张文杰 1刘聪 1严亮 1郑婷婷 2马莉 1赵苗苗1
作者信息
- 1. 普洱茶研究院,云南普洱665000
- 2. 滇西应用技术大学普洱茶学院,云南普洱665000
- 折叠
摘要
Abstract
The aroma compounds of pu-erh tea flower and flower powder were analyzed by head-phase micro-extraction(HS-SPME) coupled with gas chromatography-mass spectrometry(GC-MS).The parameters of HS-SPME were initially evaluated.The optimal extraction parameters were achieved under the following conditions:65 μm PDMS/DVB fiber,extraction temperature 70 ℃,extraction time 60 minutes.Under the optimal conditions,65 and 51 kinds of compounds were identified in pu-erh tea flower and tea flower powder,accounting for 87.72％ and 82.77％,respectively.The major constituents were alcohols,alkanes,aldehydes,alkenes,ketones,esters,phenols,acids,nitrogens,and naphthalenes compounds.Linalool,α-bisaboleue,curcumene,eicosane,and 6,10,14-trimethyl-2-pentadecanone were the characteristic compounds in pu-erh tea flower.Linalool,geraniol,terpineol,nonanal,and methoxyeugenol were the characteristic compounds in tea flower powder.These results could provide a theoretical basis for the evaluation of aroma quality of pu-erh tea flower and its deep processing products.关键词
普洱茶花/茶花粉/HS-SPME/GC-MS/挥发性香气成分Key words
pu-erh tea flower/pu-erh tea flower powder/HS-SPME/GC-MS/aroma compounds分类
轻工纺织
