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茶叶科学 ›› 2006, Vol. 26 ›› Issue (3): 181-185.doi: 10.13305/j.cnki.jts.2006.03.005

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真空冷冻干燥对乌龙茶香气品质的影响

叶乃兴1, 2, 杨如兴3, 杨广1, 4, 杨江帆1, 2, 梁小虾4, 郑德勇1   

  1. 1. 福建农林大学茶业科技与经济研究所;
    2. 福建农林大学茶学系,福建 福州 350002;
    3. 福建省农业科学院茶叶研究所,福建 福安 355015;
    4. 福建农林大学应用生态研究所,福建 福州 350002
  • 收稿日期:2005-12-19 修回日期:2006-07-12 出版日期:2006-09-25 发布日期:2019-09-11
  • 作者简介:叶乃兴(1963- ),男,福建寿宁人,副研究员,主要从事茶树栽培育种与资源利用研究。
  • 基金资助:
    福建省教育厅科技计划项目(JA05247)、福建省自然科学基金资助项目(Z0516015)

Effects of Vacuum Freezing Dry on the Aroma Quality of Oolong Tea

YE Nai-xing1, 2, YANG Ru- xing3, YANG Guang1, 4, YANG Jiang-fan1, 2, LIANG Xiao-xia4, ZHENG De-yong1   

  1. 1. Institute of Science,Technology and Economics of Tea Industry, 2. Department of Tea Science,Fujian Agriculture and Forestry University, Fuzhou 350002, China;
    3. Tea Research Institute, Fujian Academy of Agricultural Sciences, Fu`an 355015, China;
    4. Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2005-12-19 Revised:2006-07-12 Online:2006-09-25 Published:2019-09-11

摘要: 将真空冷冻干燥技术应用于清香型乌龙茶干燥工序(冻干茶),与冷冻茶和烘干茶进行比较试验。结果表明:冻干茶的芳樟醇、香橙烯、β-石竹烯、异戊酸苯乙酯、β-杜松烯、橙花叔醇、法呢醇含量高于冷冻茶和烘干茶;真空冷冻干燥可有效地保护乌龙茶的“色”、“香”、“味”,表现为香气馥郁清高、花香显、汤有香、味醇厚;与冷冻茶和烘干茶比较,具有综合品质优、贮藏期长、运输及销售方便等优势,应用前景广阔。

关键词: 乌龙茶, 真空冷冻干燥, 香气, 品质, 冻干茶, 冷冻茶, 烘干茶

Abstract: The vacuum freezing dry technique was applied during the drying process of the faint-scent type oolong tea. Compared with the freezing tea and baked tea, the contents of linalool, aromadendrene, β-caryophyllene, isovaleric acid phenethyl ester, β-cadinene, nerolidol, farnesol and hexatriacontane were higher in the freezing-dry tea. The vacuum freezing-dry technique could help to preserve the properties of color, aroma, flavor of oolong tea efficiently so that the freezing-dry tea had a strong flower scent, and its mellow was full of flavor. Therefore, the freezing-dry tea abowed a better quality in general compared with freezing tea and baked tea and would have a good prospective in the market in addition to its long storage and convenience in transportation.

Key words: oolong tea, vacuum freezing dry, aroma, quality, freezing-dry tea, freezing tea, baked tea

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