| 摘要: |
| 以美味猕猴桃“秦美”果实为试材，研究了充N2包装对其鲜切后果实呼吸速率、乙烯释放速率、丙二醛（MDA）含量等生理指标和果实硬度、可溶性固形物（TSS）含量、维生素C含量、可滴定酸含量等品质指标的影响。结果表明，充N西安市科技攻关项目（GG06123）处理后，果实的呼吸速率和乙烯释放速率受到抑制，呼吸速率高峰比对照延迟了4 d，乙烯释放速率高峰比对照推迟了8 d；充N以美味猕猴桃“秦美”果实为试材，研究了充N2包装对其鲜切后果实呼吸速率、乙烯释放速率、丙二醛（MDA）含量等生理指标和果实硬度、可溶性固形物(TSS)含量、维生素C含量、可滴定酸含量等品质指标的影响。结果表明,充N2处理后，果实的呼吸速率和乙烯释放速率受到抑制，呼吸速率高峰比对照延迟了4 d，乙烯释放速率高峰比对照推迟了8 d；充N2包装降低了鲜切猕猴桃果实丙二醛（MDA）的含量，抑制了Vc的降解，但对果实可滴定酸含量没有明显影响；充NN2包装可以抑制鲜切猕猴桃果实硬度的下降速度，推迟果实的软化，同时TSS含量的上升速度也比对照缓慢。综合各项指标分析认为，充N2包装对提高鲜切猕猴桃果片品质以及延长其货架期有显著效果。包装降低了鲜切猕猴桃果实丙二醛（MDA）的含量，抑制了Vc的降解，但对果实可滴定酸含量没有明显影响；充N2包装可以抑制鲜切猕猴桃果实硬度的下降速度，推迟果实的软化，同时TSS含量的上升速度也比对照缓慢。综合各项指标分析认为，充N2包装对提高鲜切猕猴桃果片品质以及延长其货架期有显著效果。 |
| 关键词: N2包装 猕猴桃鲜果 果实品质 生理指标 |
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| 基金项目:西安市科技攻关项目（GG06123） |
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| Effect of storage treatment with N2 on physiology and quality of fresh-cut kiwifruit slices |
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| Abstract: |
| With‘Qinmei’ kiwifruit as tested material,the effects of storage treatment with N2 on fruit firmness,total soluble solids,vitamin C,the titratable acid,respiration rate,ethylene production and MDA content of fresh-cut kiwifruit slices were investigated.The results indicated that:the storage treatment with N2 could postpone the time of respiration peak and the ethylene production,respiration peak postpone 4 d,and the ethylene production peak postpone 8 d than CK;the storage treatment with N2 had remarkable effects on Vitamin C,and could decrease the MDA content of the fresh-cut kiwifruit,but had no effect on the titratable acid;the storage treatment with N2 could increase the fruit firmness.In comprehensive consideration,the storage treatment with N2 has remarkable effect on increasing the quality and prolonging the shelf-life of the fresh-cut kiwifruit. |
| Key words: nitrogen packing fresh-cut kiwifruit quality physiology |
