White tea (Camellia sinensis) extract reduces oxidative stress and triacylglycerols in obese mice

Food Science and Technology (Campinas)

Lílian Gonçalves Teixeira²  Priscilla Ceci Lages²  Tatianna Lemos Jascolka¹  Edenil Costa Aguilar²  Fabíola Lacerda Pires Soares¹  Solange Silveira Pereira¹  Nathalia Ribeiro Mota Beltrão²  Rafael De Oliveira Matoso²  André Márcio Do Nascimento¹  Rachel Oliveira De Castilho¹  Jacqueline Isaura Alvarez Leite² 

[1] ,Universidade Federal de Minas Gerais Institute of Biological Science Department of Biochemistry and ImmunologyBelo Horizonte MG ,Brazil

关键词: high-fat diet;    obesity;    oxidative stress;    white tea;    Camellia sinensis;    dieta hiperlipídica;    obesidade;    estresse oxidativo;    chá branco;    Camellia sinensis;   

DOI  :  10.1590/S0101-20612012005000099

来源: SciELO

【 摘 要 】

White tea is an unfermented tea made from young shoots of Camellia sinensis protected from sunlight to avoid polyphenol degradation. Although its levels of catechins are higher than those of green tea (derived from the same plant), there are no studies addressing the relationship between this tea and obesity associated with oxidative stress.The objective of this study was to evaluate the effect of white tea on obesity and its complications using a diet induced obesity model. Forty male C57BL/6 mice were fed a high-fat diet to induce obesity (Obese group) or the same diet supplemented with 0.5% white tea extract (Obese + WTE) for 8 weeks. Adipose tissue, serum lipid profile, and oxidative stress were studied. White tea supplementation was not able to reduce food intake, body weight, or visceral adiposity. Similarly, there were no changes in cholesterol rich lipoprotein profile between the groups. A reduction in blood triacylglycerols associated with increased cecal lipids was observed in the group fed the diet supplemented with white tea. White tea supplementation also reduced oxidative stress in liver and adipose tissue. In conclusion, white tea extract supplementation (0.5%) does not influence body weight or adiposity in obese mice. Its benefits are restricted to the reduction in oxidative stress associated with obesity and improvement of hypertriacylglycerolemia.

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