Fig. 5. Effect of antioxidants on the browning index of cranberry juice fortified with vitamin C (80 mg/100 mL) during 16 days storage at 23 C. Treatment levels per 100 mL: catechin Trt-1 (5 mg) and Trt-2 (15 mg); and gallic acid Trt-1 (80 mg), Trt-2
(160 mg), and Trt-3 (320 mg). Standard deviation varied from 0.00016 to 0.053.