For CAT activity assay, two grams of fruit tissues were treated with liquid nitrogen, pulverized and extracted in 10 mL of 100 mmol L1 Tris–HCl buffer (pH 7.8) containing 2 mmol L1 EDTA-Na and 5 mmol L1 1,4-dithiothreitol
For CAT activity assay, two grams of fruit tissues were treatedwith liquid nitrogen, pulverized and extracted in 10 mL of100 mmol L1 Tris–HCl buffer (pH 7.8) containing 2 mmol L1EDTA-Na and 5 mmol L1 1,4-dithiothreitol