養壺－紫砂壺表面的附著物質

Pot Nurturing (Yang Hu)-A Waterproof Film Coating on the Surface of Zisha Teapots

廖子慧(Zih-Hui Liao) ； 鍾澤裕(Tse-Yu Chung) ； 施毓恩(Yu-En Shih) ； 謝聖國(Sheng-Kuo Hsieh) ； 江佩倫(Pei-Luen Jiang) ； 曾志正(Jason T. C. Tzen)

《農林學報》 63卷2期 (2014/09) Pp. 115-121

https://doi.org/10.30089/JAF.201409_63(2).0006

摘要

茶是華人傳統的養生飲品。以紫砂壺泡茶，有助於突顯茶的香氣、色澤與滋味。養壺，顧名思義是紫砂壺體表面光亮潤澤的養成；透過長期反覆茶葉沖泡，紫砂壺體表面會逐漸累積防水物質，而此附著表面的防水層會讓壺體擁有溫潤的光澤。以烏龍茶及熷烏龍茶進行養壺實驗發現，茶壺表面的附著物質主要為脂肪酸，其中以棕櫚酸和硬脂酸為最主要成分。推測脂肪酸來源應為製作烏龍茶過程中因高溫與揉捻破壞茶葉細胞，導致細胞膜主要結構成份－磷脂質裂解所產生，當以熱開水泡茶時，部分脂肪酸會釋出於茶湯中，並藉由紫砂壺體的微小氣孔間隙揮發至壺體表面而附著。

關鍵字

養壺 ； 紫砂壺 ； 烏龍茶

並列摘要

Tea is a traditional beverage with beneficial health functions, and widely consumed in Chinese society. To enhance the aroma, color and taste of tea, infusion is traditionally prepared by immersing tea granules with hot water in zisha teapots. For the tea consumers, it is part of enjoyment to observe the gradual change of surface coating in zisha teapots, and the practice of this teapot maintenance is regarded as an art of tea culture called ＂Yang Hu＂. Waterproof films of zisha teapots were formed by preparing oolong tea and Tzen oolong tea, and found to be mainly fatty acids and linear hydrocarbons, particularly rich in plamitic acid and stearic acid. The two abundant saturated fatty acids, palmitic acid and stearic acid, coated on the surface of teapots were presumably originated from membrane phospholipids of tea leaf cells that were disintegrated during the heating and shaping processes of manufacturing oolong tea. Palmitic acid and stearic acid might be partially dissolved in tea infusion and evaporated to the surface of teapots for deposition via the cavities within the zisha teapots.

並列關鍵字

oolong tea ； Yang Hu ； zisha teapot