关键词: 香蕉果实, 成熟度, 活性氧, 乙烯, 淀粉酶

Abstract: The pulp slices of banana fruit treated with exogenous active oxygen (0.5 g/L paraquat, 10 mmol/L H₂O₂ and 10 mmol/L H₂O₂+10 mmol/L FeSO₄·7H₂O) and corresponding active oxygen scavengers (20 mmol/L propyl gallate, 10 units CAT and 70 mmol/L DMSO), exogenous ethylene (750μl/L ethyephon), the leading product (1 mmol/L ACC) and the inhibitor (10 mmol/L AOA) in ethylene synthesis were investigated. The results showed that in the present of O₂^· and ethylene, the activity of amylase could exhibit and made the fruit soft and ripe. Otherwise, might O₂^· have different effect from OH^· in synthesis of ethylene.

Key words: banana fruit, grade of maturity, active oxygen, ethylene, amylase