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中国精品科技期刊2020

短波紫外线处理对鲜切莲藕酶促褐变的影响

解新方, 王晓萍, 王志东, 张洁, 郝青

解新方, 王晓萍, 王志东, 张洁, 郝青. 短波紫外线处理对鲜切莲藕酶促褐变的影响[J]. 食品工业科技, 2020, 41(17): 274-278. DOI: 10.13386/j.issn1002-0306.2020.17.046
引用本文: 解新方, 王晓萍, 王志东, 张洁, 郝青. 短波紫外线处理对鲜切莲藕酶促褐变的影响[J]. 食品工业科技, 2020, 41(17): 274-278. DOI: 10.13386/j.issn1002-0306.2020.17.046
XIE Xin-fang, WANG Xiao-ping, WANG Zhi-dong, ZHANG Jie, HAO Qing. Effects of Ultraviolet-C(UV-C)Radiation on Enzymatic Browning of Fresh-cut Lotus Root[J]. Science and Technology of Food Industry, 2020, 41(17): 274-278. DOI: 10.13386/j.issn1002-0306.2020.17.046
Citation: XIE Xin-fang, WANG Xiao-ping, WANG Zhi-dong, ZHANG Jie, HAO Qing. Effects of Ultraviolet-C(UV-C)Radiation on Enzymatic Browning of Fresh-cut Lotus Root[J]. Science and Technology of Food Industry, 2020, 41(17): 274-278. DOI: 10.13386/j.issn1002-0306.2020.17.046

短波紫外线处理对鲜切莲藕酶促褐变的影响

基金项目: 

中国农业科学院科技创新工程。

详细信息
    作者简介:

    解新方(1986-),女,硕士研究生,工程师,研究方向:农产品加工与贮藏,E-mail:xiexinfang@caas.cn;王晓萍(1997-),女,硕士研究生,研究方向:林木生物技术,E-mail:wangxiaoping@caf.ac.cn。

    通讯作者:

    张洁(1983-),女,博士,副研究员,研究方向:农产品贮藏理论与技术,E-mail:zhangjie@caas.cn

    郝青(1981-),女,博士,副教授,研究方向:园林植物遗传育种与栽培生理,E-mail:haoqing5608@163.com。

  • 中图分类号: TS205

Effects of Ultraviolet-C(UV-C)Radiation on Enzymatic Browning of Fresh-cut Lotus Root

  • 摘要: 以'粉红藕'为试材,研究了短波紫外线处理对鲜切莲藕4℃冷藏过程中褐变效果的影响。主要分析了不同照射剂量(1.0、3.0和5.0 kJ/m2)下鲜切莲藕色泽、失水率、硬度、没食子酸含量、儿茶酚含量、多酚氧化酶(PPO)和超氧化物歧化酶(SOD)活性等对生理生化指标的影响。结果表明,5.0 kJ/m2剂量UV-C处理的鲜切莲藕褐变指数在贮藏第12 d时低于30,显著低于对照和其他处理组(P<0.05),5.0 kJ/m2剂量UV-C处理可通过抑制褐变底物儿茶酚、没食子酸与PPO反应来延缓鲜切莲藕的酶促褐变,并通过延缓硬度的下降,提高鲜切莲藕的贮藏品质。综合保鲜效果得出,12 d的贮藏期内,5.0 kJ/m2剂量UV-C处理抑制鲜切莲藕的褐变效果最佳。
    Abstract: The effect of different doses of UV-C radiation(1.0,3.0 and 5.0 kJ/m2)on the browning quality of fresh-cut lotus root was studied by using ‘Fen Hong Ou’ as the experimental materials. The color,water loss rate,firmness,the content of phenols and the activity of enzymes(PPO,SOD)were studied at 4℃ storage time(0,3,6,9 and 12 days).The results showed that the enzymatic browning index of fresh-cut lotus root was less than 30 on the 12th day during cold storage after 5.0 kJ/m2 UV-C radiation,significantly lower than that of the control and other treatment groups(P<0.05). The UV-C radiation dose of 5.0 kJ/m2 could delay the enzymatic browning of fresh-cut lotus root by inhibiting the reaction of browning substrates catechol,gallic acid and PPO. The decrease of firmness could also be delayed by UV-C radiation,indicating that the quality of fresh-cut lotus root could be preserved better. The irradiation dose of 5.0 kJ/m2 performed the best in 12 days of storage.
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出版历程
  • 收稿日期:  2019-09-02
  • 网络出版日期:  2020-11-12
  • 刊出日期:  2020-08-31

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