Ciencia e Ingeniería en Alimentos y Biotecnología

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Author: search.filters.author.Flores Silva, Valeria EstefaníaSubject: search.filters.subject.BIOSEGURIDAD

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    Estudio de la contaminación por la presencia de partículas biológicas aerotransportables en el relleno sanitario de la Mancomunidad GIDS Pujilí - Saquisilí
    (Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos. Carrera de Ingeniería Bioquímica, 2017-12) Flores Silva, Valeria Estefanía; Córdova Suárez, Manolo Alexander
    The aim of research was to study Study of pollution by the presence of airborne biological particles from the landfill the Commonwealth of GIDS Pujilí-Saquisilí. The sampling taked place in two points, at different times (09h00 and 12h00) and during 10 working days, in situ was registered conditions of temperature and relative humidity. Through air inoculation in the Brain Heart Infusion medium, the microbial concentration in UFC/ml was determined, the analysis showed that concentrations were below the level allowed by International proposals, it attributing the higher concentration to the treatments; a1b1c5 with a value of 22.08 UFC/ml at 17 Celsius degrees and 56 percent RH in the commons waste area and a1b2c2 with a value of 22.32 UFC/ml at 18 Celsius degrees and 52 percent RH in the hospital waste area. From the 40 samples of air taken, 64 bacteria were isolated. That with IMVIC biochemical tests were identified, this analysis showed species with enteric characteristics, such as: Enterococcus faecalis or Shigella flexneri, Salmonella or Citrobacter freundii, Pantoea agglomerans, Enterobacter cloacae type II, Staphylococcus aureus, Klebsiella pneumoniae or Enterobacter, Escherichia coli, Citrobacter Koseri and Klebsiella oxytoca, Moreover, the biological risk to which the workers of the filling were exposed was evalued, this evaluation was based on Royal Decree 664/1997. It was established that air of the landfill is composed of biological agents belonging to groups 2 and 3. This study shows that exists moderate pollution in the facilities