National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Sweet potato is one of staple food crop in Africa, often relegate to secondrate/place, which can play a vital role in combating food shortage and malnutrition including hidden hunger, overweight and obesity among the population. To establish scientific basis for efficient valorization and sustainable utilization of the crops in Benin, the assessment of mineral composition of ten selected cultivars (01 cream, 02 white, 03 yellow and 04 orange flesh-colored) was carried out using standard spectrophotometry procedures. The mineral composition of the tubers on dry weight basis ranged from: 0.53 to 0.73 mg/100 g for the iron, 0.23 to 0.27 mg/100 g for zinc, 23.04 to 29.97 mg/100g for calcium, 21.30 to 25.40mg/100 g for magnesium, 42.00 to 46.33 mg/100 g for phosphorus, 308.67 to 328.67 mg/100 g for potassium and 29.00 to 34.00 mg/100g for sodium. Potassium represented the mineral salt recorded in highest amount in all the sample and can contribute in average to 19.78% and 15.83% to recommended dietary allowance of children and adults respectively. Pearson correlation analysis show that iron content of the cultivars is significantly correlated positively with magnesium and calcium content while negatively correlated with zinc content. The projection of the cultivars on the factorial axis 1 and 2 of the PCA allow to classify them into three (3) major group. Groupe1 assembles 03 cultivars (E3, E7 and E9, all orange fleshed), characterized by high iron, magnesium and calcium content while Group 2 and 3 clustered 04 cultivars each with E10 presenting characteristic of the two groups. Group 1 cultivars can be a good raw material for sweet potato-based infant and childbearing women formula. Ca/P; Na/K and Ca/Mg ratio showed that the ten cultivars analyzed are suitable to be a good food for impoverishment diseases such as hypertension and diabetes management.
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