You need JavaScript to view this

Saccharification of cellulose by acetolysis

Abstract

For saccharification of cellulose, an acetolysis method using assimilable acid with a microorganism was applied. Based on this method, a new method which gave totally assimilable products was established. The rigid crystalline structure of cellulose was disrupted by acetolysis with 2-2.5 times as much acetic anhydride as cellulose on a weight basis and 1 N sulfuric acid as a catalyst. Then for cleavage of O-acetyl ester and glycosidic bonds, the resulting amorphous acetolysate of cellulose could easily be hydrolyzed by heating in 1 N sulfuric acid at 120/sup 0/C for 1-1.5 h without over-disruption of glucose. Ninety-eight % of the cellulose used was recovered in the form of hydrolysate having about 30% saccharide concentration. The hydrolysate obtained was composed of 74% glucose, 13% cellobiose and 11% mono-O-acetyl glucose on a weight basis.
Publication Date:
Jan 01, 1978
Product Type:
Conference
Reference Number:
EDB-80-013366
Resource Relation:
Journal Name: Hakko Kogaku Zasshi; (Japan); Journal Volume: 56:4; Conference: 26. international congress of pure and applied chemistry
Subject:
59 BASIC BIOLOGICAL SCIENCES; 09 BIOMASS FUELS; CELLULOSE; ACETOLYSIS; HYDROLYSIS; SACCHARIDES; BIOSYNTHESIS; BIOCONVERSION; CELLOBIOSE; GLUCOSE; ALDEHYDES; CARBOHYDRATES; CHEMICAL REACTIONS; DECOMPOSITION; DISACCHARIDES; HEXOSES; LYSIS; MONOSACCHARIDES; OLIGOSACCHARIDES; ORGANIC COMPOUNDS; POLYSACCHARIDES; SOLVOLYSIS; SYNTHESIS; 550700* - Microbiology; 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)
OSTI ID:
5860767
Research Organizations:
Ajinomoto Co., Inc., Kawasaki, Japan
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: HKZAA
Submitting Site:
TIC
Size:
Pages: 410-415
Announcement Date:

Citation Formats

Tanaka, T, Yamanaka, S, and Takinami, K. Saccharification of cellulose by acetolysis. Japan: N. p., 1978. Web.
Tanaka, T, Yamanaka, S, & Takinami, K. Saccharification of cellulose by acetolysis. Japan.
Tanaka, T, Yamanaka, S, and Takinami, K. 1978. "Saccharification of cellulose by acetolysis." Japan.
@misc{etde_5860767,
title = {Saccharification of cellulose by acetolysis}
author = {Tanaka, T, Yamanaka, S, and Takinami, K}
abstractNote = {For saccharification of cellulose, an acetolysis method using assimilable acid with a microorganism was applied. Based on this method, a new method which gave totally assimilable products was established. The rigid crystalline structure of cellulose was disrupted by acetolysis with 2-2.5 times as much acetic anhydride as cellulose on a weight basis and 1 N sulfuric acid as a catalyst. Then for cleavage of O-acetyl ester and glycosidic bonds, the resulting amorphous acetolysate of cellulose could easily be hydrolyzed by heating in 1 N sulfuric acid at 120/sup 0/C for 1-1.5 h without over-disruption of glucose. Ninety-eight % of the cellulose used was recovered in the form of hydrolysate having about 30% saccharide concentration. The hydrolysate obtained was composed of 74% glucose, 13% cellobiose and 11% mono-O-acetyl glucose on a weight basis.}
journal = {Hakko Kogaku Zasshi; (Japan)}
volume = {56:4}
place = {Japan}
year = {1978}
month = {Jan}
}