Laboratoire de chimie Bio Organique et de substances naturelles(LCBOSN), Unité de Formation et de Recherche Sciences Fondamentales et Appliquées (UFR SFA), Université Nangui Abrogoua, 02 BP 801 Abidjan 02, Côte d'Ivoire
This study aims to contribute to the valuation of unconventional wild oilseeds, by characterizing certain nutritional parameters of the seeds and liquid fat contents of P. macrophylla and T. heckelii, from the flora biodiversity of Côte d'Ivoire.P. macrophylla seeds have a moisture content of 11.9% with 2% ash and 2% dietary fibre while T. heckelii contains 7.5% moisture, 3.33% ash and 3.2% dietary fibre. The mineral analysis of the seeds reveals the strong predominance of minerals potassium (K) and phosphorus (P). The seeds of P. macrophylla contain 1295 mg/100g DM (dry matter) of K and 1141mg/100g DM of P. The respective contents of these two macroelements in T. heckelii are 554.6 and 450.7 mg/100g DM. Analysis revealed that P. macrophylla seeds are richer in trace elements (8.37 mg/100g DM of Fe, 5.18 mg/100g DM of Zn and 2.64 mg/100g DM of Mn) compared to T. heckelii (4.38 mg/100g DM of Fe; 1.45 mg/100g DM of Zn and 1.35 mg/100g DM of Mn). The liquid fat content was 57.7% and 64.7% respectively for P. macrophylla and T. heckelii. P. macrophylla oils have a density of 0.86, a refractive index of 1.51 and a viscosity of 0.55 mPas. As for T. heckelii, it was found a density of 0.84, a refractive index of 1.46 and a viscosity of 0.61 m2/S.
The phytochemical investigation carried out on five medicinal plants of Ivory Coast, used in the traditional treatment of the tooth decay first focused on the research of their chemical composition. The latter has resulted in the demonstration of several biomolecules (sterols, flavonoids, tannins, etc.), which have signed a good antioxidant profile. In a second time, it was devoted to the quantification of certain phytophenols. The results of this work indicated variable and significant levels overall. The stems of Ximenia americana exhibited the best antioxidant activity, which activity is dependent on its total phenolic compound rich (8802.94 ± 298.54 μgEAG / g), total flavonoids (18.39 ± 0.87%) and condensed tannins (99,369 ± 1,485 μgECT / mg).