低温驯化结合冰温贮藏对西兰花品质的影响

食品科学 ›› 2012, Vol. 33 ›› Issue (20): 299-303.

低温驯化结合冰温贮藏对西兰花品质的影响

林本芳1，鲁晓翔1,*，李江阔2，陈绍慧2

1.天津商业大学生物技术与食品科学学院，天津市食品生物技术重点实验室 2.国家农产品保鲜工程技术研究中心，天津市农产品采后生理与贮藏保鲜重点实验室

收稿日期:2012-06-14 修回日期:2012-09-21 出版日期:2012-10-25 发布日期:2012-11-09
通讯作者: 林本芳 E-mail:taiyang.001@163.com
基金资助:
国家“十二五”科技支撑计划;天津市重点科技攻关项目

Effect of Cold Acclimation Combined with Ice-Temperature Storage on the Quality of Broccolis

Received:2012-06-14 Revised:2012-09-21 Online:2012-10-25 Published:2012-11-09

摘要/Abstract

摘要： 研究低温驯化结合冰温贮藏对西兰花保鲜品质的影响。贮藏期间每14d测定西兰花理化指标及营养成分。结果表明：与直接冰温贮藏或冷藏相比，低温驯化结合冰温贮藏处理对延缓西兰花VC含量和叶绿素含量的下降均有明显效果，且可降低呼吸强度和乙烯生成速率，提高西兰花过氧化物酶(POD)和过氧化氢酶(CAT)的活性，降低多酚氧化酶(PPO)活性，延缓相对电导率的升高。研究表明西兰花经低温驯化结合冰温贮藏的效果优于直接冰温贮藏的效果。

关键词: 西兰花, 低温驯化, 冰温贮藏

Abstract: This study was conducted to investigate the effect of cold acclimation combined with ice-temperature storage (CACITS) on the quality of broccolis. Physicochemical indexes and nutritional components of broccolis were detected every 14 days during storage. The results show that the contents of VC and chlorophyll in broccoli were decreased more significantly by cold acclimation combined with ice-temperature storage than ice-temperature storage alone and ordinary cold storage; moreover, cold acclimation combined with ice-temperature storage could reduce respiratory intensity and ethylene generation rate in broccolis, increase peroxidase (POD) and catalase (CAT) activities, inhibit polyphenol oxidase (PPO) activity and delay the increase of relative electric conductivity. As a result, it can be concluded that cold acclimation combined with ice-temperature storage is better for the quality of of broccolis than ice-temperature storage alone.

Key words: broccoli, cold acclimation, ice-temperature storage

中图分类号:

TS255.1

林本芳1，鲁晓翔1,*，李江阔2，陈绍慧2. 低温驯化结合冰温贮藏对西兰花品质的影响[J]. 食品科学, 2012, 33(20): 299-303.

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