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Influence of fine grinding on the hydrolysis of cellulosic materials - acid vs enzymic

Abstract

The effect of vibratory milling on the enzymic and dilute H/sub 2/SO/sub 4/ hydrolysis of cotton linters, newsprint, Douglas fir, and red oak was investigated by determining the rate and degree of hydrolysis, maximum yield of reducing sugars, and cellulose crystallinity index. Linters were totally hydrolyzed in 10 days after 60 min milling; oak carbohydrates were 93% convertible to sugar in the same period after 240 min milling. Vibratory milling substantially increased the rates of acid hydrolysis of all 4 substrates, nearly 9- and 5-fold for linters and other lignocellulosic materials, respectively. Increases in maximum sugar yields under batch conditions were 60 to 140% higher than those for unmilled materials.
Publication Date:
Jan 01, 1979
Product Type:
Journal Article
Reference Number:
EDB-81-037987
Resource Relation:
Journal Name: Adv. Chem. Ser.; (United States); Journal Volume: 181
Subject:
09 BIOMASS FUELS; CELLULOSE; ACID HYDROLYSIS; ENZYMATIC HYDROLYSIS; GRINDING; MONOSACCHARIDES; CHEMICAL REACTION YIELD; COTTON; PAPER; WOOD; CARBOHYDRATES; CHEMICAL REACTIONS; COMMINUTION; DECOMPOSITION; HYDROLYSIS; LYSIS; MACHINING; ORGANIC COMPOUNDS; POLYSACCHARIDES; SACCHARIDES; SOLVOLYSIS; YIELDS; 140504* - Solar Energy Conversion- Biomass Production & Conversion- (-1989); 090222 - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989)
OSTI ID:
6667486
Research Organizations:
Forest Productive Lab., Madison, WI
Country of Origin:
United States
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: ADCSA
Submitting Site:
IEA
Size:
Pages: 71-89
Announcement Date:
Apr 01, 1981

Citation Formats

Millet, M A, Effland, M J, and Caulfield, D F. Influence of fine grinding on the hydrolysis of cellulosic materials - acid vs enzymic. United States: N. p., 1979. Web.
Millet, M A, Effland, M J, & Caulfield, D F. Influence of fine grinding on the hydrolysis of cellulosic materials - acid vs enzymic. United States.
Millet, M A, Effland, M J, and Caulfield, D F. 1979. "Influence of fine grinding on the hydrolysis of cellulosic materials - acid vs enzymic." United States.
@misc{etde_6667486,
title = {Influence of fine grinding on the hydrolysis of cellulosic materials - acid vs enzymic}
author = {Millet, M A, Effland, M J, and Caulfield, D F}
abstractNote = {The effect of vibratory milling on the enzymic and dilute H/sub 2/SO/sub 4/ hydrolysis of cotton linters, newsprint, Douglas fir, and red oak was investigated by determining the rate and degree of hydrolysis, maximum yield of reducing sugars, and cellulose crystallinity index. Linters were totally hydrolyzed in 10 days after 60 min milling; oak carbohydrates were 93% convertible to sugar in the same period after 240 min milling. Vibratory milling substantially increased the rates of acid hydrolysis of all 4 substrates, nearly 9- and 5-fold for linters and other lignocellulosic materials, respectively. Increases in maximum sugar yields under batch conditions were 60 to 140% higher than those for unmilled materials.}
journal = []
volume = {181}
journal type = {AC}
place = {United States}
year = {1979}
month = {Jan}
}