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Hydrocarbon fermentation: kinetics of microbial cell growth

Abstract

Modeling of microbial growth using nonmiscible substrate is studied when kinetics of substrate dissolution is rate limiting. When the substrate concentration is low, the growth rate is described by an analytical relation that can be identified as a Contois relationship. If the substrate concentration is greater than a critical value S/sub crit/, the potentially useful hydrocarbon S* concentration is described by S* = S/sub crit//(1 + S/sub crit//S). A relationship was found between S/sub crit/ and the biomass concentration X. When X increased, S/sub crit/ decreased. The cell growth rate is related to a relation ..mu.. = ..mu../sub m/(A(X/S/sub crit/)(1 + S/sub crit//S) + 1)/sup -1/. This model describes the evolution of the growth rate when exponential or linear growth occurs, which is related to physico-chemical properties and hydrodynamic fermentation conditions. Experimental data to support the model are presented.
Authors:
Goma, G; [1]  Ribot, D
  1. Institut National des Sciences Appliquees, Toulouse
Publication Date:
Nov 01, 1978
Product Type:
Journal Article
Reference Number:
ERA-04-017154; EDB-79-027702
Resource Relation:
Journal Name: Biotechnol. Bioeng.; (United Kingdom); Journal Volume: 20:11
Subject:
59 BASIC BIOLOGICAL SCIENCES; BIOMASS; GROWTH; HYDROCARBONS; FERMENTATION; BIOCHEMICAL REACTION KINETICS; CANDIDA; MATHEMATICAL MODELS; SINGLE CELL PROTEIN; BIOCONVERSION; ENERGY SOURCES; FUNGI; KINETICS; MICROORGANISMS; ORGANIC COMPOUNDS; PLANTS; REACTION KINETICS; RENEWABLE ENERGY SOURCES; YEASTS; 550700* - Microbiology
OSTI ID:
6776872
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: BIBIA
Submitting Site:
TIC
Size:
Pages: 1723-1734
Announcement Date:
Jan 01, 1979

Citation Formats

Goma, G, and Ribot, D. Hydrocarbon fermentation: kinetics of microbial cell growth. United Kingdom: N. p., 1978. Web. doi:10.1002/bit.260201104.
Goma, G, & Ribot, D. Hydrocarbon fermentation: kinetics of microbial cell growth. United Kingdom. https://doi.org/10.1002/bit.260201104
Goma, G, and Ribot, D. 1978. "Hydrocarbon fermentation: kinetics of microbial cell growth." United Kingdom. https://doi.org/10.1002/bit.260201104.
@misc{etde_6776872,
title = {Hydrocarbon fermentation: kinetics of microbial cell growth}
author = {Goma, G, and Ribot, D}
abstractNote = {Modeling of microbial growth using nonmiscible substrate is studied when kinetics of substrate dissolution is rate limiting. When the substrate concentration is low, the growth rate is described by an analytical relation that can be identified as a Contois relationship. If the substrate concentration is greater than a critical value S/sub crit/, the potentially useful hydrocarbon S* concentration is described by S* = S/sub crit//(1 + S/sub crit//S). A relationship was found between S/sub crit/ and the biomass concentration X. When X increased, S/sub crit/ decreased. The cell growth rate is related to a relation ..mu.. = ..mu../sub m/(A(X/S/sub crit/)(1 + S/sub crit//S) + 1)/sup -1/. This model describes the evolution of the growth rate when exponential or linear growth occurs, which is related to physico-chemical properties and hydrodynamic fermentation conditions. Experimental data to support the model are presented.}
doi = {10.1002/bit.260201104}
journal = []
volume = {20:11}
journal type = {AC}
place = {United Kingdom}
year = {1978}
month = {Nov}
}