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标题：Modulation of Maltose Preference by Selection from Dextrin, Maltose and Glucose Diets in Zinc-Deficient Rats
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作者：Yoko HORIKAWA ; Daisuke UEHARA ; Koichi MATSUDA 等
期刊名称：Journal of Nutritional Science and Vitaminology
印刷版ISSN：0301-4800
电子版ISSN：1881-7742
出版年度：2008
卷号：54
期号：3
页码：203-209
DOI：10.3177/jnsv.54.203
出版社：Center for Academic Publications Japan
摘要：This study examined whether the chain length of glucose in the diet could affect the selection of foods by Zn-adequate and Zn-deficient rats. Dextrin, maltose and glucose were used as sources of carbohydrate in the diet and the selection patterns of the rats were analyzed for 28 d by a 3-choice selection. Diets provided as a set of three either Zn-adequate or Zn-deficient diets were rotated daily. The Zn-adequate control rats selected widely from the three diets throughout the 28 d. In contrast, rats fed a Zn-deficient diet selected exclusively and continuously the dextrin diet or dextrin and glucose diets from the three diets over the experimental periods. The average daily total food intakes of rats fed a Zn-deficient diet were very significantly decreased. The selections of dextrin, maltose and glucose diets in the 3-choice methods of the control rats were 5.7±1.6^b, 5.8±2.0^b and 2.7±0.9^a g/d, respectively ( p <0.05), and those of the Zn-deficient rats were 6.4±2.5^c, 0.8±1.3^a and 2.6±1.4^b g/d, respectively ( p <0.05). The ratios of the selected maltose-diet in the Zn-adequate control and the Zn-deficient rats were 40.8±13.8 and 9.0±15.6%, respectively ( p <0.01) and those of the dextrin-diet were 40.3±11.4 and 63.0±22.3%, respectively ( p <0.05). The decreased preference for the maltose-diet in the Zn-deficient rats may reflect the increased selection of the dextrin-diet.
关键词：zinc deficiency;maltose;dextrin;glucose