valuación del Efecto de Desinfectantes y Desangrantes Naturales en Equipos de Pasteurización de una Planta de Lácteos.

Abstract

The research was conducted at the Dairy Plant Tunshi – ESPOCH, in the pasteurizer equipment (balance tank, piping, skimmer and packaging), that were subject to the evaluation of the effect of disinfectants and degreasing solutions, obtained from eucalyptus, pine and myrtle wood ash; for the washing equipment. The use of these solutions was pretended to replace the caustic soda in pure form that causes health problems in the workers and the environment. The research was under development Completely Random Design with four treatments: caustic soda, eucalyptus, pine and myrtle solutions, and four replicates per treatment. We evaluated physicochemical characteristics of the solutions, microbiological parameters in the all equipments of study and comparisons of cost between solutions. Within the physicochemical characteristics the most alkaline product was the caustic soda which reported a pH of 11,23 and the less alkaline was the pine solution with a pH of 8,38; all being within the range determined by the standard INEN. All solutions exhibit degreasing capability. In the microbiological parameters none of the solutions kill all the microorganisms, the caustic soda is the most effective and economical solution for each liter has value of $0,90, followed by the solution of myrtle with the disadvantage of being very expensive since each liter of solution cost $1,93. The eucalyptus solution gave us good results and each liter of solution cost $1,07, so its use is recommended.