湖北农业科学 ›› 2025, Vol. 64 ›› Issue (12): 187-193.doi: 10.14088/j.cnki.issn0439-8114.2025.12.032

• 贮藏·加工 • 上一篇    下一篇

60Co-γ射线辐照对紫甘蓝颜色及抗氧化活性的影响

邱娅璐1,2, 王艳1,2, 高鹏1,2, 徐攀1,2, 何江1,2   

  1. 1.四川省原子能研究院,成都 610101;
    2.辐照保藏和效应四川省重点实验室,成都 610101
  • 收稿日期:2025-08-11 发布日期:2025-12-30
  • 通讯作者: 高 鹏(1982-),女,河南许昌人,副研究员,硕士,主要从事辐照加工与保藏研究,(电话)028-65985221(电子信箱)ppenggao@163.com。
  • 作者简介:邱娅璐(1995-),女,四川雅安人,研究实习员,硕士,主要从事食品加工研究,(电话)028-65985220(电子信箱)906194858@qq.com。
  • 基金资助:
    四川省省级科研院所基本科研业务费项目(2024JDKY0003)

Effects of 60Co-γ ray irradiation on color and antioxidant activity of purple cabbage

QIU Ya-lu1,2, WANG Yan1,2, GAO Peng1,2, XU Pan1,2, HE Jiang1,2   

  1. 1. Sichuan Institute of Atomic Energy, Chengdu 610101, China;
    2. Irradiation Preservation and Effect Key Laboratory of Sichuan Province, Chengdu 610101, China
  • Received:2025-08-11 Online:2025-12-30

摘要: 以紫甘蓝为研究对象,探究60Co-γ辐照处理下,紫甘蓝叶片的颜色和表皮形态结构的变化、花色苷成分变化及抗氧化活性等,来评估不同辐照剂量处理对紫甘蓝花色苷的生理、生化活性的影响。结果表明,紫甘蓝花色苷成分对辐照敏感,1 kGy剂量就能增加花色苷的组成组分,但花色苷总含量间没有显著性差异;辐照会影响紫甘蓝的抗氧化能力,1 kGy辐照比2 kGy辐照对紫甘蓝的影响更明显;经辐照后花色苷代谢途径中的关键酶POD活性明显增大;2 kGy剂量的辐照对紫甘蓝的DPPH自由基清除能力和PAL活性与未辐照样品之间均无显著性差异;2 kGy辐照使叶片的明度轴参数值变大,叶片颜色变亮一些。综上,2 kGy的60Co-γ辐照是紫甘蓝保鲜的最佳剂量,并且能在一定程度上延缓鲜切蔬果产品的褪色。

关键词: 紫甘蓝, 花色苷, 60Co-γ辐照, 抗氧化活性, 苯丙氨酸解氨酶(PAL)

Abstract: Purple cabbage was used as the research object to investigate the change of color and epidermal morphology structure, anthocyanin composition and antioxidant activity under; 60Co-γ irradiation, so as to evaluate the effects of different irradiation doses on the physiological and biochemical activity of anthocyanin in purple cabbage. The results showed that purple cabbage anthocyanins were sensitive to radiation, and a dose of 1 kGy could change the various components of anthocyanins, but there was no significant difference in the total content of anthocyanins. Irradiation did affect the antioxidant capacity of purple cabbage, and the impact of 1 kGy irradiation was more pronounced than that of 2 kGy irradiation. After irradiation, the activity of the key enzyme POD in the anthocyanin metabolism pathway significantly increased. There was no significant difference in the DPPH radical scavenging ability and PAL activity of purple cabbage irradiated with a dose of 2 kGy compared to non irradiated samples. The irradiation of 2 kGy increased the brightness axis parameter value of the leaves and made the leaf color brighter. In summary, 2 kGy of; 60Co-γ irradiation was the optimal dose for preserving purple cabbage and could delay the fading of fresh cut vegetable and fruit products to a certain extent.

Key words: purple cabbage, anthocyanins, 60Co-γ irradiation, antioxidant activity, PAL

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