The potassiumferric cyanide reduction method measures the color
change of the test solution from yellow to various shades of green and
blue depending upon the reducing power of each sample. Meat
samples (0.03 g) were mixed with 2.5 ml of 200 mM sodium
phosphate buffer (pH 6.6) and 2.5 ml of 1% potassium ferric cyanide.
The mixture was incubated at 50 °C for 20 min. Then, 2.5 ml of 10%
trichloroacetic acid (w/v) was added and the mixture was centrifuged