International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2016.5(1): 103-115

Mineral Composition of Ten Elites Sweet Potato (Ipomoea Batatas [L] Lam) Landraces of Benin
A. F.Sanoussi, A.Adjatin, A. Dansi, A.Adebowale, L.O.Sanni and A.Sanni
Laboratory of Biotechnology, Genetic Resources and Plant and Animal Breeding (BIORAVE), Faculty of Sciences and Technology of Dassa, University of Abomey-Calavi, 071BP28, Cotonou, Benin
Food Science and Technology Department, University of Agriculture, Abeokuta, PMB 2240, 110001, Ogun State, Nigeria
Laboratory of Biochemistry and Molecular Biology, Faculty of Sciences and Technology (FAST), University of Abomey-Calavi (UAC), P.O. Box 526 Cotonou, Benin
*Corresponding author

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.

Keywords: Sweet potato (Ipomoea batatas), Mineral composition, Recommended Dietary Allowance, Orange flesh cultivars, Correlation
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Int.J.Curr.Microbiol.App.Sci. 5(1): 103-115. doi: