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Enzymatic saccharification of hemicellulose obtained from hydrothermally pretreated sugar can bagasse and beech bark

Abstract

Characteristics of different xylanses and their use in the saccharification of sugar cane bagasse and beech bark were studied. Bagasse was pretreated by two different hydrothermolysis procedures, a recirculation and a direct flow-through process. The recirculation procedure resulted in a higher yield of dry matter in the hydrothermolysis solution and a higher saccharification effect after enzymatic hydrolysis. In the case of beech bark, the tannins have first to be removed at temperatures of 120-140{sup o}C. In a second hydrothermal step (at approximately 200{sup o}C), a hemicellulose solution is obtained which can be saccharified enzymatically with high yields. The inhibitory effect of the tannins is experimentally demonstrated. (author).
Authors:
Walch, E; Zemann, A; Bonn, G; Bobleter, O; [1]  Schinner, F [2] 
  1. Innsbruck Univ. (Austria). Inst. fuer Radiochemie und Angewandte Physikalische Chemie
  2. Innsbruck Univ. (AT). Inst. for Microbiology
Publication Date:
Jan 01, 1992
Product Type:
Conference
Report Number:
CONF-8909465-
Reference Number:
GB-91-052718; EDB-92-026583
Resource Relation:
Journal Name: Bioresource Technology; (United Kingdom); Journal Volume: 39:2; Conference: 4. international Energy Agency workshop on biotechnology for the conversion of lignocellulosics, Lund (Sweden), 7-12 Sep 1989
Subject:
09 BIOMASS FUELS; HEMICELLULOSE; ENZYMATIC HYDROLYSIS; SACCHARIFICATION; ORGANIC WASTES; AUTOHYDROLYSIS; BAGASSE; BARK; BEECH TREES; FERMENTATION; SUGAR CANE; TANNIC ACID; XYLANASE; AGRICULTURAL WASTES; AROMATICS; BIOCONVERSION; BODY; CARBOHYDRATES; CARBOXYLIC ACIDS; CHEMICAL REACTIONS; DECOMPOSITION; ENZYMES; GLYCOSYL HYDROLASES; GRAMINEAE; HEAT TREATMENTS; HYDROLASES; HYDROLYSIS; HYDROXY COMPOUNDS; LILIOPSIDA; LYSIS; MAGNOLIOPHYTA; MAGNOLIOPSIDA; O-GLYCOSYL HYDROLASES; ORGANIC ACIDS; ORGANIC COMPOUNDS; PHENOLS; PLANT TISSUES; PLANTS; POLYPHENOLS; POLYSACCHARIDES; PROTEINS; REEDS; SACCHARIDES; SOLVOLYSIS; TISSUES; TREES; WASTES; 090900* - Biomass Fuels- Processing- (1990-)
OSTI ID:
5988666
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0960-8524; CODEN: BIRTE
Submitting Site:
GB
Size:
Pages: 173-177
Announcement Date:

Citation Formats

Walch, E, Zemann, A, Bonn, G, Bobleter, O, and Schinner, F. Enzymatic saccharification of hemicellulose obtained from hydrothermally pretreated sugar can bagasse and beech bark. United Kingdom: N. p., 1992. Web.
Walch, E, Zemann, A, Bonn, G, Bobleter, O, & Schinner, F. Enzymatic saccharification of hemicellulose obtained from hydrothermally pretreated sugar can bagasse and beech bark. United Kingdom.
Walch, E, Zemann, A, Bonn, G, Bobleter, O, and Schinner, F. 1992. "Enzymatic saccharification of hemicellulose obtained from hydrothermally pretreated sugar can bagasse and beech bark." United Kingdom.
@misc{etde_5988666,
title = {Enzymatic saccharification of hemicellulose obtained from hydrothermally pretreated sugar can bagasse and beech bark}
author = {Walch, E, Zemann, A, Bonn, G, Bobleter, O, and Schinner, F}
abstractNote = {Characteristics of different xylanses and their use in the saccharification of sugar cane bagasse and beech bark were studied. Bagasse was pretreated by two different hydrothermolysis procedures, a recirculation and a direct flow-through process. The recirculation procedure resulted in a higher yield of dry matter in the hydrothermolysis solution and a higher saccharification effect after enzymatic hydrolysis. In the case of beech bark, the tannins have first to be removed at temperatures of 120-140{sup o}C. In a second hydrothermal step (at approximately 200{sup o}C), a hemicellulose solution is obtained which can be saccharified enzymatically with high yields. The inhibitory effect of the tannins is experimentally demonstrated. (author).}
journal = {Bioresource Technology; (United Kingdom)}
volume = {39:2}
place = {United Kingdom}
year = {1992}
month = {Jan}
}