Ercan N, Nuttall F Q, Gannon M C, Lane J T, Burmeister L A, Westphal S A
Metabolic Research Laboratory, Minneapolis Veterans Affairs Medical Center, MN 55417.
J Am Coll Nutr. 1993 Dec;12(6):703-9. doi: 10.1080/07315724.1993.10718362.
With progressive ripeness there is a decrease in starch and an increase in free sugar content of bananas. The starch also is considered to be poorly digestible. Therefore, we decided to study plasma glucose, serum insulin, C-peptide, and plasma glucagon responses to bananas with increasing degrees of ripeness. Seven male subjects with untreated noninsulin-dependent diabetes mellitus ingested 50 g carbohydrate as bananas of stage 4 (more yellow than green), 5 (yellow with green tip), 6 (all yellow), and 7 (yellow flecked with brown) ripeness. They also received 50 glucose on two occasions for comparative purposes. On a separate occasion water only was given as a control. The area responses were quantified by determining incremental areas using the water control as baseline. The mean glucose area following the 50 g glucose meals was 15.1 +/- 1.9 mM.h. After the ingestion of bananas of 4, 5, 6 and 7 ripeness the glucose area response was 42, 41, 51 and 48% of that after glucose ingestion, respectively. The insulin area response following glucose meals was 888 pM.h. Responses to 4, 5, 6 and 7 bananas were 85, 70, 61, 85%, respectively, of that following glucose ingestion. C-peptide data were similar to the insulin data. The glucagon area response was negative after glucose ingestion but was positive following banana ingestion. In summary, the glucose, insulin, C-peptide, and glucagon area responses varied little with ripeness of the bananas.
随着香蕉逐渐成熟，其淀粉含量降低，游离糖含量增加。淀粉也被认为难以消化。因此，我们决定研究不同成熟度香蕉对血浆葡萄糖、血清胰岛素、C肽和血浆胰高血糖素的反应。7名未经治疗的非胰岛素依赖型糖尿病男性受试者摄入了50克碳水化合物，形式为成熟度为4期（黄多绿少）、5期（黄带绿尖）、6期（全黄）和7期（带褐色斑点的黄香蕉）的香蕉。为了进行比较，他们还在两个不同时间摄入了50克葡萄糖。在另一个单独的时间只给予水作为对照。通过以水对照为基线确定增量面积来量化面积反应。50克葡萄糖餐之后的平均葡萄糖面积为15.1 +/- 1.9毫摩尔·小时。摄入成熟度为4、5、6和7期的香蕉后，葡萄糖面积反应分别为摄入葡萄糖后反应的42%、41%、51%和48%。葡萄糖餐之后的胰岛素面积反应为888皮摩尔·小时。对4、5、6和7期香蕉的反应分别为摄入葡萄糖后反应的85%、70%、61%、85%。C肽数据与胰岛素数据相似。摄入葡萄糖后胰高血糖素面积反应为负，但摄入香蕉后为正。总之，葡萄糖、胰岛素、C肽和胰高血糖素面积反应随香蕉成熟度变化不大。
