Water Treatment Microbiocide is a synergistic blend of glutaraldehyde and quaternary ammonium salt which is specially formulated to provide a surface-active product that can clean and penetrate microbiologically-fouled surfaces. It is effective in controlling slime-forming and sulfate-reducing bacteria and algae. The ease of handling and high potency of Water Treatment Microbiocide facilitate its use in recirculating cooling towers, air washer systems, recirculating process water and closed loop cooling systems. It kills microbes such as bacteria, viruses, and fungi and used in disinfectant or antibacterial products.

A culture medium is any nutrient liquid or solid that can be used in the laboratory & for the growth of micro organisms. Such a medium may resemble a natural substrate on which the micro organism will usually grow like blood serum for animal pathogen milk for milk micro organism. Distilled water is used to dissolve all to medium components. Peptones are used as a nitrogen source & it has another function in the medium that is buffering material, because it is an amphoteric compound it can maintain the medium PH Carbohydrates, peptides, amino acid and proteins are used as an energy source. Usually beef extract is used as a growth factor. Gelatin or agar agar is used as a solidifying agent. Media can be classified based on texture as liquid media, solid media, reversible to liquid, semi solid media. Selective media is used to isolate one species of micro organism and inhibit the growth of another micro organism. Differential media-in which we add a natural or chemical compounds differentiate microbial groups which may be formed in the same culture. Enriched media-in which we need to add blood serum or plant tissues to enrich the growth of specific groups of micro organism like heterophilic bacteria.

Microcarriers are small solid or in some cases immiscible liquid spheres, on which cells may be grown in suspension culture. They provide a means of obtaining large yields of cells in small volumes. The cells must exhibit anchorage dependence of growth and the dimensions of the carrier bead may be important in controlling growth rate. Microcarriers are support matrices allowing for the growth of adherent cells in bioreactors. Carrier materials for cells may be composed by gelatin, porous glass, collagen or cellulose, with dimensions of 170 - 6000 µm. Well known brands include Cytodex™, (Pharmacia) or Cultispher™ (Hyclone).