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Preservatives

Date:2014年5月27日 16:45

Speaking preservatives, people tend to think that harmful, in fact, within the safe range, non-toxic side effects on the human body. Preservatives are divided into four categories: First, organic acids and their salts; Second, the neutral compounds; Third, organic mercury class; four, quaternary ammonium compounds. Preservative effect is to inhibit microbial growth and reproduction of the material. The fungicide is able to destroy and kill microorganisms substances. Preservatives on microbial propagules killing effect on spores then it can not develop into propagules gradually died. The mechanism of action of different preservatives are not identical. Pathogenic microorganisms such as alcohols can denature proteins; benzoic acid, parabens can be combined with pathogenic microbial enzyme systems, and blocking its influence metabolic processes; cationic surfactant class has reduced surface tension, increase cell membrane permeability, membrane rupture and dissolved.

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