Zhang Hong-lin

Establishment of experimental model of bacterial growth under inhibitory conditions

The thermal curves ofB. subtilis andP. atruginosa were determined by using a 2277 Thermal Activity Monitor (Sweden). Under inhibitory conditions, an experimental model of bacterial growth was established. The growth rate constant (μ), deceleration rate constant (β) and optimum temperature (T) of bacterial growth were calculated.ZusammenfassungMittels eines 2277 Thermal Activity Monitor (Schweden) wurden die thermischen Kurven vonB. subtilis undP. atruginosa ermittelt. Unter Inhibitionsbedingungen wurde ein experimentelles Modell bakterielen Wachstums festgestellt. Die Wachstumsgeschwindigkeitskonstante μ, Verlangsamungskonstante α und optimale Temperature (T) für das bakterielle Wachstum wurden bestimmt.

Determination of the thermograms and establishment of the experimenal law for bacterial growth and study of kinetic properties

Abstract In this paper, we have recorded thermograms of bacterial growth using a 2277 thermal activity monitor. We have established the experimental law of bacterial growth and calculated the rate constant of the multiplication curve.

Determination of thermograms of bacterial growth and study of optimum growth temperature

Abstract In this paper, we have determined bacterial growth thermograms by using the 2277 thermal activity monitor. We have studied the multiplication curve of bacteria at different temperatures and calculated the rate constant and optimum growth temperature.

Microcalorimetric Study of the Oscillating Extraction System

The power–time curves of the oscillating extraction system were determined at different temperatures for the extraction of hydrochloric acid and acetic acid with primary amine N1923 (R–CH(NH2)–R1), R, R1 represent alkyl of C9–11 in chloroform using the titration microcalorimetric method. The apparent activation energy was calculated from the induction period (tin), the first oscillation period (tp.1) and the second oscillation period (tp.2).

Study on the thermokinetic properties of bacterial growth

The power-time curves of bacterial growth at different temperatures were determined by using the 2277 Thermal Activity Monitor (Sweden). From these curves, the growth rate constant (μ) and activation energy (Ea) were calculated. According to the transition state theory of reaction dynamics, the activation entropy (ΔS≠), activation Gibbs free energy (ΔG≠) and equilibrium constant (K≠) of the activation state could be calculated. These results permitted thermodynamic analysis of the bacterial growth metabolism.

Study of a Biological Oscillation System by a Microcalorimetric Method

The power–time curves of a biological oscillation system were determined for different temperatures, acidities and carbon sources, by using a 2277 thermal activity monitor. The apparent activation energy and order of the oscillation reaction were calculated from the induction period (tin) and the first oscillation period (tp). The regularity of the biological oscillation system is discussed.

Determination of the reaction heat and studies of thermodynamic functions

The hydrolytic polymerization of Cr3+ at relatively high concentrations was studied by microcalorimetry. The thermal curves were determined with a 2277 thermal activity monitor. From the curves, the identified reaction heats (δrHmσ), hydrolysis constants (K) and thermodynamic functions (δrSmσ,δrHmσ) were calculated at different temperatures.

A study of the optimum fungistatic action of a synthetic medicine using a microcalorimetric method

Abstract In this paper, we have determined bacterial growth thermograms using a thermal activity monitor. We have also determined bacterial growth thermograms of inhibitor and have studied the fungistatic action of a synthetic medicine (W2). We have calculated the rate constant at different concentrations and with the optimum allowable concentration of the synthetic medicine W2.

Establishment of The Power—Time Curve Equation of Bacterial Growth in the Log Phase

AbstractThe power-time curves of two species of bacteria, Vibro metschnikovii, Vibro bollisae were determined calorimetrically by using a 2277 bioactivity monitor. The power-time curve equation of bacterial growth in the log phase can be expressed as