Addition of corn fiber xylan to eucalyptus and pinus pulp and its effect on pulp bleachability and strength
Source abstract
Abstract
Abstract Corn fibers are a significant residue of agriculture due to the huge amounts, which has fueled interest in a more rational use of its components, particularly regarding hemicelluloses. The impact of hemicellulose redeposition on printer and writing (P&W) paper grade pulp properties are discussed in this paper. Xylans extracted from corn fibers (16.9 % xylans) by cold caustic extraction (CCE) were added to commercial brown pulps (eucalypt and pine) in the oxygen delignification (O-stage) and further bleached to 90 % ISO brightness. Hemicelluloses deposition occurred at variable degree (up to 7 % on pulp weight). Pulp bleachability was not impaired by xylan deposition for eucalypt and pine pulps. Xylan deposition onto fibers was more efficient in eucalypt pulp than pine. Pulp beatability and strength properties were improved by xylan deposition for P&W paper grades.
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Research context
OpenAlex topics: Advanced Cellulose Research Studies · Lignin and Wood Chemistry · Material Properties and Processing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Federal University of Viçosa , Department of Chemistry , 36570-900 Viçosa , MG , Brazil
FibraResist , Rua José Brandi , 459 – Distrito Industrial Luiz Trecenti , Lençóis Paulista , SP, 18685-800 , Brazil
Federal University of Viçosa , Department of Forest Engineering , 36570-900 Viçosa , MG , Brazil
Federal Rural University of Rio de Janeiro , Department of Forest Products , 23.897-000 , Seropédica , RJ , Brazil
Klabin S/A , Pesquisa e Desenvolvimento – Telêmaco Borba , Paraná , Brazil
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