施加外源乙烯时机对自发气调贮藏桃果实生理效应的影响

doi:10.7506/spkx1002-6300-200920104

食品科学 ›› 2009, Vol. 30 ›› Issue (20): 459-463.doi: 10.7506/spkx1002-6300-200920104

施加外源乙烯时机对自发气调贮藏桃果实生理效应的影响

朱世明^1,2，王贵禧¹,*，梁丽松¹，祝美云²

1.中国林业科学研究院林业研究所，国家林业局林木培育实验室 2.河南农业大学食品科学技术学院

收稿日期:2009-03-20 修回日期:2009-07-16 出版日期:2009-10-15 发布日期:2010-12-29
通讯作者: 王贵禧 E-mail:wanggx0114@126.com
基金资助:
“十一五”国家科技支撑计划项目(2006BAD22B04)

Effect of Exogenous Ethylene Treatment Time on Respiration, Ethylene Release and Pigments Change of Peach Fruits during MA Storage

ZHU Shi-ming1,2，WANG Gui-xi1,*，LIANG Li-song1，ZHU Mei-yun2

1. Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Forest Silviculture of State Forestry
Administration, Beijing 100091, China ；2. College of Food Science and Technology, Henan Agricultural University, Zhengzhou
450002, China

Received:2009-03-20 Revised:2009-07-16 Online:2009-10-15 Published:2010-12-29
Contact: WANG Gui-xi E-mail:wanggx0114@126.com

摘要/Abstract

摘要：

在自发气调(MA)贮藏期间，不同时间(0、15、30d)加入外源乙烯处理(50～80μl/L)，研究大久保桃果实的呼吸、乙烯和色素的变化。结果表明，MA贮藏过程中，桃果实的呼吸和乙烯释放很低，而且变化值未表现出高峰，外源乙烯处理诱导了贮藏期和货架期桃果实内源乙烯的释放，增强了果实的呼吸强度；外源乙烯处理时间越早，桃果实的呼吸强度、乙烯释放量高峰出现越早或者峰值越高；外源乙烯处理促进了桃果实果皮叶绿素的降解，抑制了类胡萝卜素的快速下降，使桃果实正常着色。以上结果说明外源乙烯处理对于减轻桃果实低温贮藏冷害具有明显的作用。考虑到外源乙烯减轻低温冷害和促进果实衰老的双重作用，在时间上以贮藏30d时进行外源乙烯处理效果最好。

关键词: 外源乙烯, 乙烯释放量, 呼吸强度, 叶绿素, 类胡萝卜素

Abstract:

‘Okubo’peach (Prunus persica L.Batsch) fruits were treated with exogenous ethylene(50–80 μl/L) at different time points (0, 15 and 30 d) during modified atmosphere (MA) storage. Respiration, ethylene release and pigment alternation of peach fruits were monitored. Results showed that the respiration intensity and ethylene release rate of peach fruits without application of exogenous ethylene were low and no obvious alterations were observed during MA storage. However, exogenous ethylene treatment stimulated the synthesis of endogenous ethylene and improved respiration intensity of peach fruits during MA storage. An earlier treatment with exogenous ethylene for peach fruits induced an earlier and higher peak for respiration intensity and ethylene release. Exogenous ethylene treatment also promoted the degradation of chlorophyll and inhibited the rapid decline of carotenoids in peach peel so that peach fruits exhibited normal color. All of these investigations indicated that exogenous ethylene treatment had a significant effect on alleviating chilling-injuries of peach fruits. Due to the dual effects on inhibiting chilling-injuries and accelerating caducity of peach fruits using exogenous ethylene treatment, the best time to apply exogenous ethylene should be at 30 days after MA storage.

Key words: exogenous ethylene, ethylene release, respiration intensity, chlorophyll, carotenoids

中图分类号:

TS231.25

朱世明1,2，王贵禧1,*，梁丽松1，祝美云2. 施加外源乙烯时机对自发气调贮藏桃果实生理效应的影响[J]. 食品科学, 2009, 30(20): 459-463.

ZHU Shi-ming1,2，WANG Gui-xi1,*，LIANG Li-song1，ZHU Mei-yun2. Effect of Exogenous Ethylene Treatment Time on Respiration, Ethylene Release and Pigments Change of Peach Fruits during MA Storage[J]. FOOD SCIENCE, 2009, 30(20): 459-463.

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施加外源乙烯时机对自发气调贮藏桃果实生理效应的影响

Effect of Exogenous Ethylene Treatment Time on Respiration, Ethylene Release and Pigments Change of Peach Fruits during MA Storage

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