Biomodification of cellulose flax fibers by a new cellulase

García-Ubasart, Jordi; Torres, Antonio; Vila, Carlos; Pastor, F. I. Javier; Vidal, Teresa

doi:10.1016/j.indcrop.2012.10.019

Cited by 31 publications

(18 citation statements)

References 18 publications

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“…In addition, studies have shown that endoglucanases seem to defibrillate fibers by cleaving off protruding fibrils. This leaves behind smoother fibers that presumably would be easier to mix, which could contribute to a lowering in viscosity . Therefore, an excess of endoglucanase could result in a biomass slurry that is on average less viscous with fibers of similar length.…”

Section: Resultsmentioning

confidence: 99%

“…This leaves behind smoother fibers that presumably would be easier to mix, which could contribute to a lowering in viscosity. 30,31 Therefore, an excess of endoglucanase could result in a biomass slurry that is on average less viscous with fibers of similar length. An additional factor contributing to these differences in viscosity at similar fiber lengths could be that a complete suite of enzyme activities (as in Mix1) gives a more efficient cell-wall breakdown, presumably resulting in the release and exposure of soluble glucan oligomers, which could increase viscosity and/or increase fiber-fiber interactions to the same effect.…”

Section: The Relationship Between Viscosity and Mean Fiber Lengthmentioning

confidence: 99%

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The role of endoglucanase and endoxylanase in liquefaction of hydrothermally pretreated wheat straw

Skovgaard

Thygesen

Jørgensen

et al. 2014

Biotechnology Progress

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The role of endocellulases and endoxylanase during liquefaction and saccharification of hydrothermally pretreated wheat straw was studied. The use of a flow-loop setup with in-line magnetic resonance imaging enabled frequent measurements of viscosity at 55°C during saccharification at 6% total solids content. Viscosity data were complemented with off-line measurements of fiber lengths and release of soluble sugars. A clear correlation between fiber attrition and a decrease in viscosity was found. Fiber lengths and viscosity dropped quickly within the first hour and then stagnated, while sugar yields increased substantially thereafter, illustrating that liquefaction and saccharification are separate mechanisms. Both endoglucanase and endoxylanase were shown to have a significant effect on viscosity during liquefaction while the addition of endoxylanase also increased sugar yield.

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Section: Resultsmentioning

confidence: 99%

Section: The Relationship Between Viscosity and Mean Fiber Lengthmentioning

confidence: 99%

The role of endoglucanase and endoxylanase in liquefaction of hydrothermally pretreated wheat straw

Skovgaard

Thygesen

Jørgensen

et al. 2014

Biotechnology Progress

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“…From the slopes and intercept of linear fit, the values of Langmuir's constants are determined, Q 0 =33.3 mg•g -1 and b=0.94 dm 3 •mg -1 . They are related to the maximum quantity of adsorbate that can be bounded on adsorbent and the free adsorption energy, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…•(dm 3 •mg -1 ) (n-1) and n -characteristic constants for the predicted system: adsorbent, adsorbate and the solution.…”

Section: Methodsmentioning

confidence: 99%

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Modeling of the linen fabric dyeing after previous preparation

Vuckovic¹,

Kodrić²,

Nikodijević³

et al. 2018

Adv Techol

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The study deals with modeling of linen fabric dyeing after previous scouring and bleaching. The results reveal the process of the direct dye adsorption on the fabric, as well as the capacity and energy of adsorption based on which the optimization of the dyeing process with maximum performance and minimal costs can be done. With the increase of the dye concentration during dyeing, the degree of exhaustion decreases while the longer dyeing time gives a higher degree of dye exhaustion. Variation in the adsorbed amount of adsorbate increases with the increased initial concentration and time, i.e. a bigger amount of the dye or a longer time period of dyeing causes a bigger quantity of the adsorbed dye per mass unit of the linen fabric. The advantage in results processing is given to Freundlich-s model since the maximal value of the determination coefficient can be obtained.

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