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dc.contributor.authorAhmed, Selena
dc.contributor.authorUnachukwu, Uchenna J.
dc.contributor.authorStepp, John R.
dc.contributor.authorPeters, Charles M.
dc.contributor.authorLong, Chunlin
dc.contributor.authorKennelly, Edward J.
dc.identifier.citationAhmed, Selena, Uchenna Unachukwu, John Richard Stepp, Charles M. Peters, Chunlin Long, and Edward Kennelly. “Pu-Erh Tea Tasting in Yunnan, China: Correlation of Drinkers’ Perceptions to Phytochemistry.” Journal of Ethnopharmacology 132, no. 1 (October 2010): 176–185. doi:10.1016/j.jep.2010.08.016.en_US
dc.description.abstractAim of the study: Pu-erh (or pu’er) tea tasting is a social practice that emphasizes shared sensory experience, wellbeing, and alertness. The present study examines how variable production and preparation practices of pu-erh tea affect drinkers’ perceptions, phytochemical profiles, and anti-oxidant activity. Materials and methods: One hundred semi-structured interviews were conducted in Yunnan Province to understand the cultural and environmental context of pu-erh tea tasting. The gong fu cha dao (‘way of tea’ with ‘effort,’ ‘work,’ or ‘skill’) method of brewing tea through multiple infusions was employed to evaluate green and black pu-erh samples from smallholder agro-forests and terrace plantations. Ranking interviews, High Performance Liquid Chromatography (HPLC), and the 1-1-diphenyl-2-picrylhydrazyl (DPPH) assay were conducted to characterize color and taste profiles, Total Catechin Content (TCC), Total Methylxanthine Content (TMC), and free radical scavenging capacity (IC50). Results: Significant variation was found among pu-erh samples based on: (1) agro-ecosystem mode of production by TCC (P < 0.0001) and TMC (P < 0.0265), (2) processing method for TCC (P < 0.0001), TMC (P < 0.0027), and free radical scavenging capacity (P < 0.0001), (3) infusion sequence for TMC (P < 0.0013), (4) taste rankings for TCC (P < 0.0001), TMC (P < 0.0001), and IC50 (P < 0.0059) and, (5) color rankings for TMC (P < 0.0009) and IC50 (P < 0.0001). Samples rated as bitter and bitter-sweet contained the greatest TCC and free radical scavenging capacity. Conclusions: This research demonstrated that production environment, processing methods, and infusion sequence in preparing tea are related to the phytochemical profile, free radical scavenging activity, and flavor of tea. Findings contribute to the ethnomedical literature by supporting previous studies that have hypothesized that the taste of plants, particularly bitterness, may guide societies in the search for medicinal plants and beneficial phytochemicals.en_US
dc.description.sponsorshipNational Science Foundation (NSF EAPSI OISE-0714431 and NSF DDEP OISE-0749961)en_US
dc.rightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).en_US
dc.titlePu-erh Tea Tasting in Yunnan, China: Correlation of Drinkers’ Perceptions to Phytochemistry.en_US
mus.citation.journaltitleJournal of Ethnopharmacologyen_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.categorySocial Sciencesen_US
mus.relation.collegeCollege of Education, Health & Human Developmenten_US
mus.relation.departmentHealth & Human Development.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.contributor.orcidAhmed, Selena|0000-0001-5779-0697en_US

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