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Prediction of the degradability of sugarcane celulosic residues by indirect methods
Author(s) -
Cabello Agustín,
Conde José,
Otero Miguel A.
Publication year - 1981
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260231208
Subject(s) - bagasse , pith , solubility , rumen , chemistry , straw , cellulosic ethanol , cellulose , organic matter , dry matter , reagent , pulp and paper industry , agronomy , organic chemistry , botany , biology , fermentation , inorganic chemistry , engineering
The effect of mild NaOH treatments on sugarcane cellulosic wastes (bagasse, pith, and straw) to increase their biological degradability has been studied. At a level of 8% NaOH (on a dry matter basic) 60% digestibility measured by the in vitro technique was achieved for all materials tested. Indirect methods to predict the digestibility of treated materials such as the bacterial degradability, enzymatic degradability, hot‐water solubility, and chemical oxygen demand were tried as alternative methods to the rumen fluid technique. High correlation coefficients for all materials were obtained with all alternative techniques. The minimal r value was 0.96 while the highest was 0.99. An important reduction of time and reagents is achieved by the utilization of the solubility and chemical oxygen demand tests.