ORGANOSOLV-PULPING .3. THE INFLUENCE OF FORMIC-ACID DELIGNIFICATION OF THE ENZYMATIC-HYDROLYSIS OF PINUS-RADIATA D DON SAWDUST

被引：15

作者：

BAEZA, J ^{[1
]}

FERNANDEZ, AM ^{[1
]}

FREER, J ^{[1
]}

PEDREROS, A ^{[1
]}

SCHMIDT, E ^{[1
]}

DURAN, N ^{[1
]}

机构：

[1] UNIV ESTAD CAMPINAS, INST QUIM, BIOL CHEM LAB, BR-13081 CAMPINAS, BRAZIL

来源：

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY | 1991年 / 31卷 / 03期

关键词：

ORGANOSOLV PULPING; ENZYMATIC HYDROLYSIS; FORMIC ACID DELIGNIFICATION; PINUS-RADIATA;

D O I：

10.1007/BF02921754

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

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.

引用

页码：273 / 282

页数：10

共 26 条

[1]

AZIZ S, 1988, TAPPI J, V71, P251

[2]

BAEZA J, 1990, BOL SOC CHIL QUIM, V35, P331

[3]

BAEZA J, 1987, 6 P NAT M RES DEV FO, P163

[4]

BAEZA J, 1988, 18 P LAT AM CHEM C S, P513

[5]

BAEZA J, 1985, 1985 P S CHEM REN RE, P63

[6]

Bucholtz M., 1983, PULP PAPER, V57, P102

[7] STEAM EXPLOSION OF THE SOFTWOOD PINUS-RADIATA WITH SULFUR-DIOXIDE ADDITION .1. PROCESS OPTIMIZATION [J].

CLARK, TA ;

MACKIE, KL .

JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY, 1987, 7 (03) :373-403

[8]

Dekker R. F. H., 1987, Biocatalysis, V1, P63, DOI 10.3109/10242428709040131

[9]

DURAN N, 1988, 1ST NAT C BIOT

[10] Lignines (15. Announcement). [J].

Freudenberg, K ;

Janson, A ;

Knopf, E ;

Haag, A .

BERICHTE DER DEUTSCHEN CHEMISCHEN GESELLSCHAFT, 1936, 69 :1415-1425

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