4.2. Mechanisms of interference on meat emulsion stability and texture
The presence of 1500 ppm green tea extract in the meat emulsions
was found to increase cooking loss and the hardness, indicating that
the stability of the emulsions had been jeopardized. In general, green
tea extract was found to lower hardness, stiffness, and crumbliness of
the meat emulsions in a dose-dependent manner, indicating that the
phenolic compounds reduced the emulsion properties and altered the
gel-forming ability of the meat proteins. Andersson et al. (1997) found
a correlation between reduced water holding capacity and increased
hardness and a high degree of protein aggregation in emulsion
sausages.
Interactions between surface membrane proteins surrounding the
lipid particles and the formation of a heat-induced protein network
that restricts themovements of the lipid particles are considered crucial