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。
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.
出处
《茶叶科学》
CAS
CSCD
北大核心
2006年第3期181-185,共5页
Journal of Tea Science
基金
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)
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
oolong tea, vacuum freezing dry, aroma, quality, freezing-dry tea, freezing tea, baked tea
