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茶叶科学 ›› 2018, Vol. 38 ›› Issue (4): 425-429.doi: 10.13305/j.cnki.jts.2018.04.011

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用氧弹式量热计测定茶叶的热值

高锦红, 陈莹, 李雅丽   

  1. 渭南师范学院化学与材料学院,陕西 渭南 714000
  • 收稿日期:2017-12-18 修回日期:2018-01-05 出版日期:2018-08-15 发布日期:2019-10-15
  • 作者简介:高锦红,女,副教授,主要从事物理化学工作。E-mail: gjh97@163.com
  • 基金资助:
    国家青年科学基金项目(21503150)、陕西省教育厅项目(15JK1259)、渭南师范学院自然科学基金项目(17YKS02)

Determination the Calorific Value of Tea by Bomb Calorimeter

GAO Jinhong, CHEN Ying, LI Yali   

  1. College of Chemistry and Materials, Weinan Normal University, Weinan 714000, China
  • Received:2017-12-18 Revised:2018-01-05 Online:2018-08-15 Published:2019-10-15

摘要: 热值作为衡量物质质量的一个重要物理数据,从能量角度为评价同类食品质量提供一种新思路和方法。利用氧弹量热计测定12种茶样的热值,结果显示热值范围在14.96~16.16βkJ·g-1。量热计测定热值方法简单、操作简便。了解茶叶的热值,对饮茶人群的膳食结构及对茶类食品的开发利用、贮藏、食用等方面有一定的指导和参考意义。

关键词: 氧弹量热计, 茶叶, 热值

Abstract: The calorific value is an important physical data to measure the quality of materials. It can provide a new idea and method for evaluating the quality of similar foods from the energy point of view. The calorific values of 12 kinds of tea samples were determined by bomb calorimeter in this study. The results showed that the calorific values of these tea foods ranged from 14.96βkJ·g-1 to 16.16βkJ·g-1. The determining method was simple, easy to operate. Understanding the calorific value of tea had a certain guiding and referencing significance for the development, utilization, storage and consumption of tea foods.

Key words: bomb calorimeter, tea, calorific value

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