On December 30th of 2016,the temperature in Lhasa is almost at a record low.Around half past eleven,the 78-year-old Tashi Tsering is sitting cross-legged on his bed.Upon finishing his daily scriptural recitation,he pi...On December 30th of 2016,the temperature in Lhasa is almost at a record low.Around half past eleven,the 78-year-old Tashi Tsering is sitting cross-legged on his bed.Upon finishing his daily scriptural recitation,he picks up a cup of sweet tea placed on the tea table in front of him and takes a swallow before putting on his shoes and saying to his wife,Nyima,"I am going out to see them,so please don’t wait around for me at lunchtime."展开更多
Becoming a tea art practitioner, or charen （茶人）, involves cultivation of body and mind. This paper attempts to document the long-term process of bodily and mindful cultivation from an anthropological, participant-...Becoming a tea art practitioner, or charen （茶人）, involves cultivation of body and mind. This paper attempts to document the long-term process of bodily and mindful cultivation from an anthropological, participant-observation, and self-reflective point of view. I will describe my experiences from entering the world of Taiwan Residents tea art through learning the great variety of teas and the techniques for making them, designing my own tea sets, and performing in tea gatherings. This learning process has gone well beyond what is required of a researcher, or a good observer, because it has not only allowed me to understand, interpret, and analyze the aesthetics and ritual of Taiwan Residents tea art but it has also required that I ＂designs＂ or be creative in presenting Taiwan Residents tea art to my own cultural members. This substantially changes my status from the objective observer my profession requires, to a dedicated performer and even a designer/creator of my own culture. My self-reflexivity in this process points to not only methodological issues but also theoretical ones, including recent academic interest in materiality, cultural performance, lifestyle, bodily discipline, and the senses. Through self-reflection, I intends to reveal connections among them.展开更多
To explore the volatile profiles and the contents of ten bioactive components(polyphenols and caffeine) of sun-dried Pu-erh tea leaves from ancient tea plants on Bulang Mountain,17 samples of three tea varieties were ...To explore the volatile profiles and the contents of ten bioactive components(polyphenols and caffeine) of sun-dried Pu-erh tea leaves from ancient tea plants on Bulang Mountain,17 samples of three tea varieties were analyzed by headspace-solid phase microextraction-gas chromatography-mass spectrometry(HS-SPME-GC-MS) and high-performance liquid chromatography(HPLC).A total of 75 volatile components were tentatively identified.Laomaner(LME),Laobanzhang(LBZ),and other teas on Bulang Mountain(BL) contained 70,53,and 71 volatile compounds,respectively.Among the volatile compounds,alcohols(30.2%-45.8%),hydrocarbons(13.7%-17.5%),and ketones(12.4%-23.4%) were qualitatively the most dominant volatile compounds in the different tea varieties.The average content of polyphenol was highest in LME(102.1 mg/g),followed by BL(98.7 mg/g) and LBZ(88.0 mg/g),while caffeine showed the opposite trend,27.3 mg/g in LME,33.5 mg/g in BL,and 38.1 mg/g in LBZ.Principal component analysis applied to both the volatile compounds and ten bioactive components showed a poor separation of samples according to varieties,while partial least squares-discriminant analysis(PLS-DA) showed satisfactory discrimination.Thirty-four volatile components and five bioactive compounds were selected as major discriminators(variable importance in projection(VIP)>1) among the tea varieties.These results suggest that chromatographic data combined with multivariate analysis could provide a useful technique to characterize and distinguish the sun-dried Pu-erh tea leaves from ancient tea varieties on Bulang Mountain.展开更多
文摘On December 30th of 2016,the temperature in Lhasa is almost at a record low.Around half past eleven,the 78-year-old Tashi Tsering is sitting cross-legged on his bed.Upon finishing his daily scriptural recitation,he picks up a cup of sweet tea placed on the tea table in front of him and takes a swallow before putting on his shoes and saying to his wife,Nyima,"I am going out to see them,so please don’t wait around for me at lunchtime."
文摘Becoming a tea art practitioner, or charen （茶人）, involves cultivation of body and mind. This paper attempts to document the long-term process of bodily and mindful cultivation from an anthropological, participant-observation, and self-reflective point of view. I will describe my experiences from entering the world of Taiwan Residents tea art through learning the great variety of teas and the techniques for making them, designing my own tea sets, and performing in tea gatherings. This learning process has gone well beyond what is required of a researcher, or a good observer, because it has not only allowed me to understand, interpret, and analyze the aesthetics and ritual of Taiwan Residents tea art but it has also required that I ＂designs＂ or be creative in presenting Taiwan Residents tea art to my own cultural members. This substantially changes my status from the objective observer my profession requires, to a dedicated performer and even a designer/creator of my own culture. My self-reflexivity in this process points to not only methodological issues but also theoretical ones, including recent academic interest in materiality, cultural performance, lifestyle, bodily discipline, and the senses. Through self-reflection, I intends to reveal connections among them.
文摘To explore the volatile profiles and the contents of ten bioactive components(polyphenols and caffeine) of sun-dried Pu-erh tea leaves from ancient tea plants on Bulang Mountain,17 samples of three tea varieties were analyzed by headspace-solid phase microextraction-gas chromatography-mass spectrometry(HS-SPME-GC-MS) and high-performance liquid chromatography(HPLC).A total of 75 volatile components were tentatively identified.Laomaner(LME),Laobanzhang(LBZ),and other teas on Bulang Mountain(BL) contained 70,53,and 71 volatile compounds,respectively.Among the volatile compounds,alcohols(30.2%-45.8%),hydrocarbons(13.7%-17.5%),and ketones(12.4%-23.4%) were qualitatively the most dominant volatile compounds in the different tea varieties.The average content of polyphenol was highest in LME(102.1 mg/g),followed by BL(98.7 mg/g) and LBZ(88.0 mg/g),while caffeine showed the opposite trend,27.3 mg/g in LME,33.5 mg/g in BL,and 38.1 mg/g in LBZ.Principal component analysis applied to both the volatile compounds and ten bioactive components showed a poor separation of samples according to varieties,while partial least squares-discriminant analysis(PLS-DA) showed satisfactory discrimination.Thirty-four volatile components and five bioactive compounds were selected as major discriminators(variable importance in projection(VIP)>1) among the tea varieties.These results suggest that chromatographic data combined with multivariate analysis could provide a useful technique to characterize and distinguish the sun-dried Pu-erh tea leaves from ancient tea varieties on Bulang Mountain.
