茶飲料調降體脂肪及血脂肪之研究

茶僅次於水是最普遍的飲料，是全世界最受歡迎的一項飲品，許多細胞與動物試驗結果指出，飲用茶與預防心血管疾病、癌症、抗氧化及降低體脂肪等作用有關。這些生理功能主要來自茶中所含的多酚化合物，特別與兒茶素有關。本研究採隨機、平行對照控制、雙盲交叉設計之人體試驗，評估飲用茶飲料對體脂肪調降及血脂調節之功能性。本研究分別公開徵求39位受試者參與，將受試者分為三組為別為試驗組(綠茶組、烏龍茶組)、對照組，試驗組之受試者每天飲用1200毫升之茶飲料(兒茶素含量為960 mg)，對照組則飲用安慰劑飲料，飲用為10週。試驗初期(第零週)、第二週、第六週、第十週、及停止飲用兩週後進行體位測量，取血試驗分析血脂的變化，測定血液中低密度脂蛋白質(low-density lipoprotein; LDL)氧化之情形。結果顯示，連續飲用綠茶、烏龍茶飲料10週後，體脂肪皆有顯著降低，而體重、身體質量指數則無差異，此外，在綠茶、烏龍茶組之受試者血液中總膽固醇含量顯著降低，試驗組與對照組中之高密度脂蛋白質膽固醇(high-density lipoprotein cholesterol; HDL-C)都顯著地提升，低密度脂蛋白質之氧化延遲時間(lag time)在綠茶、烏龍茶組中皆顯著地較試驗前長。因此攝取茶飲料可能具有改善血脂肪及調降體脂肪之功效。

關鍵字

茶；兒茶素；體脂肪；總膽固醇；低密度脂蛋白

並列摘要

Tea only inferior water the most universal drink, is drinks which the world most welcome, Many cell and animals studies show that tea consumption has benefit on the prevention of cardiovascular disease, cancer, antioxidant and body fat reduction. Most functions are from tea polyphenols, especially catechins.The study employed, random, parallel placebo controlled, double blind and cross-over design to evaluate body fat and blood lipid regulation of tea drink. This research distinction solicits 39 publicly the trying participation in ten week trials. subjects were divided into there groups. Each subject of experimental group drank 1200ml of green tea (including 960 mg catechins) every day for continuous tenth weeks; each subject of experimental group drank 1200ml of Oolong tea (including 960 mg catechins) every day for continuous tenth weeks; each subject of placebo group drank placebo drink (1200ml) every day for continuous tenth weeks. The experimental initial period (zero week), second week, sixth week, tenth week, the stop drinks two weeks later carries on the body posture survey and to draw blood the experimental analysis blood fats change and determines in the blood the low density lipoprotein nature (low-density lipoprotein; LDL) situation of the oxidized. Results showed that significant difference in body fat and after tea consumption the tenth weeks. However, body weight and BMI not significant difference. Another results revealed that total cholesterol were significantly decrease; HDL-c contents were significantly increased after tenth weeks of tea consumption. Oxidized of lag time the low density lipoprotein nature (low-density lipoprotein; LDL) before the green tea, the Oolong tea group all obviously experiments is long. Therefore the ingestion tea drink possibly has improves effect of the blood of fat and the lowering body fat.

並列關鍵字

Tea ； catechins ； body fat ； Total cholesterol ； low-density lipoprotein ； LDL

參考文獻

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吳亮宜簡永亮蘇正元何承璋盧崇如孫璐西 (2003) 市售綠茶飲品對倉鼠血脂及低密

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茶飲料調降體脂肪及血脂肪之研究

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