Fig. 4.

Color parameters (a) L* (b) a* and (c) b* of (black) untreated samples and plasma treated samples after (dark grey) 1 min, (grey) 2 min, (light grey) 3 min, (white) 4 min and (striped) 5 min and during storage at 4 °C. Values with different letters in each figure are significantly different for each treatment time when applying the Tukeýs honestly significant difference (HSD) method at p-value ≤ 0.05. (d) Total color change during storage of (♦) untreated juice and after plasma treatment of (□) 1 min, (Δ) 2 min, (◊) 3 min, (×) 4 min and (○) 5 min.