Process for treating cellulosic materials and obtaining glucose

Details Process for treating cellulosic materials and obtaining glucose Process for treating cellulosic materials and obtaining glucose

1979-10-03

1981-07-28

Marantz, Sidney

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing compound containing saccharide radical

127 37, 536 56, C13K 102, C12P 1914

Patent

active

042810639

ABSTRACT:
A process for treating cellulosic materials to obtain glucose therefrom, which process includes an initial acid or base treatment of the cellulosic materials to remove hemicellulose, followed by a solvent treatment of the solid residue to dissolve the native cellulose contained therein. The dissolved cellulose is separated from the solid lignin-containing residue, whereafter the cellulose is reprecipitated by contacting the solution thereof with water. The reprecipitated cellulose is hydrolyzed to glucose either by acid or enzyme hydrolysis. If desired, the cellulose may be reprecipitated and hydrolyzed in the presence of the lignin-containing solid, the latter being separated from the glucose.

REFERENCES:
patent: 2302022 (1942-11-01), Giordani
patent: 2465347 (1949-03-01), Boehm
patent: 3212933 (1965-10-01), Hess
patent: 3972775 (1976-08-01), Wilke

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