湖北农业科学 ›› 2019, Vol. 58 ›› Issue (23): 112-115.doi: 10.14088/j.cnki.issn0439-8114.2019.23.024

• 园艺·特产 • 上一篇    下一篇

基于模内蒸制工艺的青砖茶品质与成型压力作用机理

滕靖1, 2, 龚自明1, 涂修亮3, 王胜鹏1, 刘盼盼1, 郑鹏程1, 高士伟1   

  1. 1.湖北省农业科学院果树茶叶研究所,武汉 430064;
    2.武汉理工大学湖北省数字制造重点实验室,武汉 430070;
    3.咸宁市农业科学院,湖北 咸宁 437000
  • 收稿日期:2019-07-09 出版日期:2019-12-10 发布日期:2019-12-18
  • 通讯作者: 龚自明(1966-),男,研究员,主要从事茶叶加工研究工作, (电话)027-88108058(电子信箱)ziminggong@163.com。
  • 作者简介:滕 靖(1981-),男,河南驻马店人,博士研究生,研究方向为茶叶加工装备、自动化系统集成、磁悬浮轴承结构及稳定性控制,(电话)13871327082(电子信箱)jobbase@163.com
  • 基金资助:
    湖北省科技创新计划(关键技术研发类)项目(2014ABA023); 国家现代农业(茶叶)产业技术体系建设专项(CARS-19); 湖北省农业科学院扶持性和竞争性计划项目(2014JZXH03); 湖北省农业科学院青年基金项目(2015NKYJJ05)

Mechanism of the quality and molding pressure of green brick tea based on in-mold steaming process

TENG Jing1, 2, GONG Zi-ming1, TU Xiu-liang3, WANG Sheng-peng1, LIU Pan-pan1, ZHENG Peng-cheng1, GAO Shi-wei1   

  1. 1.Research Institute of Fruit Tree Tea,Hubei Academy of Agricultural Sciences,Wuhan 430064,China;
    2.Hubei Key Laboratory of Digital Manufacturing,Wuhan University of Technology,Wuhan 430070,China;
    3.Xianning Academy of Agricultural Sciences,Xianning 437000,Hubei,China
  • Received:2019-07-09 Online:2019-12-10 Published:2019-12-18

摘要: 以质量130 g精品青砖茶为例,采用不同成型压力制作样品。样品的外观感官分析结果显示当砖面承受压力大于6 MPa,茶砖外形较好,随着压力进一步加大,成型效果进一步优化。外观近红外光谱分析结果显示五种不同处理下成品砖外观区分显著;化学成分测定结果显示,随着成型压力增大,成品砖的总体水浸出物呈升高趋势,在18 MPa出现拐点,儿茶素含量与压力大小关系不显著。综合结果表明青砖茶较优成型压力为12 MPa。研究为青砖茶为成型模具设计和新产品开发提供理论依据。

关键词: 青砖茶, 成型压力, 品质, 模内蒸制

Abstract: Taking 130 g green brick tea as an example, samples were made under different molding pressures. The appearance sensory analysis of the samples shows that when the pressure on the brick surface is greater than 6 MPa, the shape of the tea brick is better. With the further increase of the pressure, the forming effect is further optimized. Near infrared spectroscopy analysis shows that the appearance of finished bricks was significantly different under five different treatments. The results of chemical composition analysis shows that the total water extract of finished bricks increased with the increase of molding pressure, and the inflection point appeared at 18 MPa. The relationship between catechin content and pressure was not significant. The comprehensive results show that the optimal forming pressure of high quality brick tea is 12 MPa, which provides a theoretical basis for the mould design and new products development.

Key words: green brick tea, molding pressure, quality, mold steaming

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