From the analysis of the chemical composition of six kind of mineral dusts and the changes of number of colony, pH, glucose (GLU) and electrolyte after the dusts acted with S. epidernidis. Compared the chemical composition and physics properities of dusts on experiment index bacteria.
From the analysis of the chemical composition of six kinds of mineral dusts and the variation of pH value,glucose(GLU),electrolyte and Mn,Si,Fe after the dusts acted with silicate bacterium S35,by comparing the influences of the chemical composition and physical properties of dusts on experimental index bacteria, then through SEM analyses,this paper studied the bacterial form and interface action in the action process of dusts and bacteria.
The binding of target bacteria with the immobilized antibodies decreased the sensor's resonant frequency, and the frequency shift was correlated to the bacterial concentration.
The availability of purified enterocin EJ97 will facilitate other studies such as the elucidation of its molecular structure and its interaction with target bacteria.
Colicin Ia is a bactericidal protein that forms voltage-dependent, ion-conducting channels, both in the inner membrane of target bacteria and in planar bilayer membranes.
Fifty strains of non pathogenic bacteria were isolated from tobacco rhizospheric soil,stems and leaves of tobacco,cucumber,tomato and mulberry plants.The biological inhibitions of the strains were determinated under culture conditions.The results showed that the non plthogenic bacteria were inhibitive to Alternaria alternata.Among the fifty strains,the inhibition of the strains isolated from tobacco rhizospheric soil was the strongest.After treated by the antagonists,the formation appeared and growth of m...
The target bacterium for the extractive bioconversion were selected and cultured. A cotynebactrium solution was produced.In the Tween80 /potassium phosphate liquid- solid extraction system,the biocatalyst of acrylamide from acrylonitrile was carried out by using this bacterium.The bioconversion product is detected by gas chromatography.The linear range GC response for acrylamide is (0 .5~ 3.0 )× 1 0 - 3 μg.In the liquid- solid extraction system the total salt concentration is1 .89mol· L- 1 ;K2 HPO4:KH2...
Objective A test of bacteriostatic effect and study of detecting method were conducted on the 12 kinds of antibacterial materials.Method Two kinds of microbe, Staphylococcus aureus and E.coli were taken as target bacteria.Results The bacteriostatic rates on both of the two bacteria were 99% in 7 types of the antibacterial products and over 80% in the others. Meanwhile, the effect of form and external area of these products and reacting time on the bacteriostatic rate was also observed.Conclusion A rapid...