Meat emulsions containing 2.5% HPP were found to be significantly
darker and less red and yellow than those made without
HPP. The addition of HPP also significantly decreased cooking
losses, fracture force and lipid oxidation in frankfurters. TBARS values
after 7 days of storage in these frankfurters were 25% and 45%
lower for emulsions containing 15% and 30% fat, respectively, compared
with control emulsions. The results show for the first time
the antioxidant and stabilizing effects of HPP in finely comminuted
meat emulsions. The Fat concentration had no significant effect on
cooking losses or lipid oxidation, although meat emulsions containing
the lower Fat concentration (15%) had significantly higher
a* and b* values and lower L*; they were also slightly but significantly
harder.