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核农学报  2012 

短波紫外线处理对采后草莓果实腐烂和抗氧化能力的影响

, PP. 775-780

Keywords: 草莓果实,腐烂,抗氧化能力,花色苷,短波紫外线

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Abstract:

以"凤冠"草莓为材料,研究了0、1.5、3.0和4.5kJ·m-2UV-C处理对草莓果实在10℃,12d贮藏期间腐烂和果实抗氧化能力的影响。结果表明,3kJ·m-2UV-C处理能显著抑制草莓果实采后腐烂的发生和MDA的积累,延缓果实失重、硬度和可溶性固形物含量的降低,促进果实CIRG值的提高,增强果实采后着色能力,从而保持果实的感官和食用品质。同时,3kJ·m-2UV-C处理能促进贮藏期间果实总花色苷、总酚含量和DPPH自由基清除能力的增加,减少草莓果实中抗氧化组分含量的下降,维持果实较高的营养品质。说明适宜剂量的UV-C处理(3kJ·m-2)在草莓果实采后后贮运保鲜和抗氧化能力调控中具有潜在的应用前景。

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