Awa (Tokushima) lactate-fermented tea as well as green tea enhance the effect of diet restriction on obesity in rats

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Author(s)

    • Sogawa Misako
    • Master’s Program in the Graduate School of Human Life Science, Graduate School of Human Life Science, the Graduate School at Shikoku University|Department of Nutritional Physiology, Institute of Health Biosciences, the University of Tokushima Graduate School
    • Kishi Kyoichi
    • Department of Nutritional Sciences, Nagoya University of Arts and Sciences
    • Nikawa Takeshi
    • Department of Nutritional Physiology, Institute of Health Biosciences, the University of Tokushima Graduate School
    • Seura Takahiro
    • Master’s Program in the Graduate School of Human Life Science, Graduate School of Human Life Science, the Graduate School at Shikoku University
    • Kohno Shohei
    • Department of Nutritional Physiology, Institute of Health Biosciences, the University of Tokushima Graduate School
    • Hirasaka Katsuya
    • Department of Nutritional Physiology, Institute of Health Biosciences, the University of Tokushima Graduate School
    • Harada Akiko
    • Department of Nutritional Physiology, Institute of Health Biosciences, the University of Tokushima Graduate School
    • Okumura Yuushi
    • Department of Nutritional Physiology, Institute of Health Biosciences, the University of Tokushima Graduate School
    • Yamamoto Shigeru
    • Department of Lifestyle Medicine and Nutritional Sciences, Ochanomizu University

Abstract

Drinking tea is recommended for promoting health due to its bioactive nutrients, such as catechins and caffeine. In Tokushima area, we have a unique traditional tea, named Awa tea, which are fermented with <I>Lactobacillus pentosus and Lactobacillus plantarum</I>. The present study was designed to investigate anti-obesity effects of the Awa tea and compare with those of non-fermented green tea. Obese male Wistar rats (19 weeks of age) were given by low energy diets containing 3% of Awa and green tea extracts, respectively, or without any tea extracts (control), for 4 weeks. Awa tea contained smaller amount of catechins than green tea, although they contained similar amounts of polyphenols. This finding indicates that there are distinct kinds of polyphenols from catechins. The diets containing Awa and green tea extracts further decreased whole body weight, fat tissue mass and plasma leptin level, compared with control diet. In addition, their diets increased the daily amount of lipid excreted to feces and total 24-h-energy consumption, compared with the control group. However, there is no significant difference in these anti-obesity effects between Awa tea and green tea. Our results indicate that Awa lactate-fermented tea as well as green tea similarly enhance the effect of diet restriction on obesity, at least in part, through the increase in fat energy consumption and the decrease in fat absorption in rats. J. Med. Invest. 56: 42-48, February, 2009

Journal

  • The Journal of Medical Investigation

    The Journal of Medical Investigation 56(1,2), 42-48, 2009

    The University of Tokushima Faculty of Medicine

Codes

  • NII Article ID (NAID)
    130004465165
  • Text Lang
    ENG
  • ISSN
    1343-1420
  • Data Source
    J-STAGE 
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