Matsuura Toshiki, Yoshikawa Yukako, Masui Hironori, Sano Mitsuaki
Department of Food Science and Nutrition, School of Human Environmental Sciences, Mukogawa Women's University, Nishinomiya, Japan.
Yakugaku Zasshi. 2004 Apr;124(4):217-23. doi: 10.1248/yakushi.124.217.
The inhibitory effects on the intestinal digestion and absorption of sugar of health teas that claim beneficial dietary and diabetes-controlling effects were compared in rats using portal cannulae. The measured durations were the times during which the elevation of portal glucose levels resulting from continuous intragastric infusion of sucrose or maltose was suppressed by concentrated teas. The teas investigated included salacia oblonga, mulberry, guava, gymunema, taheebo, yacon, and banaba. The duration of the inhibitory effect on the sucrose load of salacia oblonga, mulberry, and guava were 110 min, 20 min, and 10 min, respectively. In contrast, gymunema, taheebo, yacon, and banaba had no significant effect on the continuous infusion of sucrose. These results suggest that there is considerable difference in the efficacy of commercial health teas in influencing glucose absorption.
使用门静脉插管法在大鼠中比较了宣称具有有益饮食和控制糖尿病作用的保健茶对肠道糖消化和吸收的抑制作用。测量的时长是指连续胃内输注蔗糖或麦芽糖导致的门静脉葡萄糖水平升高被浓缩茶抑制的时间。所研究的茶包括长柄匙羹藤、桑椹、番石榴、匙羹藤、太赫兹、雪莲果和巴拿巴。长柄匙羹藤、桑椹和番石榴对蔗糖负荷的抑制作用持续时间分别为110分钟、20分钟和10分钟。相比之下，匙羹藤、太赫兹、雪莲果和巴拿巴对连续输注蔗糖没有显著影响。这些结果表明，市售保健茶在影响葡萄糖吸收方面的功效存在相当大的差异。
