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中国农学通报 ›› 2014, Vol. 30 ›› Issue (34): 193-198.doi: 10.11924/j.issn.1000-6850.2014-1619

所属专题: 园艺

• 食品 营养 检测 安全 • 上一篇    下一篇

工夫红茶萎凋中温度对鲜叶失水率影响的预测模型

黄 藩1,2,3,4,董春旺1,3,4,高明珠1,2,3,4,桂安辉1,2,3,4
刘 飞1,叶 阳1,3,4,朱宏凯1,3,4   

  1. 1中国农业科学院茶叶研究所/浙江省茶叶加工工程重点实验室,杭州 310008;2中国农业科学院研究生院,北京 100081;
    3国家茶产业工程技术研究中心,杭州 310008;4农业部茶树生物学与资源利用重点实验室,杭州 310008)
  • 收稿日期:2014-06-08 修回日期:2014-12-05 接受日期:2014-09-30 出版日期:2015-03-10 发布日期:2015-03-10
  • 通讯作者: 黄藩
  • 基金资助:
    国家科技支撑计划“工夫红茶关键加工智能化装备及自动化生线”(2012BAF07B05);省重大科技专项重大农业项目(2013C02024-1);省茶产业技术创新战略联盟专项(2010LM201-14)。

Predictive Mathematical Model of Temperature on Water Losing Rate of Leaves in Withering Process of Congou Black Tea

Huang Fan1,2,3,4, Dong Chunwang1,3,4, Gao Mingzhu1,2,3,4, Gui Anhui1,2,3,4,
Liu Fei1, Ye Yang1,3,4, Zhu Hongkai1,3,4   

  1. (1Tea Research Institute, Chinese Academy of Agricultural Sciences/
    Key Laboratory of Tea Processing Engineering of Zhejiang Province, Hangzhou 310008;
    2Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081;
    3National Engineering Technology Research Center for Tea Industry, Hangzhou 310008;
    4Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008)
  • Received:2014-06-08 Revised:2014-12-05 Accepted:2014-09-30 Online:2015-03-10 Published:2015-03-10

摘要: 为了研究温度对工夫红茶萎凋过程中鲜叶水分散失的影响,构建鲜叶失水率变化的预测模型,本试验在相对湿度为60%~65%的萎凋条件下,检测设定萎凋温度(20,25,30,35℃)下鲜叶的失水率,明确萎凋温度、萎凋时间及鲜叶失水率的相关关系。进而以化学反应动力学和阿伦方程(Arrhenius)为基础,得到鲜叶失水率和温度之间关系的预测模型(R2>0.98)。对该模型的验证试验表明,模型预测值和试验真实值吻合良好(P=4.538%),利用模型能预测鲜叶在萎凋过程中水分散失的规律,进而判断鲜叶达到萎凋适度的时间,对工夫红茶萎凋工艺优化,具有重要理论价值和指导意义。

关键词: 保果率, 保果率

Abstract: The study aims to explore the effect of temperature on water losing rate of leaves in withering process of Congou black tea to construct a predictive model of changes of water losing rate of leaves. Basic models were developed for 4 temperatures (20, 25, 30, 35℃) with 60%-65% relative humidity (RH), in order to clarify the correlation of time, temperature and leaf water losing rate of the withering. The prediction model of relationship between fresh leaf water losing rate and temperature was built based on chemical reaction kinetics and Allen equation (Arrhenius) (R2>0.98). An experiment was done to verify correctness of the model and results showed that the predicted values achieved by the model agreed well with field test results (P=4.538%). The model could be used to forecast the law of water losing rate of leaves and determine the time ranges of wilting and had important theoretic value and guiding significance for optimization of the withering process of congou black tea.