Effect of chemical pretreatments on the thermal degradation of corn husk lignocellulosics

Barl, Branka; Βiliaderis, Costas G.; Murray, E.D.

doi:10.1021/jf00072a022

Cited by 11 publications

(5 citation statements)

References 9 publications

(20 reference statements)

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“…Comparable trends were reported by (Bismarck et al 2000) for jute fibres and green hemp (Bismarck et al 2002). The positive fpotentials measured for flax and cornhusk is most likely due to the presence of proteins (Barl 1986;Reddy and Yang 2005) and amino acids (Morvan et al 2003) in the surfaces of these fibres. Cornhusk contains up to 7.1% proteins (Barl 1986).…”

Section: Fibrementioning

confidence: 63%

“…The positive fpotentials measured for flax and cornhusk is most likely due to the presence of proteins (Barl 1986;Reddy and Yang 2005) and amino acids (Morvan et al 2003) in the surfaces of these fibres. Cornhusk contains up to 7.1% proteins (Barl 1986). Flax fibres contain glycine-rich and arabionogalactan-proteins which contain appreciable levels of acidic amino acids (Morvan et al 2003).…”

Section: Fibrementioning

confidence: 99%

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Wetting behaviour, moisture up-take and electrokinetic properties of lignocellulosic fibres

Baltazar‐y‐Jimenez

Bismarck

2006

Cellulose

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The wetting and moisture up-take behaviour, as well as the electrokinetic properties of various lignocellulosic fibres were characterised. Knowledge of surface and water uptake properties of this kind of materials will help to tailor their potential use in different end user applications. The surface tension of the fibres was determined from wetting measurements using the capillary rise technique. The wetting data were used to determine the surface tension of the fibres. Our results show that the surface tension of the lignocellulosic fibres is a linear function of their cellulose content. Zeta-potential measurements were exploited to characterise the surface chemistry of the fibres. Measuring the zeta-potential as function of time enables the rapid assessment of the water up-take, i.e. the swelling behaviour of the fibres. The results obtained by the zeta potential measurements correlate, with the exception of flax, in a linear manner with the results obtained from conventional moisture uptake measurements. Even though all lignocellulosic fibres are very hydrophilic due to the presence of polar oxygen containing groups they have different grades of hydrophilicity, which is also reflected in the different water uptake capabilities measured.The wetting, moisture uptake and electrokinetic properties of the lignocellulosic fibres are determined by the availability of the surface functional groups present, which is usually consequence of the processes used to separate, and extract the fibres from the plant (retting), as well as any further processing used to improve the fibre quality.

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Section: Fibrementioning

confidence: 63%

Section: Fibrementioning

confidence: 99%

Wetting behaviour, moisture up-take and electrokinetic properties of lignocellulosic fibres

Baltazar‐y‐Jimenez

Bismarck

2006

Cellulose

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“…This trend was confirmed by Mittal et al , who also demonstrated that crystallinity of corn stover depends on specific conditions of alkali pretreatment. Additionally, Barl et al demonstrated that maize husks experienced an increase in CI after both acid (H 2 SO 4 ) and alkali (NaOH) pretreatment processes [133]. It should be noted that previous studies have demonstrated that the cellulose binding domain of cellulases disrupt cellulose crystalline structure and causes a decrease in CI [134,135].…”

Section: Relevant Bioenergy Grass Traitsmentioning

confidence: 99%

Bioenergy grass feedstock: current options and prospects for trait improvement using emerging genetic, genomic, and systems biology toolkits

Feltus

Vandenbrink

2012

Biotechnol Biofuels

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For lignocellulosic bioenergy to become a viable alternative to traditional energy production methods, rapid increases in conversion efficiency and biomass yield must be achieved. Increased productivity in bioenergy production can be achieved through concomitant gains in processing efficiency as well as genetic improvement of feedstock that have the potential for bioenergy production at an industrial scale. The purpose of this review is to explore the genetic and genomic resource landscape for the improvement of a specific bioenergy feedstock group, the C4 bioenergy grasses. First, bioenergy grass feedstock traits relevant to biochemical conversion are examined. Then we outline genetic resources available bioenergy grasses for mapping bioenergy traits to DNA markers and genes. This is followed by a discussion of genomic tools and how they can be applied to understanding bioenergy grass feedstock trait genetic mechanisms leading to further improvement opportunities.

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“…Corn husk is a major agricultural waste produced in large quantities from corn harvesting for food industry. Corn husk is rich in cellulose content (38-40%) [6] but hardly exploited. Thus, because of its high cellulose content, corn husk is of interest as a possible resource for cellulose-based film production.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Biodegradable Film from Esterified Corn Husk Cellulose

Ratanakamnuan

Manorom

Inthasai

2013

AMR

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Cellulose-enrich residue from corn husk was transformed into biodegradable plastic films. After chemical removal of lignin and bleaching the corn husk pulp with hydrogen peroxide, corn husk cellulose powder was received by acid hydrolysis. The esterification of corn husk cellulose was performed using lauroyl chloride as an esterifying agent, toluene and pyridine as solvent and catalyst, respectively. The optimum conditions for esterification were investigated in terms of reaction time and temperature. Chemical structure and solubility of modified cellulose were examined. Cellulose laurate film was obtained by casting method in chloroform solvent. The tensile strength and elongation at break of cellulose laurate film were 5.15 MPa and 6.55%, respectively. The biodegradable of cellulose laurate films in different disposal environments including landfill and wastewater treatment plant for 2 months were investigated. The biodegradation process was followed by measuring the changes in the physical appearance and tensile properties of the films.

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Effect of chemical pretreatments on the thermal degradation of corn husk lignocellulosics

Cited by 11 publications

References 9 publications

Wetting behaviour, moisture up-take and electrokinetic properties of lignocellulosic fibres

Wetting behaviour, moisture up-take and electrokinetic properties of lignocellulosic fibres

Bioenergy grass feedstock: current options and prospects for trait improvement using emerging genetic, genomic, and systems biology toolkits

Preparation of Biodegradable Film from Esterified Corn Husk Cellulose

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