Premium
Production of microbial biomass on the products of mild acid hydrolysis of piggery slurry
Author(s) -
Davey G.,
Bruce J.
Publication year - 1983
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.260250303
Subject(s) - hydrolysate , cellulosic ethanol , hydrolysis , chemistry , slurry , sulfuric acid , biomass (ecology) , monosaccharide , raw material , food science , yield (engineering) , corn stover , pulp and paper industry , cellulose , organic chemistry , agronomy , biology , environmental science , materials science , environmental engineering , metallurgy , engineering
The effect of mild sulfuric acid (H 2 SO 4 ) hydrolysis on the cellulosic components of piggery slurry was investigated. Combinations of acid concentrations between 1 and 10% (w/v) and temperatures of 89, 90, and 100°C were studied with the aim of maximizing the release of soluble carbohydrates from the cellulosic constituents of piggery slurry. The highest yield of soluble monosaccharides was obtained by hydrolysis with 5% sulfuric acid at 90°C for 3 h, which produced 0.53 g of monosaccharide for every gram of cellulosic material available in raw piggery slurry. When the fungus Sporotrichum pulverulentum was cultivated on a medium prepared from this hydrolysate, a yield of 19.8 g of microbial biomass was obtained for each liter of piggery slurry hydrolyzed.