UNIVERSITAT POLITÈCNICA DE VALÈNCIA Desarrollo ... - RiuNet

44 I. Introducción
new generation of in situ produced thickeners. This is of general interest, as
there is an increasing demand from manufactures to decrease the addition of
stabilisers in yoghurt products.
Cruz et al. (2009) instead, studied the effect of UHPH treatments (around
250-300 MPa) in soy milk on the fermentation processing: This technology is
quite similar to the conventional high-pressure homogenization used in the
food industry but considerably higher pressures are applied. Some benefits
have been reported for its application in the food industry as it causes
interesting changes in structural components and increases shelf life of liquid
products. The results showed that UHPH soy-yoghurts displayed greater
firmness and higher water holding capacity than gels produced from
conventional homogenised samples.
Figure 4. Microstructure obtained by CLSM of fermented oat milk with a mixed
culture of L.reuteri and S.thermophilus. (CP: Continue phase; DP: Dispersed phase;
f: fat globule; s: starters + other fibres). Source: personal compilation.