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Extracellular microbial polysaccharides. I. Substrate, biomass, and product kinetic equations for batch xanthan gum fermentation
Author(s) -
Weiss Rebecca M.,
Ollis David F.
Publication year - 1980
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.260220410
Subject(s) - substrate (aquarium) , xanthan gum , biomass (ecology) , chemistry , fermentation , logistic function , product (mathematics) , extracellular polysaccharide , polysaccharide , extracellular polymeric substance , chromatography , biological system , food science , thermodynamics , mathematics , biochemistry , ecology , biology , statistics , bacteria , biofilm , physics , geometry , rheology , genetics
Various biomass ( X ), product ( P ), and substrate ( S ) rate equations are considered in order to synthesize a general xanthan fermentation model from literature data. Analytical forms that provide reasonable descriptions for the X , P , and S behaviors reported by Moraine and Rogovin are shown to be the logistic equation, the Luedeking–Piret equation a modified Luedeking‐Piret equation, respectively. The autonomous logistic equation allows the serial evaluation of parameters for all thee equations, rather than a simultaneous determination required by nonautonomous models.