Growth factors and growth inhibitors for micro-organisms.

Assessing the Biological Inhibitors Effect on Crude Oil Wax Appearance Temperature Reduction

To assess the effect of micro-organisms on the reduction of wax appearance temperature (WAT) of waxy crude oil, some appropriate strains were obtained from contaminated samples exposed to hydrocarbon compounds for a long time. By conducting some screening tests, four strains were chosen and aerated in a bioreactor; they were then grown in some hydrocarbon environments in order to produce biolog...

Growth of Pneumocystis Carinii in Axenic Culture

SUMMARY In this research, which was done for two years, we investigated various liquid and solid media without feeder ceells, for the ability to support growth of P. carinii. Data obtained from counting the organisms nuclei showed that, addition of Cyclo­heximide, penicillin, & streptomycin to neopeptone­N-Acetyle Glucoseamine (N.P.G. medium) can provides growth requirements of organism in its...

Gradient Plate for Hicomb Minimum Inhibitory Concentration (MIC) Test

Abstract Background and objectives: "The comb antibiotic sensitivity test" is a quick, reliable and cost effective method to determine the susceptibility of bacteria to different antibiotics. The purpose of this study is to design a plate that is easy and quick to use, and enable to be interpreted easily without the need for measurement of the margins with a ruler. Material and Method...

The study of antimicrobial effects of ethanolic, methanolic and aqueous extracts of six species of Fessia (Asparagaceae) on some pathogenic bacteria and Candida albicans

In this research, the antimicrobial effects of ethanolic, methanolic and aqueous extracts obtained from aerial parts, leaves and bulbs of six species of Fessia were investigated on the growth of some of micro-organisms, including Staphyloccocus aureus, Bacillus anthracis, Kelebsiella pneumonia and Candida albicans. Plant samples were collected from natural habitats and were then identified. The...

Endogenous growth promotors and inhibitors in tahiti lime