Resumen de Análisis tixotrópico de leches condensadas
Albert Ibarz Ribas, I. García, Jaume Puy Llorens
- español
En este trabajo se presenta un estudio sobre el comportamiento tixotrópico de leches condensadas, así como de su evolución a lo largo de un proceso de almacenamiento.
Para cuantificar dicho comportamiento tixotrópico se han utilizado los modelos de Hahn et al. y de Weltman.
- English
This work shows a research on the rheologic behaviour of milk samples with different content in their components.
Having a commercial sample of concentrated milk, different samples diluted in distilled water can be prepared.
To begin with, the effect of the temperature on the rheologic behaviour of the sample of concentrated milk is studied, adjusting the variation of the viscosity to an equation of the exponential type.
For a fixed 25ºC temperature it is studied the rheologic of the different samples which have been obtained by dilution and therefore an expression that describes the variation of the rheologic behaviour with the concentration is obtained.
It has been observed that the sample of concentrated milk displays some thixotropyc behaviour. So being studied that, it can be seen the dependence of the shear stress on the time, for a fixed value of the shear rate.
