| 摘要: |
| 【目的】研究1-MCP和蜂胶对冷藏红富士苹果的保鲜效果，为苹果的无公害保鲜提供新型高效的保鲜剂。【方法】以“红富士”苹果为试材，将果实用1-MCP和蜂胶处理后，在(1±0.5) ℃下贮藏，定期测定其呼吸速率、乙烯释放速率、果实硬度及可溶性固形物、可滴定酸、维生素C、总酚和类黄酮含量等生理指标，计算果实的失重率和腐烂指数。【结果】在(1±0.5) ℃的贮藏环境中，1-MCP处理在整个贮藏期都能够较好地抑制苹果果实呼吸速率和乙烯释放速率的增大，减缓果实硬度、可溶性固形物和可滴定酸含量的下降速度，保持维生素C、总酚和类黄酮类化合物含量的稳定，显著降低果实失水和腐烂程度，贮藏果实品质高于对照。蜂胶处理在贮藏前3个月内的保鲜效果与1-MCP相当，能够延缓果实的后熟衰老，有利于提高果实的贮藏品质，且果实类黄酮含量高于1-MCP处理和对照，具有一定的营养保健功能，但后期保鲜效果明显下降，与对照相比差异不大。【结论】1-MCP和蜂胶保鲜效果相当，但综合考虑，红富士苹果短期冷藏时以蜂胶的保鲜效果较好。 |
| 关键词: 1-MCP 蜂胶 红富士 酚类物质 冷藏：保鲜效果 |
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| 基金项目:国家现代苹果产业技术体系专项（nycytx-08-05-02） |
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| Effects of 1-MCP and propolis on quality of apple at cold storage |
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| Abstract: |
| 【Objective】 The effects of 1-MCP and propolis on cold storage quality of fruits of “red Fuji” apple were investigated, aiming to provide a new high-efficiency preservative in the pollution-free fresh apple.【Method】Taking “red Fuji” apple as experimental materials,fruits were treated with 1-MCP and propolis,then stored at (1±0.5) ℃,respiration rate,ethylene production rate,firmness,total soluble solids,titratable acid,vitamin C,polyphenols,flavonoids,weight loss ration and decay index of apple were measured and analyzed regularly.【Result】When apples were stored at (1±0.5) ℃,1-MCP treatment could reduce the respiration rate,delay the decline of fruit firmness,total soluble solids,titratable acidity,preserve the content of vitamin C,polyphenols,flavonoids,also remarkablely reduce rates of weight lessnees and decay of fruits,maintained higher quality of fruits.The use of propolis treatment can provide a similar effect to that obtained with the 1-MCP treatment during three months’ storaged.As a result,propolis treatment could slow down the progress of ripeness,improve the storage quality in postharvest fruits and maintain a higher level of the content of flavonoids compared with 1-MCP and control group.This chemical has certain healthy function.However,with the extension of storage time,the fresh-keeping effect significantly decreased,with no differences compared with the control.【Conclusion】1-MCP and propolis have similar fresh-keeping effects,but taking the quality into consideration, propolis treatment achieves good effect for a short time under the condition of cold storage. |
| Key words: 1-MCP propolis red Fuji polyphenols cold storage fresh-keeping effects |
