EFECTO DEL ALMIDÓN RESISTENTE DE BANANO (Musa cavendish AAA) SOBRE EL CONTROL METABÓLICO EN RATAS WISTAR CON DIETA ALTA EN SACAROSA Eect of banana resistant starch ( Musa cavendish AAA) on metabolic control in wistar rats with a high-sucrose diet

This study determined the eects of banana resistant starch (Musa Cavendish AAA) on metabolic changes in blood, in rats with a high-sucrose diet. Newly weaned male Wistar rats with 150 g of body weight were fed 30% (w/v) sucrose ad libitum during 29 weeks. They were then fed the following diets: normal diet (DN) (control), cassava starch (AY), resistant starch (AR) and a formula containing resistant starch and cow milk (FAR) during four weeks. The animals were sacrified after 12 h of fasting and samples were obtained to determine glycemia and lipids. Glycemia values were lower in the group with the AR diet and sucrose (GSAR) than in the control group (77 1 vs 103 2 mg dL 1 , p < 0.01). Cholesterol levels in blood in the groups receiving sucrose decreased after treatment with AR (GSAR and GSFAR) compared with the DN group (131 4 and 122 10 vs 155 2 mg dL 1 , respectively, p < 0.01). HDL-Chol increased in the GSFAR group compared with the DN group (69 9 vs 54 2 mg dL 1 , p < 0.05). Triglycerides decreased in the GSFAR group compared with the control group (172 25 vs 290 46 mg dL 1 , p < 0.1). In conclusion, providing native banana resistant starch resulted in beneficial changes in glucose homeostasis and levels of serum lipids in rats fed a high sucrose diet. Further studies are needed to understand the action mechanism of