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茶叶科学 ›› 2003, Vol. 23 ›› Issue (s1): 58-62.doi: 10.13305/j.cnki.jts.2003.s1.011

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超滤膜澄清乌龙茶饮料技术的研究

尹军峰, 权启爱, 罗龙新, 钱晓军   

  1. 中国农业科学院茶叶研究所 农业部茶叶化学工程重点开放实验室,浙江杭州310008
  • 出版日期:2003-12-25 发布日期:2019-09-16
  • 作者简介:尹军峰(1968- )男,浙江桐庐人,副研究员,主要从事茶叶加工及保鲜、茶饮料深加工研究。
  • 基金资助:
    农业部“九五”重点科技项目95-农-05-01-3专题内容之一

Study on Clarification of Oolong Tea Beverage by Ultra-filtration

YIN Jun-feng, QUAN Qi-ai, LUO Long-xin, QIAN Xiao-jun   

  1. Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tea Chemical Engineering of Agriculture Ministry, Hangzhou 310008, China
  • Online:2003-12-25 Published:2019-09-16

摘要: 采用平板超滤装置,选用CA材料3万、5万、10万分子量膜,系统研究在不同浓度、温度、压力下茶汁超滤通量及超滤前后茶多酚、氨基酸、咖啡碱、可溶糖、果胶、蛋白质等化学成分以及色差、pH、感官品质的变化。结果表明,超滤可以有效澄清乌龙茶汁,在合适的工艺参数下茶汁有效风味成分保留率高,能截留大部分易发生沉淀的高分子物质,感官品质佳。

关键词: 超滤, 膜, 乌龙茶汁, 澄清

Abstract: The Oolong tea juice was ultra-filtrated by using the plate-frame module and choosing three kinds of CA membrane with three pore diameter . Study on effect of different ultra-filtration process on the contents of main compounds including tea polyphenols, amino acids, caffeine, soluble sugar, pectin, protein etc in Oolong tea juices and colour difference, sensory quality, pH, ultra-filtration flux, etc. The results showed that ultra-filtration can clarify the Oolong tea juice effectively. The ultra-filtration can obstruct high-molecular mass that easy to participate higher retaining rate of the main compounds under the suitable ultra-filtration parameter. Sensory quality of the green tea juice ultra-filtrated was fine.

Key words: Ultra-filtration, Membrane, Oolong tea juice, Clarification

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