Kinetic model identification in mixed populations using continuous culture data

Chiu, Sss; Erickson, Larry E.; Fan, L.T.; Kao, I. C.

doi:10.1002/bit.260140206

Cited by 44 publications

(6 citation statements)

References 23 publications

(4 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(4) was intended to describe the kinetics of pure cultures, this equation has been employed to deal with mixed and natural microbial populations, e.g. [41,[43][44][45][46]. Consequently, it is fair to compare and contrast Eq.…”

Section: Introductionmentioning

confidence: 99%

A kinetic model for microbic organic-matter decomposition in marine sediments

Boudreau

1992

FEMS Microbiology Letters

View full text Add to dashboard Cite

SUMMARYThe microbial decomposition of organic matter in marine sediments has been described using a rate law which is linear in the concentration of the metabolizable organic matter, entirely independent of the biomass concentration, and displays a Monod-like dependence on the concentration of the oxidant species being utilized. This paper develops a quasi-reaction mechanism to explain these observed dependencies. The Monod dependence on the oxidant concentration and the biomass independence can both be traced back to the preponderance of occupied sites on the organic matter and pseudo-steady state concentrations of occupied sites during most of the decay process. In the framework of the proposed reaction scheme, the linearity of the rate with the organic matter concentration is possible only if there is a linear proportionality between surface area and mass of organic matter.The rate law described above divides natural organic matter into a finite collection of reactive types. This paper also reformulates this rate law model in terms of a continuum of reactive types as proposed by Boudreau and Ruddick (Am. J. Sci. 291, 507-538, 1991). It is shown that this continuum model can produce a better fit to kinetic rate data than the discrete model.

show abstract

Section: Introductionmentioning

confidence: 99%

A kinetic model for microbic organic-matter decomposition in marine sediments

Boudreau

1992

FEMS Microbiology Letters

View full text Add to dashboard Cite

show abstract

“…We will restrict ourselves to the use of chemostats to study differential growth rates associated with induced, naturally occurring, or genetically engineered mutations, as well as with the growth rate effects of plasmids, temperate phage, and transposons. Other areas of the literature include rich and diverse studies of the dynamics of growth in chemostats (e.g., 22); inquiries into the nature of single-nutrient and dual-nutrient limitation (e.g., 25,30); experiments on the physiology and metabolism of cells growing under specified chemostat conditions (e.g., 115, 116, 126); and studies of microbial VOL. 47,1983 ecology involving single or mixed species in chemostats with single or mixed resources (e.g., 36,45,54,68,114,117).…”

Section: Introductionmentioning

confidence: 99%

Selection in chemostats.

Dykhuizen¹,

Hartl²

1983

Microbiological Reviews

255

117

View full text Add to dashboard Cite

“…ship was obtained as expressed in equation 3 However, interestingly, extrapolation to zerc dilution rate gave a negative value for the specif ic rate of adenine utilization. This negative main tenance coefficient shows apparent value, for ii may have resulted from cell turnover, resupplying of adenine to the medium by lysing cells (12) and incomplete utilization of adenine at lowei dilution rates.…”

Section: Resultsmentioning

confidence: 99%

Kinetics of substrate utilization in adenine-limited chemostat cultures of Bacillus subtilis KYA741

Tsuchiya¹,

Kimura²

1982

Appl Environ Microbiol

View full text Add to dashboard Cite

The specific rates of limiting substrate utilization were investigated in adenine- or glucose-limited chemostat cultures of Bacillus subtilis KYA741, an adenine-requiring strain, at 37 degrees C. With the glucose-limited cultures, the specific rate of glucose consumption versus dilution rate gave a linear relationship from which the true growth yield and maintenance coefficient were determined to be 0.09 mg of bacteria per mg of glucose and 0.2 mg of glucose per mg of bacteria per h, respectively. With the adenine-limited cultures, adenine as the limiting substrate was not completely consumed at lower dilution rates (e.g., D less than 0.1), unlike in the glucose-limited cultures. When a linear relationship of specific rate of adenine consumption versus dilution rate was extrapolated to zero dilution rate, a negative value for the specific rate of adenine consumption, -0.01 mg of adenine per mg of bacteria per h, was obtained, giving a true growth yield for adenine of 5.2 mg of bacteria per mg of adenine. On the other hand, the maintenance coefficient of oxygen uptake gave a positive value of 8.1 x 10(-3) mmol/mg of bacteria per h. Based on previous results showing that adenine is resupplied by lysing cells, we developed kinetic models of adenine utilization and cell growth that gave a good estimation of the peculiar behavior of cell growth and adenine utilization in adenine-limited chemostat cultures.

show abstract

Kinetic model identification in mixed populations using continuous culture data

Cited by 44 publications

References 23 publications

A kinetic model for microbic organic-matter decomposition in marine sediments

A kinetic model for microbic organic-matter decomposition in marine sediments

Selection in chemostats.

Kinetics of substrate utilization in adenine-limited chemostat cultures of Bacillus subtilis KYA741

Contact Info

Product

Resources

About