Immature seeds of Boscia senegalensis (Anza in Hausa language) used in human nutrition, undergo several treatments to remove bitterness. This study is to analyse the influence of removing bitterness on the nutritional value of these seeds. Seeds from 14 treatment methods are levied century in two department: Banibangou (Tillaberi) and Bambeye (Tahoua region). For the 14 methods, the contents of macronutrients (Fats and proteins contents) (fats and proteinaceous material), micronutrients (P, B, K, Ca, Mg, Mn, Cu, Zn, Fe and Na), in phytic acid as well as antioxidant activity are determined. At the macronutrient level the seeds are rich in proteins (16.11 to 22.8%). Analysis of the results shows a significant decrease in mineral content and a significant increase in protein levels s. After ash fractionation, a significant decrease in the content of P, K, Ca, Mg, Mn, Cu and B is observed for all these methods. On the other hand, the Na content shows a significant increase. The methods used in Banibangou don’t show significant increase in ORAC and GAE with the exception of the G3 method and those of Bambèye, all showed a significant decrease. It can be seen that the different treatment methods significantly reduce micronutrient levels. However, Boscia seeds are a source of protein and some minerals (Fe, Zn, Ca), better than some cereals (millet, maize) and cowpea, for populations.
