Maximizing the enzymic saccharification of corn stover /

'C using 0. 075 g Ca(OH)2/g dry biomass and 5 g H20/g dry

Bibliographic Details
Main Author: Kaar, William Edward, 1962-
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1996.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:'C using 0. 075 g Ca(OH)2/g dry biomass and 5 g H20/g dry
1 model are reduced which results in higher effective
and 97.4% and 93.3 % of the total sugars for Tween 20 and
and waste paper) comprises three major components:
as 75% polysaccharide; thus, biomass has considerable
biomass. The maximum sugar yield bv enzymic hydrolysis (25
can be effectively saccharified, some pretreatment is
cellulose, hemicellulose and lignin. It can contain as much
corn stover is 88.0% of the glucose and 88.1% of the total
dry biomass. Tween 20 and Tween 80 are effective at
easier to recover than other alternatives. The reconunended
enzyme effector, and fignoceflulose matrix disrupter.
enzyme loading to 3 FPU ceflulase/g dry biomass. The action
FPU ceflulase/g dry biomass, 50 'C, 7 days) of pretreated
from biomass is by enzymic saccharification. Before biomass
hydrolysis rates. (3) The maximum enzymic digestion, which
improving the enzymic saccharification of corn stover. The
is independent of enzyme effects, is higher with Tween.
Lignocellulosic biomass (e.g. agricultural residues, wood,
municipal solid waste, tree and yard t gs, sewage sludge,
of Tween is three-fold: (1) Time profiles show that enzymes
parameter. Adding Tween to the hydrolytic medium increases
potential as a fermentation feedstock. Corn stover
pretreatment agent for corn stover and is less expensive and
process conditions for treating corn stover are 4 h at 120
recommended loading of Tween is 0. 15 g Tween/g dry biomass;
remain active at higher temperatures in the presence of
represents an especially important resource because it is
required. Calcium hydroxide (Eme) is an effective
sugars. The recommended enzyme loading is IO FPU ceUulase/g
the adsorption and coverage parameters, a and c, in the HCH-
the loading, rather than the concentration, is the critical
the maximum sugar yield to I 00% and 94.8% of the glucose
the single largest source of agricultural residue in the
theoretical maximum hydrolysis rate is unchanged by Tween,
Thus, the action of Tween is a combination of surfactant,
Tween 80, respectively. Tween also reduces the recommended
Tween. (2) Kinetic analyses show that, although the
United States. The best method to obtain fermentable sugars
Item Description:"Major subject: Chemical Engineering".
Vita.
Physical Description:xii, 96 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references: pages 73-74.