Asiimwe J, Sembajwe L F, Senoga A, Bakiika E, Muwonge H, Kalyesubula R
Department of Internal Medicine, School of Medicine, Makerere University College of Health Sciences, P. O. Box 7072, Kampala, Uganda.
Afr Health Sci. 2013 Sep;13(3):546-50. doi: 10.4314/ahs.v13i3.2.
There is an increase in number of patients with chronic kidney disease (CKD) in Uganda's health facilities looking for different options of preparing matooke (bananas), their staple food.
To establish and evaluate an effective method of removing potassium from bananas (matooke).
Bananas were sampled from 5 markets in Kampala, Uganda. Deionized water was used to soak the bananas and the potassium concentration was determined using an atomic absorption spectrophotometer in both the bananas and water after soaking for varying time intervals. We also determined the potassium concentrations in the bananas and the water after boiling the bananas at 200 degrees Celsius at intervals of 10 minutes (for 60 minutes).
The potassium concentration did not appear to change on soaking alone without boiling. However, on boiling, the concentration in the bananas decreased from about 1.4 ppm to approx. 1 ppm after 60 min; yet the concentration of potassium released into deionized water increased steadily from 0.0 ppm to about 1.2 ppm after 60 min of boiling.
This study demonstrates that boiling the bananas is a more effective way of removing the potassium from bananas than simply soaking them.
乌干达医疗机构中慢性肾病(CKD)患者数量不断增加,这些患者正在寻找制备其主食马托基(香蕉)的不同方法。
建立并评估一种从香蕉(马托基)中去除钾的有效方法。
从乌干达坎帕拉的5个市场采集香蕉样本。用去离子水浸泡香蕉,并在浸泡不同时间间隔后,使用原子吸收分光光度计测定香蕉和水中的钾浓度。我们还在200摄氏度下每隔10分钟(共60分钟)煮香蕉,然后测定香蕉和水中的钾浓度。
仅浸泡而不煮时,钾浓度似乎没有变化。然而,煮香蕉时,60分钟后香蕉中的钾浓度从约1.4 ppm降至约1 ppm;而煮60分钟后,释放到去离子水中的钾浓度从0.0 ppm稳步增加到约1.2 ppm。
本研究表明,煮香蕉比单纯浸泡更有效地去除香蕉中的钾。