Biocida

Páginas: 2 (271 palabras) Publicado: 10 de noviembre de 2012
Biocide
Biocides may be synthetic chemicals or natural or microorganisms that are intended to destroy, deter, render harmless, prevent the action or exercise control over anyother body considered harmful to humans.
Mechanisms of action
Biocides usually act at the cell membrane of the organism, penetrating and destroying the systems that allow theorganism to live. The biocide causes lysis of the wall lipo protein or protein of the body and penetrates inside disrupting biochemical reactions that sustain life in the body.BiocidasSe types can be presented in three ways:
Physical Sources of high energy radiation (UV) oxidizing the wall protein and almost burned the microorganism.
Organic: Substancescreated by higher organisms for self-defense, usually are of a protein and are called enzymes. For example lysozyme.
Chemical: These can be in turn, inorganic or organic synthesis. Egchlorine dioxide (ClO2), isothiazolines, chloramines, alkyl bromides, alkyl or aryl chlorides, etc..
Conditions for good biocidaDebe have a broad spectrum of activity, ie it mustcover a wide range of microorganisms (bacteria, viruses and fungi).
Effective at low concentration: The lower dose, is more economical treatment.
Effective over a wide pH range.Soluble in water.
Compatible with other chemical species in the medium.
High persistence: To be effective over time.
Easy to neutralize: You must have mechanisms for subsequentneutralization deactivators.
Low human toxicity: Not to be detrimental in their safe handling by the operator.
The phenolic coefficient is a value that is performed experimentalsubstances have biocidal properties, with reference to the biocidal capability of the phenol
http://www.quiminet.com/articulos/conozca-el-metodo-de-accion-de-un-biocida-2735339.htm
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