The development of low glycemic index cookie bars from foxtail millet ( Setaria italica ), arrowroot ( Maranta arundinacea ) flour, and kidney beans ( Phaseolus vulgaris )

Abstract

Wholegrain foods are becoming increasingly popular as a high fiber dietary supplement recommended for people with diabetes. In Indonesia, the incidence of diabetes mellitus has almost doubled recently and poses a significant health risk with the high prevalence of obesity and cardiovascular diseases. The present research aimed to develop cookie bars from foxtail millet, arrowroot flour, and kidney beans. The physical, chemical, and sensory properties were evaluated by selecting the best formula to test the glycemic index. Three formulae of cookie bars, which had different percentages of foxtail millet, kidney beans, and arrowroot flour were evaluated. The results showed that the three formulae (F1, F2, F3) had °Hue values of 53.77, 58.46, and 58.31, and breaking force of 8.37, 10.12, and 5.87 N, respectively. While all other nutritional content were significantly different between formulae, the total crude fat was not. The F2 cookie bar was selected and evaluated for the glycemic index because it has the best sensory properties, lowest total sugar and available carbohydrate content. F2 cookie bars that contain 15% foxtail millet, 15% arrowroot flour, and 30% of kidney beans have a glycemic index of 37.6 hence it could be classified as a low glycemic index cookie bar. In conclusion, our findings indicated that F2 cookie bars can be further developed as a suitable diabetic food since it has the best physico-chemical properties, sensory properties, and low glycemic index.

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