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Steric hindrance of growth of filamentous fungi in solid substrate fermentation of wheat straw
Author(s) -
Laukevics J. J.,
Apsite A. F.,
Viesturs U. S.,
Tengerdy R. P.
Publication year - 1985
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.260271209
Subject(s) - steric effects , trichoderma reesei , mycelium , straw , fermentation , substrate (aquarium) , biomass (ecology) , chemistry , solid state fermentation , botany , food science , biology , agronomy , biochemistry , stereochemistry , enzyme , cellulase , inorganic chemistry , ecology
Cellulolytic fungi, such as Trichoderma reesei , T. lignorum , and Chaetomium cellulolyticum reach a low packing density of mycelia when grown on straw under conditions of solid substrate fermentation. The low packing density is shown to be caused partially by the geometric limitation of the growth of mycelia in the substrate and particularly in its pores, but the exact contribution of this limitation and other limitations such as mass transfer and substrate availability cannot be easily distinguished. The combined effect of such limitations is called steric hindrance. This steric hindrance is associated with and may be the principal cause of low biomass concentration in SSF.