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茶叶科学 ›› 2013, Vol. 33 ›› Issue (4): 364-369.doi: 10.13305/j.cnki.jts.2013.04.016

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茶树嫩梢力学特性与粗纤维试验

林燕萍1,2, 金心怡2,*, 郝志龙2, 叶乃兴2, 黄毅彪1, 汤慧英2, 陈新华2, 周小勇2   

  1. 1. 武夷学院,福建 武夷山354300;
    2. 福建农林大学,福建 福州350002
  • 收稿日期:2012-10-10 修回日期:2013-03-08 出版日期:2013-08-30 发布日期:2019-09-04
  • 通讯作者: *153340246@qq.com
  • 作者简介:林燕萍(1985—),女,福建福州人,助教,主要从事茶叶加工工程研究。
  • 基金资助:
    国家科技支撑计划项目(2007BAD07B02)

Experiment on Mechanical Properties and Crude Fiber of Tea Leaf

LIN Yan-ping1,2, JIN Xin-yi2,*, HAO Zhi-long2, YE Nai-xing2, HUANG Yi-biao1, TANG Hui-ying2, CHEN Xin-hua2, ZHOU Xiao-yong2   

  1. 1. WuYi University, WuYiShan 354300, China;
    2. Tea science of horticulture, College of fujian agriculture and forestry, Fuzhou 350002, China
  • Received:2012-10-10 Revised:2013-03-08 Online:2013-08-30 Published:2019-09-04

摘要: 以黄旦、福鼎大白茶、肉桂、毛蟹、铁观音鲜叶为原料,对其驻芽一、二、三叶进行力学特性及粗纤维含量的测定,研究表明,茶树嫩梢的弹性模量在4β158.88~14β849.11βkPa,最大应力在870.00~1β842.97βkPa,断裂应力在673.33~1β639.62βkPa,叶位对弹性模量、最大应力与断裂应力的影响达到极显著水平,大小排序为:三叶>二叶>一叶。茶树嫩梢最大力点应变在10.61%~18.36%,断裂应变在12.19%~26.95%,叶位对最大应力与断裂应力的影响达到极显著水平,大小排序为:三叶>二叶>一叶,不同品种有所差异。茶树嫩梢力学参数为茶叶加工机械设计提供了一定的参考价值。

关键词: 弹性模量, 断裂应力, 叶位, 力学特性

Abstract: The experiment on the crude fiber content and mechanical characteristic of fresh tea leaf showed the elastic modulus of Tie-Guan-Yin、MaoXie、HuangDang、Fudingdabaicha and RouGui is within the range of 4β158.88~14β849.11βkPa, the maximum stess is within the range of 870.00~1β842.97βkPa, the fracture stress is within the range of 673.33~1β639.62βkPa, the influence of leaf position to modulus of elasticity, maximum stess and breaking stress is highly significant. third leaf >second leaf> first leaf. The maximum strain of tea shoots is within the range of 10.61%~18.36%, the fault strain is within 12.19%~26.95%, the leaf position shows a highly significant effects on the maximum stain and breaking strain, and the order as follows: third leaf>second leaf>first leaf, there are some differences between different cultivars.

Key words: modules of elasticity, fracture stress, leaf position, mechanical properties

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