Isolation and Characterization of Anthocyanins in Four Varieties of <i>Vigna subterranea</i> (<i>Fabaceae</i>)

1. ¹ Training and Research Unit in Exact and Applied Sciences, Laboratory of Organic Chemistry and Applied Physic, Department of Chemistry, University de Ouagadougou, Ouagadougou, Burkina Faso
2. ² Laboratory of Research on Natural Substances, Faculty of Pure and Applied Sciences (F.P.A.S.), University of N’Djamena, N’Djamena, Chad
3. ³ Laboratory of Research on Natural Substances, Faculty of Pure and Applied Sciences (F.P.A.S.), University of N’Djamena, N’Djamena, Chad
4. ⁴ Chadian Institute of Agronomic Research for Development (CIARD), Deli, Chad
5. ⁵ Training and Research Unit in Exact and Applied Sciences, Laboratory of Organic Chemistry and Applied Physic, Department of Chemistry, University de Ouagadougou, Ouagadougou, Burkina Faso
6. ⁶ Training and Research Unit in Exact and Applied Sciences, Laboratory of Organic Chemistry and Applied Physic, Department of Chemistry, University de Ouagadougou, Ouagadougou, Burkina Faso