食品科学 ›› 2012, Vol. 33 ›› Issue (18): 303-306.

• 包装贮运 • 上一篇    下一篇

1-MCP对低温胁迫下鲜姜的生理调控效果

张 曼1,李喜宏1,*,李伟丽1,李 罡2,周亚洲2,邓小毛2   

  1. 1.天津科技大学食品工程与生物技术学院 2.湖南原地现代农业发展有限公司
  • 收稿日期:2011-08-12 修回日期:2012-07-30 出版日期:2012-09-25 发布日期:2012-09-07
  • 通讯作者: 张曼 E-mail:zhangman026@163.com
  • 基金资助:

    天津市科技计划项目;天津市滨海新区科技计划项目

Effect of 1-Methylcyclopropene on Physiological Regulation of Fresh Ginger under Cold Stress

  • Received:2011-08-12 Revised:2012-07-30 Online:2012-09-25 Published:2012-09-07

摘要: 以鲜姜为试材,研究低温(10℃)条件下,不同用量1-MCP熏蒸处理鲜姜生理指标的变化,特别是对多酚氧化酶活力(PPO)、总酚、DPPH自由基清除能力、纤维素、[6]-姜酚含量等生理指标变化的影响。结果表明:0.5μL/L 1-MCP处理效果显著,有效抑制低温胁迫对鲜姜生理的影响。与对照相比,贮藏28d后,多酚氧化酶活力、总酚、DPPH自由基清除能力和[6]-姜酚分别升高了0.35U、5.45mg/100g、5.75%、0.97mg/g;纤维素含量降低了0.261%,表现出很好的保鲜效果。

关键词: 鲜姜, 1-MCP, 低温胁迫, 贮藏保鲜, 生理生化

Abstract: The purpose of the present study was explored the effect of 1-methylcyclopropene (1-MCP) fumigation at different doses on physiological and biochemical changes of fresh gingers (especially polyphenol oxidase (PPO) activity, DPPH radical scavenging activity, and total phenol, cellulose and 6-gingerol contents) during storage under low temperature (10 ℃) conditions. Treatment with 0.5μL/L 1-MCP could significantly inhibit the impact of cold stress on physiological indices of fresh gingers. Compared with control samples, PPO activity, total phenol content, and DPPH free radical scavenging activity and 6-gingerol content of 1-MCP treated samples after 28-d storage were increased by 0.35 U, 5.45 mg/100g, 5.75% and 0.97 mg/g, respectively, while cellulose content was decreased by 0.261%. These findings suggest 0.5μL/L 1-MCP treatment can be an effective approach for ginger preservation. 

Key words: fresh ginger, 1-methylcyclopropene, cold stress, storage, physiology and biochemistry

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