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北方园艺  2012 

短波紫外线处理对“玫瑰香”葡萄采后褐变及相关酶活性的影响

, PP. 12-15

Keywords: “玫瑰香”葡萄,短波紫外线,酶活性,贮藏

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Abstract:

以“玫瑰香”葡萄为试材,研究了在10℃条件下,不同强度短波紫外线(UV-C)照射不同时间对“玫瑰香”葡萄贮藏过程中腐烂率、褐变度、总酚和相关酶活性(PPO、POD)的影响。结果表明UV-C处理在较低光照强度(0.5×102、1.0×102μW/cm2)下,能够较好地抑制贮藏期葡萄的腐烂和褐变,延缓总酚含量和抗氧化能力的下降;其中光照剂量为1.2kJ/m2(光照强度1.0×102μW/cm2、照射20min)时效果最佳。

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