Antioxidant Effect of a Polyphenol-Rich Murtilla (Ugni molinae Turcz.) Extract and Its Effect on the Regulation of Metabolism in Refrigerated Boar Sperm

Table 2

Predicted EC50: predicted EC50 for each time analysed according to sigmoidal dose-response analysis.

Time (hrs)	EC50 MT-Ex G.14-4 (μgGAE mL^-1)	SD
0.5	0.315	0.094
1	0.055	0.019
2	0.030	0.014
4	0.003	0.009
6	0.006	0.009

The data shown represent the effective concentration to reduce the oxidative stress by 50% at each hour evaluated.