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  • Title: [Laboratory studies of Salmonella decontamination in bone meal using propionic acid].
    Author: Kleiner U, Trenner P, Grützke B.
    Journal: Zentralbl Hyg Umweltmed; 1991 Sep; 192(2):146-53. PubMed ID: 1750967.
    Abstract:
    Laboratory investigations centered on determining the concentration and time of influence of propionic acid to decontaminate salmonella in bone meal as well as on the inhibitory effect of reanimation and recontamination. Tests have been conducted by means of contaminated bone meal charges either naturally or artificially stressed. Findings revealed, that freedom of salmonella could be achieved ranging between one hour and 21 days when adding 3% of propionic acid to the bone meal dependent on the stress of salmonella. Evidence could be proved to the inhibitory effect of reanimation of propionic acid at least one week after the entry of action. Protection of the bone meal treated with 3% of propionic acid against new contamination of salmonella has proved to be independent of the rate of recontamination. Freedom of salmonella lasting for two or three weeks could be stated after a holding time of one day.
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