Bacteriostatic Substances

Bacteriostatic Substances

 

antibiotics, metallic ions (Ag+, Au3+, Hg2+, Cu2+), chemotherapeutic drugs (sulfanilamides, arsenicals), and other substances that completely inhibit propagation of bacteria or other microorganisms, that is, which cause bacteriostasis. The action of bacteriostatic substances is reversible: when they are removed or when deactivators of bacteriostatic substances are added, bacterial growth is resumed. For example, the action of metallic ions ceases in the presence of hydrogen sulfide, which rids the bacterial cell surface of the ions. The effects of bacteriostatic substances are also curtailed by substances with high adsorptive capacity (for example, proteins). This explains the decrease in activity of bacteriostatic substances in the presence of blood, pus, and so on. In small concentrations, bactericidal substances also have a bacteriostatic effect. Bacteriostatic substances act as medications by suppressing the reproduction of pathogenic microbes in the bodies of man and animals. By means of bacteriostatic substances harmless to man, various food products—wine must, milk, and others—are protected from microbial spoilage. For this purpose, benzoic acid or exposure to sulfur dioxide gas, hydrogen peroxide, and various antibiotics not used in medical practice are used.

A. A. IMSHENETSKII

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Contract notice for Delivery of the printing machine with overlapping section bacteriostatic substances with the installation and commissioning of the plant employer for commercial enterprises dobis sp.
The most commonly observed fraud involves the addition of water associated to density restoratives or cheese whey to increase volume; neutralizing substances such as sodium bicarbonate and sodium hydroxide to mask the acidity caused by microorganisms; and preservatives such as hypochlorite, chlorine, hydrogen peroxide, formaldehyde, and bactericides or bacteriostatic substances to control microorganism growth and prolong product shelf life (KARTHEEK et al.
Copper (II) ions (Cu2+) are soluble in water where they function at low concentration as bacteriostatic substances fungicides and wood preservatives.
The contract is for the supply of printing press section overlapping bacteriostatic substances with the installation and commissioning of the plant employer for commercial enterprises dobis sp.