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Eremeeva, T.; Bikova, T.; Eisimonte, M.; Viesturs, U.; Treimanis, A.

doi:10.1023/a:1016627031201

Cited by 15 publications

(2 citation statements)

References 24 publications

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“…It has been reported that the swelling of fines is approximately double that of the fiber fraction. 30 Increase in the WRV after the hydrolysis were reported for bead cellulose, 17 but Eremeeva et al 31 reported no change in the WRV for bleached hardwood pulp. However, the fines content and fiber length were not reported in these studies.…”

Section: Swelling Capacitymentioning

confidence: 96%

Surface and pore structure modification of cellulose fibers through cellulase treatment

Park

Venditti

Abrecht

et al. 2006

J of Applied Polymer Sci

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The surface and pore structure of cellulose fibers have a significant impact on the properties and performance in applications. Cellulase enzymatic hydrolysis of cellulose fibers can result in changes to the surface and pore structure, thus providing a useful tool for fiber modification. This research characterizes these changes using various test methods such as fiber dimension, water retention value (WRV), hard-to-remove (HR) water content, freezing and nonfreezing bound water content, polymer adsorption, and crystallinity index. For a high-dosage cellulase treatment (600 U/g dry solid), the fiber length was significantly decreased and the fibers were ''cut'' in the cross direction, not in the axial direction. The swelling capacities as measured by the WRV and HR water content increased for the high-dosage treatment. Three independent measurements (nonfreezing bound water, polymer adsorption, and crystallinity index) are in good agreement with the statement that the amorphous regions of cellulose fibers are a more readily available substrate relative to crystalline regions.

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Section: Swelling Capacitymentioning

confidence: 96%

Surface and pore structure modification of cellulose fibers through cellulase treatment

Park

Venditti

Abrecht

et al. 2006

J of Applied Polymer Sci

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“…Consequently, the accessible areas of cellulose are available for the reaction with chemicals and other reagents, improving cellulose's reactivity (35). Nevertheless, the effects of hydrolysis are influenced by other factors, such as the crystallinity, the specific surface area and the degree of polymerization of cellulose (46).…”

Section: Enzymes Used For Activation Of Cellulosementioning

confidence: 99%

Production of Dissolving Grade Pulps from Wood and Non-Wood Paper-Grade Pulps by Enzymatic and Chemical Pretreatments

Ibarra

Köpcke

et al. 2012

Functional Materials From Renewable Sources

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A raw material with high cellulose content and low content of hemicelluloses, residual lignin, extractives and minerals is required for many important applications in the pharmaceutical, textile, food and paint industries i.e. cotton and dissolving grade pulp are used. However, the high costs for the production of dissolving grade pulps has triggered interest in upgrading paper-grade pulps into dissolving pulps by selective removal of hemicelluloses and subsequent activation of the pulps. This study reports the feasibility to produce dissolving grade pulps from different wood and non-wood paper-grade pulps employing enzymatic and chemical pre-treatments. The results were compared to those of commercial bleached dissolving pulps.

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Production of Dissolving-Grade Pulp

Bajpai

2011

Biotechnology for Pulp and Paper Processing

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Untitled

Cited by 15 publications

References 24 publications

Surface and pore structure modification of cellulose fibers through cellulase treatment

Surface and pore structure modification of cellulose fibers through cellulase treatment

Production of Dissolving Grade Pulps from Wood and Non-Wood Paper-Grade Pulps by Enzymatic and Chemical Pretreatments

Production of Dissolving-Grade Pulp

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