Effect of Ivorian Taro (Colocasia esculenta L. cv yatan and fouê) Corm Flours Addition on Anti-nutritional Factors and Mineral Bioavailability of Wheat (Triticum aestivum L.) Flour
A. Hyacinthe, Y. Kouadio, D. C. Ghislaine, Amon Anon Simplice, K. Patrice
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引用次数: 0
Abstract
The objective of this study was to evaluate the effect of ivorian taro (Colocasia esculenta cv yatan and foue) corm flours (TCFyf) addition on anti-nutritional factors and mineral bioavailability of wheat (Triticum aestivum L.) flour (WF). WF was substituted with TCFyf at increasing levels [0% (control), 1%, 3%, 6%, 9% and 12%] in the formulation. Compared to WF, calcium, potassium, magnesium, phosphorous, sodium, copper, zinc, iron, manganese, phenolic compound, oxalate and flavonoid contents of wheat/ivorian taro (Colocasia esculenta cv yatan) corm composite flour (WF-TCFy) gradually increased with increasing the level of taro (Colocasia esculenta cv yatan) corm flour (TCFy) in WF-TCFy. The same trend was observed in potassium, phosphorous, copper, zinc, iron, manganese, phenolic compound, oxalate and flavonoid contents of wheat/Ivorian taro (Colocasia esculenta cv foue) composite flour (WF-TCFf) increased with increasing of taro (Colocasia esculenta cv foue) corm flour (TCFf) in WF-TCFf. Inversely, substitution of WF with TCFf caused gradual decreased in sodium, magnesium and calcium contents of WF-TCFf. Substitution of WF with TCFyf decreased phytate and tannin contents in the WF-TCFyf. The K/Na ratios were greater than 27. When WF substitution was achieved by TCFyf, the Ca/P ratio of the WF-TCFy did not change while that of WF-TCFf decreased. In all cases, the Ca/P ratios were below 0.3. The levels of the toxic substances were not high enough to cause concern as about 80 mg /g diet is detrimental to health. These results could encourage the use of TCFyf for the development of food products.