Nutritional and Mineral Compositions of Tiger Nut (Cyperus esculentus) Tubers from Different Ecotypes in Niger

Nutritional characterization is an essential component for a better knowledge of the different ecotypes Niger tiger nut. To do this, 20 samples nut tubers were taken nutritional investigation, including 5 representative and 15 others randomly selected from collected in producing villages Maradi Dosso regions. The content mineral elements was analyzed by atomic absorption spectrophotometer macronutrients determined types assay. results showed that are rich lipids (12,00% to 25.20%), carbohydrates (24.50% 47.70%), fiber (21.90% 39.40%), protein (2.90% 11.90%), such as calcium (14.100± 5.44a 65.380± 19.940), iron (0.881± 0.017 15.809± 6.524), potassium (102.800± 2.970 308.410± 8.900), magnesium (366.800 ±1.942 471.830± 8.927). fat much higher small tigernut with average 21.60% than large 14.90%. Copper (Cu), Sodium (Na), Calcium (Ca) Magnesium (Mg) contents significantly identical all studied. On other hand, Zinc (Zn), Iron (Fe), Potassium(K) E1(Big tigernut), E2(Small nut), E3(Small E4(Small black E5(Small wild E7(Small E8(Small E9(Small E11(Small E12(Small et E15(Big tigernut) compared ecotypes. study composition ecotype higher. Compared foods, certain studied(E1, E2, E3, E4, E5, E7,E8, E9, E11, E12 E15) richer leaves Moriga oleifera (3.810 ± 0.120mg/100g), pods Vigna unguiculata (7.800± 0.150mg /100g) Hubicus sabdariffa (8.270 1.010 mg/100 g).