Efecto del almidón resistente de banano (Musa cavendish AAA) sobre el control metabólico en ratas wistar con dieta alta en sacarosa

this study determined the effects 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 the resistant starch.