Abstract:

The objective of this study was to investigate the anti-obesity function of kombucha, a traditional fermented tea beverage. With body weight gain, body fat content, serum lipid level, organic indexes, liver and fat organization forms as the indicators, the high-fat induced obese mice were fed for 11 weeks to compare the effects of tea leaching solution (5 g of Yunnan black tea was soaked with boiling water three times, for 10 min each time, and then diluted to 1 L), A4 (Gluconacetobacter sp. A4) broth (fermented 1 L of tea leaching solution containing 80 g of glucose under 10% inoculation amount of strain A4 seed liquid at 30 ℃ for 8 d ), kombucha broth (fermented 1 L of tea leaching solution containing 80 g of sucrose under 20% inoculation amount of kombucha mother liquor at 30 ℃ for 8 d) at the dose of 10 ml/kg bw on the weight control of mice. The results showed that all the three liquids delayed the body weight gain, reduced the body fat content and fat accumulation in the liver, and lowered the course of adipocyte growth. Among them, A4 broth performed the most significant effects on the body weight control of dietinduced obesity mice.

Key words: kombucha, Gluconacetobacter sp. A4, diet-induced, D-saccharic acid 1,4-lacton, obesity