高压静电场处理对鲜切青花菜保鲜的影响

doi:10.7506/spkx1002-6630-201212062

食品科学 ›› 2012, Vol. 33 ›› Issue (12): 299-302.doi: 10.7506/spkx1002-6630-201212062

高压静电场处理对鲜切青花菜保鲜的影响

蒋耀庭1，常秀莲2，李磊1

1.海军航空工程学院基础部 2.烟台大学生命科学学院

出版日期:2012-06-25 发布日期:2012-07-27

Fresh-Keeping Effect of High Electrostatic Field on Fresh-Cut Broccoli

JIANG Yao-ting1，CHANG Xiu-lian2，LI Lei1

(1. Department of Basic Sciences, Naval Aeronautical and Astronautical University, Yantai 264001, China； 2. College of Life Science, Yantai University, Yantai 264005, China)

Online:2012-06-25 Published:2012-07-27

摘要/Abstract

摘要： 利用高压静电场处理鲜切青花菜，研究高压静电场对鲜切青花菜表面微生物、蛋白质含量、VC含量、呼吸强度与感官品质的影响。结果表明：高压静电场(极间电压为176.8、278.8、443.4kV)对鲜切青花菜表面微生物的杀灭作用均有很明显的效果，由电晕放电产生的臭氧可以缓解鲜切青花菜的组织代谢，对蛋白质、VC、呼吸强度有较好的控制作用，静电场的保鲜效果要优于对照组；最优条件为极间电压278.8kV、处理时间20min。

关键词: 高压静电场, 鲜切青花菜, 保鲜

Abstract: In this study, the effect of high electrostatic field on total bacterial count, protein content and vitamin C content, respiration intensity and sensory quality of fresh-cut broccoli was investigated. The results indicated that high electrostatic field with various voltage: 176.8, 278.8 kV and 443.4 kV had a prominent eliminating effect on bacteria on the surface of fresh-cut broccoli. Ozone generated in a corona discharge delayed the metabolism of the fresh-cut cauliflower so that the loss of its protein and vitamin C as well as respiration intensity could be controlled effectively. The fresh-keeping effect of electrostatic field was better than the control group. The optimal voltage and treatment time were 278.8 kV and 20 min, respectively. Based on the above results, the conclusion can be drawn that high electrostatic field treatment is an effective method for the preservation of fresh-cut broccoli.

Key words: high electrostatic field, fresh-cut broccoli, preservation

中图分类号:

TS255.36

蒋耀庭，常秀莲，李磊. 高压静电场处理对鲜切青花菜保鲜的影响[J]. 食品科学, 2012, 33(12): 299-302.

JIANG Yao-ting，CHANG Xiu-lian，LI Lei. Fresh-Keeping Effect of High Electrostatic Field on Fresh-Cut Broccoli[J]. FOOD SCIENCE, 2012, 33(12): 299-302.

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高压静电场处理对鲜切青花菜保鲜的影响

Fresh-Keeping Effect of High Electrostatic Field on Fresh-Cut Broccoli

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