Biopelículas Terciarias: Fuerza de Ruptura y Efecto sobre la Vida Útil de Cortes de Tilapia Negra (Oreochromis niloticus)

Abstract

The aim of this study was to determine the breaking force of a tertiary biofilm and to establish the effect of its applications on the microbiological shelf life of black tilapia cuts (Oreochromis niloticus). The shelf life of tilapia was estimated by the Monod Hinshelwood equation, prior modeling of the kinetic data with the help of computer program Dmfit. Tertiary biofilms were subjected to tensile tests using a texturometer. The results showed that tertiary biofilm have weak rupture forces (0.202 N) which can be caused by the weak interaction between the components used. Biofilms were able to increase the microbiological shelf life of the tilapia cuts by 29.3 % representing a good alternative for the conservation of fishery products.