食品科学 ›› 2009, Vol. 30 ›› Issue (6): 272-274.doi: 10.7506/spkx1002-6630-200906064

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高压脉冲电场对大蒜采后抗氧化物质的影响

李婷婷1,宋述尧1,迟燕平2   

  1. 1. 吉林农业大学园艺学院
    2. 吉林大学生物与农业工程学院
  • 收稿日期:2008-03-07 修回日期:2008-05-12 出版日期:2009-03-15 发布日期:2010-12-29
  • 通讯作者: 宋述尧 E-mail:sysongjlau@126.com

Study on Effects of High Intensity Pulsed Electric Field on Antioxidant Substances in Postharvest Garlic

LI Ting-ting1,SONG Shu-yao1,*,CHI Yan-ping2   

  1. (1. Department of Horticulture, Jilin Agricultural University, Changchun 130118, China;
    2. College of Biology and Agricultural Engineering, Jilin University, Changchun 130022, China)
  • Received:2008-03-07 Revised:2008-05-12 Online:2009-03-15 Published:2010-12-29
  • Contact: SONG Shu-yao1,*, E-mail:sysongjlau@126.com

摘要:

以大蒜为原料,研究了用高压脉冲电场处理大蒜(1.7kV/cm,5min 和1.7kV/cm, 10min)对大蒜VC、总黄酮、超氧化物歧化酶和多酚氧化酶变化的影响。实验结果表明,高压脉冲电场处理能够较好的保持大蒜采后贮藏品质,高压脉冲电场处理能够减缓大蒜VC 和总黄酮的降解速度,提高贮藏过程中超氧化物歧化酶活性,一定程度上抑制了大蒜的褐化,电场处理5min 的效果要优于电场处理10min 效果。

关键词: 高压脉冲电场, 大蒜, 抗氧化物质

Abstract:

The effects of high intensity pulsed electric field (HIPEF) treatment at 1.7 kV/cm for 5 min or at 1.7 kV/cm for 10 min on vitamin C content, total flavonoid content, superoxidae disumutast (SOD) activity and polyphenol oxidase (PPO) activity in garlic were investigated. The results showed that HIPEF can restrain the degradation of vitamin C and total flavonoids, enhance the SOD activity, inhibit the enzymatic browning of garlic to some extent, and well keep the quality of postharvest garlic during storage. Especially, the 5-min HIPEF treatment has better effect than 10-min treatment.

Key words: high intensity pulsed electric fields (HIPEF), garlic, antioxidant substance

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