with different levels of salinity was used to obtain bioethanol using 1.5% NaOH pretreatment and for the process of simultaneous enzymatic hydrolysis and ethanol fermentation (SSF). It was found that the content of Na+ ions in the tall fescue biomass had no significant effect on the amount of ethanol obtained (the average 19.32 g∙100 g−1 of raw material). F. arundinacea biomass was also used as a natural filler to obtain green composites using a biodegradable polylactide (PLA) matrix. It has been shown that tall fescue biomass with the lowest sodium content in biomass (approx. 2.5 mg∙g−1) from an area with high saline (above 6 g NaCl∙L−1) has the smallest effect on reducing the tensile and flexural strength of composites. Moreover, the highest value of bioethanol concentration (21.2 g∙100 g−1 of raw material) for this biomass sample was obtained.

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Impact of double alkaline peroxide pretreatment on enzymatic hydrolysis of palm fibre

Cited by 11 publications

References 22 publications

Revaluation of Australian palm residues in polypropylene composites: Statistical influence of fiber treatment

Revaluation of Australian palm residues in polypropylene composites: Statistical influence of fiber treatment

Process of Obtaining Bioethanol From Sorghum Biomass Using Genome Shuffling

Utilization of Festuca arundinacea Schreb. Biomass with Different Salt Contents for Bioethanol and Biocomposite Production

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