Resumen

OLVERA-HERNANDEZ, V et al. Effect of banana resistant starch (Musa cavendish AAA) on metabolic control in wistar rats with a high-sucrose diet. Universidad y ciencia [online]. 2012, vol.28, n.1, pp.51-56. ISSN 0186-2979.

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.

Palabras llave : Resistant starch; obesity; cardiovascular disease; metabolic syndrome.

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