Document Type
Article
Publication Date
1-1-2008
Abstract
A kinetic model is presented giving a mathematical description of batch culture of Pseudomonas putida PGA1 grown using saponified palm kernel oil as carbon source and ammonium as the limiting nutrient. The growth of the micro-organism is well-described using Tessier-type model which takes into account the inhibitory effect of ammonium at high concentrations. The ammonium consumption rate by the cells is related in proportion to the rate of growth. The intracellular production of medium-chain-length poly-(3-hydroxyalkanoates) (PHAMCL) by P. putida PGA1 cells is reasonably modeled by the modified Luedeking-Piret kinetics, which incorporate a function of product synthesis inhibition (or reduction) by ammonium above a threshold level.
Keywords
Ammonium, Kinetic, Medium-chain-length PHA, P. Putida, Substrate-inhibition, Batch cell culture, Biochemical engineering, Biochemistry, Cell culture, Chain length, Kinetic theory, Batch cultures, Carbon sources, Chain lengths, Consumption rates, High concentrations, Hydroxyalkanoates (PHA), Inhibitory effects, Intracellular production, Kinetic modelling, Mathematical descriptions, Palm kernel oil (PKO), Product synthesis, Pseudomonas putida, Threshold levels, Ammonium compounds
Divisions
fac_eng
Publication Title
Brazilian Journal of Chemical Engineering
Volume
25
Issue
2
Publisher
Brazilian Society of Chemical Engineering
Additional Information
307HK Times Cited:6 Cited References Count:19