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|Type:||Artigo de periódico|
|Title:||Organosolv-pulping Iii - The Influence Of Formic Acid Delignification On The Enzymatic Hydrolysis Of Pinus Radiata D. Don Sawdust|
|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. © 1991 Humana Press Inc.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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