探讨12种稻米对糖尿病大鼠餐后血糖影响，筛选出适于糖尿病患者食用的稻米品种.选择12例糖尿病大鼠作为实验研究对象，每天早晨进食一种稻米作为早餐，进食稻米量为2 g (稻米含有可利用碳水化合物)/kg(糖尿病大鼠体重).测定糖尿病大鼠空腹及其餐后30 min、60 min、120 min、180 min共5个时间点血糖值，计算其血糖指数.将市售白粳米作为此实验的参照标准，将其血糖指数定为100；而其它品种稻米的血糖指数相应分别从大到小顺序依次是：红光粳(81.63±8.69)、天龙香(78.76±8.20)、秀水粳(64.61±7.07)、珍珠糯(62.09±4.65)、降糖米(61.32±6.33)、黑米(61.27±5.93)、水3(59.56±5.56)、楚糯(58.33±4.88)、红米(56.92±6.25)、新丰2号(53.41±4.23)、泰国糯(47.49±3.99)、桥米(44.22±6.51).从中可知，泰国糯和桥米的血糖指数显著低于天龙香(ρ<0.01)；由此可认为，泰国糯和桥米是较适于糖尿病患者食用稻米.% To evaluate the postprandial blood glucose responses of diabetic rats to twelve kinds of rice and to sift rice which is suitable for diabetic patients. Twelve diabetic rats took one kind of rice from the twelve kinds of rice as breakfast. The amount of rice was 2 g(available carbohydrates in rice)/kg(weight of diabetic rats). Fasting and postprandial blood glucose 30 min、60 min、120 min、180 min after meals were examined. And the glycemic index of rice was calculated. The sold white japonica rice was served as the standard reference food,and the glycemic index was set 100,and the order of glycemic index of other varieties of rice respectively from big to small was:red light japonica(81.63±8.69),day dragon sweet(78.76±8.20),silk japonica(64.61±7.07),pearl waxy (62.09±4.65),hypoglycemic meters(61.32±6.33),black rice(61.27±5.93),water 3(59.56±5.56), chu waxy(58.33±4.88),red meters(56.92±6.25),xin feng 2(53.41±4.23),Thailand waxy (47.49±3.99),bridge meters(44.22±6.51). From this,the glycemic index of Thailand waxy and bridge meters was significantly smaller than day dragon sweet(ρ<0.01). Conclusion:Thailand waxy and bridge meters are more suitable for diabetic patients to eat.
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