湖北农业科学 ›› 2023, Vol. 62 ›› Issue (7): 120-125.doi: 10.14088/j.cnki.issn0439-8114.2023.07.021

• 贮藏·加工 • 上一篇    下一篇

灵武长枣冻藏期间果实理化性状及抗氧化作用的研究

院钦1a, 马国娟1a, 任玉锋1a,1b, 马婷婷1a, 唐文林2, 康鹏1a,1b, 徐文娣1a,1b, 周军1a,1b   

  1. 1.北方民族大学,a.生物科学与工程学院;b.经济林遗传改良创新团队,银川 750021;
    2.灵武市林业果树技术推广服务中心,宁夏 灵武 751400
  • 收稿日期:2022-02-28 出版日期:2023-07-25 发布日期:2023-08-15
  • 通讯作者: 任玉锋(1964-),女,宁夏银川人,教授,硕士,主要从事果实采后生物学技术研究,(电话)13709583080(电子信箱)ren_yufeng@163.com。
  • 作者简介:院 钦(1999-),男,山西忻州人,本科,研究方向为果实采后生物学技术,(电话)15234795011(电子信箱)2976181029@qq.com。
  • 基金资助:
    宁夏回族自治区农业高质量发展和生态保护科技创新示范课题(NGSB-2021-1-02); 宁夏回族自治区经济林遗传改良创新团队基金项目(2022QCXTD04)

Study on physicochemical properties and antioxidation of Ziziphus jujuba ‘Lingwuchangzao' fruit during frozen storage

YUAN Qin1a, MA Guo-juan1a, REN Yu-feng1a,1b, MA Ting-ting1a, TANG Wen-lin2, KANG Peng1a,1b, XU Wen-di1a,1b, ZHOU Jun1a,1b   

  1. 1a. College of Biological Science and Engineering; 1b. Innovation Team of Genetic Improvement of Economic Forest, North Minzu University, Yinchuan 750021, China;
    2. Lingwu City Forestry and Fruit Tree Technology Extension Service Center, Lingwu 751400, Ningxia, China
  • Received:2022-02-28 Online:2023-07-25 Published:2023-08-15

摘要: 以灵武长枣(Ziziphus jujuba ‘Lingwuchangzao')果实为试验材料,经-18 ℃冻藏后,对其可溶性固形物、可滴定酸、维生素C、总酚、总黄酮含量以及超氧阴离子自由基和DPPH自由基清除率进行测定与分析。结果表明,在冻藏条件下,随着冻藏时间的推移,灵武长枣果实的可溶性固形物、可滴定酸、维生素C、总酚、总黄酮等物质含量逐渐下降,超氧阴离子自由基和DPPH自由基清除能力也逐渐降低。维生素C、总酚含量与超氧阴离子自由基清除率呈极显著正相关(P<0.01),总黄酮含量与超氧阴离子自由基清除率呈显著正相关(P<0.05),说明这3类物质是清除超氧阴离子自由基的主效物。此外,冻藏可以保持灵武长枣果实一定的DPPH自由基还原能力。维生素C含量的快速下降,使得总酚及总黄酮类物质在冻藏后期可维持枣果一定的抗氧化作用。

关键词: 灵武长枣(Ziziphus jujuba ‘Lingwuchangzao'), 冻藏, 理化性状, 抗氧化作用, 相关性分析

Abstract: Using Ziziphus jujuba ‘Lingwuchangzao' fruits as test materials, the contents of soluble solids, titratable acid, vitamin C, total phenolics, total flavonoids, the scavenging rates of O2-· and DPPH· were determined and analyzed after frozen storaged at -18 ℃. The results showed that under the condition of frozen storage, with the passage of frozen storage time, the contents of soluble solids, titratable acid, vitamin C, total phenolics and total flavonoids in Ziziphus jujuba ‘Lingwuchangzao' fruits decreased gradually, and the capability of scavenging O2-·and DPPH· also decreased gradually. The contents of vitamin C and total phenolics were extremely significantly positively correlated with the scavenging rate of O2-·(P<0.01), and total flavonoids content was significantly positively correlated with the scavenging rate of O2-·(P<0.05), indicating that these three substances were the main effects of scavenging O2-·. Moreover, frozen storage could maintain certain DPPH· reduction ability of Ziziphus jujuba ‘Lingwuchangzao' fruits. The rapid decrease of vitamin C content caused the total phenolics and total flavonoids to maintain the antioxidant effect of jujube fruit in the later stage of frozen storage.

Key words: Ziziphus jujuba ‘Lingwuchangzao', frozen storage, physical and chemical properties, antioxidation, correlation analysis

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