湖北农业科学 ›› 2025, Vol. 64 ›› Issue (9): 96-101.doi: 10.14088/j.cnki.issn0439-8114.2025.09.016

• 园艺·特产 • 上一篇    下一篇

不同桂花品种对桂花绿茶生化成分与抗氧化活性的影响

郭志明1,2, 余子铭1,2, 程繁杨2, 陈德林1, 程长松2, 姜华2, 余佑文3, 訾化彬2, 涂修亮2   

  1. 1.咸宁香城特色农业技术研究院有限公司,湖北 咸宁 437000;
    2.咸宁市农业科学院,湖北 咸宁 437000;
    3.湖北泗泉茗茶业有限公司,湖北 咸宁 437000
  • 收稿日期:2025-06-30 出版日期:2025-09-25 发布日期:2025-10-28
  • 通讯作者: 涂修亮(1967-),男,研究员,博士,主要从事现代农业应用研究,(电子信箱)txl8256437@163.com;余子铭(1988-),男,农艺师,主要从事茶叶加工及茶树遗传育种研究,(电子信箱)117743587@qq.com。
  • 作者简介:郭志明(1988-),男,湖北咸宁人,助理研究员,硕士,主要从事茶叶加工及功能成分研究,(电子信箱)1948582906@qq.com。
  • 基金资助:
    咸宁市科技计划研究与开发项目(2024NYYF007)

Impact of different Osmanthus fragrans cultivars on the biochemical composition and antioxidant activity of osmanthus green tea

GUO Zhi-ming1,2, YU Zi-ming1,2, CHENG Fan-yang2, CHEN De-lin1, CHENG Chang-song2, JIANG Hua2, YU You-wen3, ZI Hua-bin2, TU Xiu-liang2   

  1. 1. Xianning Xiangcheng Characteristic Agricultural Technology Research Institute Co., Ltd., Xianning 437000, Hubei, China;
    2. Xianning Academy of Agricultural Sciences, Xianning 437000, Hubei, China;
    3. Hubei Siquanming Tea Co., Ltd., Xianning 437000, Hubei, China
  • Received:2025-06-30 Published:2025-09-25 Online:2025-10-28

摘要: 为明确不同桂花(Osmanthus fragrans)品种对桂花绿茶功能品质的影响,以福鼎大白茶制作的绿茶为茶坯原料,分别与金桂、银桂、丹桂及四季桂在统一窨制工艺下加工,制得4种桂花绿茶样品。测定其总酚、总黄酮、茶多酚、咖啡碱、氨基酸及可溶性糖等活性成分,并评价各活性成分的抗氧化活性。结果表明,不同桂花品种显著影响桂花绿茶的功能成分组成与抗氧化能力,其中金桂在3项抗氧化指标中表现均衡,APC综合评价指数达93.54%,优于其他处理。加花处理显著提升了茶汤中氨基酸(提高幅度最高达80.18%)与可溶性糖含量,同时总儿茶素与茶多酚含量略有下降。相关性分析显示,茶多酚和儿茶素含量与2,2-二苯基-1-苦基肼基(DPPH)及2,2′-联氮-双-3-乙基苯并噻唑啉-6-磺酸(ABTS)自由基清除能力呈显著正相关(r > 0.6,P < 0.05)。

关键词: 桂花(Osmanthus fragrans)品种, 桂花绿茶, 生化成分, 抗氧化活性, 相关性分析

Abstract: To clarify the effects of different Osmanthus fragrans cultivars on the functional quality of osmanthus green tea, green tea processed from Fuding Dabaicha was used as the tea base and scented with Jingui, Yingui, Dangui, and Sijigui under a unified scenting process to prepare four types of osmanthus green tea samples. The active components, including total phenols, total flavonoids, tea polyphenols, caffeine, amino acids, and soluble sugars, were determined, and the antioxidant activity was evaluated. The results showed that different Osmanthus fragrans cultivars significantly influenced the functional composition and antioxidant capacity of osmanthus green tea. Among them, Jingui showed a balanced performance in all three antioxidant indices, achieving a comprehensive APC evaluation score of 93.54%, which was higher than that of the other treatments. The addition of osmanthus flowers significantly increased the amino acid (up to 80.18%) and soluble sugar contents in the tea infusion, while slightly decreasing the total catechin and tea polyphenol contents. Correlation analysis indicated that the contents of tea polyphenols and catechins were significantly positively correlated with the scavenging capacities of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals(r> 0.6, P<0.05).

Key words: Osmanthus fragrans cultivars, osmanthus green tea, biochemical composition, antioxidant activity, correlation analysis

中图分类号: