King, 2003). Grape seed extract added at 10 and 20 g/kg to turkey thigh meat decreased TBARS values nearly ten-fold as compared to the control (Lau & King, 2003). The authors suggested that the optimal level of grape seed extract supplemented to poultry meat was between 1 and 10g/kg meat. In previous experiments we have shown that the amount of needed antioxidants (rosem- ary extracts) to depress oxidation in deboned turkey meat could be estimated by means of antiradical power (ARP) of tested substances (Mielnik et al., 2003). To verify this hypothesis and explore the efficiency of grape seed extract in retarding of oxidation development in processed turkey meat, the new attempt was undertaken.
With this study we report the investigation carried out on a commercial grape seed extract supplemented to turkey meat at the different concentrations, chosen on the ground of antioxidant capacity expressed as ARP. In order to exploit its potential as a natural antioxidant, the grape seed extract was added to minced breast turkey meat, which was later cooked, packaged in air or under vacuum, and finally cold stored. The development of oxidation process was monitored by TBARS values and volatile compounds.