Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/69759
Type: Artigo de periódico
Title: ORGANOSOLV-PULPING .3. THE INFLUENCE OF FORMIC-ACID DELIGNIFICATION OF THE ENZYMATIC-HYDROLYSIS OF PINUS-RADIATA D DON SAWDUST
Author: BAEZA, J
FERNANDEZ, AM
FREER, J
PEDREROS, A
SCHMIDT, E
DURAN, N
Abstract: Formic acid pretreatment on Pinus radiata D. Don was studied in order to improve the cellulose hydrolysis by commercial cellulase. The formic acid treatment effectively removed the lignin. A low substitution (formylation) and a crystallinity decrease of the cellulose in the pulp were observed. As consequence of these parameter changes, owing to the formic acid pretreatment on sawdust, a higher saccharification value was observed. The degree of saccharification increased when the degree of substitution (measured by titration) decreased and the portion of amorphous cellulose (measured via an X-ray technique) increased. Trichoderma reesei cellulase hydrolyzed the untreated and pretreated Pinus sawdust with formic acid in 25% and 56% of saccharification, respectively.
Subject: ORGANOSOLV PULPING
ENZYMATIC HYDROLYSIS
FORMIC ACID DELIGNIFICATION
PINUS-RADIATA
Country: EUA
Editor: Humana Press Inc
Rights: fechado
Identifier DOI: 10.1007/BF02921754
Date Issue: 1991
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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