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Revista de la Facultad de Medicina Veterinaria y de Zootecnia
versión impresa ISSN 0120-2952
Resumen
GONZALEZ, R. et al. Effect of formaline gas on the counting of mesophiles in commercial. Rev. Med. Vet. Zoot. [online]. 2020, vol.67, n.1, pp.33-41. ISSN 0120-2952. https://doi.org/10.15446/rfmvz.v67n1.87674.
Hie present research work was carried out with the purpose of evaluating the effect of formalin gas on the count of mesophiles in commercial nylon (polyamide) destined to surgical procedures. Firstly, the contamination of a 1 g commercial nylon sample, exposed to the operating room environment for 72 hours, was evaluated through the plate counting technique for mesophiles; it yielded a result of 850 CFU / gram. Once the contamination of the commercial polyamide was checked, it was subjected to formalin gases in tablets. Five nylon samples (n=5) of 1 gram each were placed in 5 1 liter airtight containers containing 1 gram of formalin; Hese containers were stored in a cabinet in the sterilization room one meter above the floor, and later opened and cultivated through the plate counting technique for mesophiles, one per day for 5 days at 24 hour intervals. The results obtained after being exposed to formalin gases in tablets did not register growths of microorganisms after 24 hours and during the 5 days after the study, finding statistically significant differences (p < 0.05) in relation to the studied times concluding under the conditions of the present study that the sterilization time of the formalin on commercial nylon is equal to 24 hours.
Palabras clave : formalin; sterilization; commercial nylon; count of mesophiles.