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Composition and nutritional evaluation of Aspergillus oryzae biomass grown on palm oil processing effluents
Author(s) -
Barker Trevor W.,
Drouliscos Nicholas J.,
Worgan Jeffrey T.
Publication year - 1981
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740321010
Subject(s) - aspergillus oryzae , food science , biomass (ecology) , amino acid , chemistry , hydrolysate , essential amino acid , palm oil , composition (language) , single cell protein , biology , fermentation , biochemistry , agronomy , hydrolysis , linguistics , philosophy
Aspergillus oryzae biomass grown on effluents produced during the extraction of palm oil was found to have a crude protein content of 39.6 g 100 g −1 and a ‘true protein’ content of 32.1 g 100 g −1 . Amino acid analysis showed that the essential amino acid content was 58.2 g 16 g −1 N and the essential amino acid index was calculated to be 87.4. The sulphur‐containing amino acids were present at a combined level of 2.8 g 16 g −1 . In rat feeding trials the biomass had a biological value of 0.68 ± 0.03, a net protein utilisation of 0.65 ± 0.05 and a true digestibility of 0.96 ± 0.05 based on its crude protein content. No unusual fatty acids were detected in the biomass.