ABSTRACT
ABSTRACT One oil sample isolated from leaves of Artabotrys jollyanus Pierre, Annonaceae, from Côte d'Ivoire has been analyzed by GC(RI), GC-MS and 13C NMR. In total, thirty-seven compounds accounting for 96.9% of the relative composition have been identified. The composition of the essential oil was dominated by trans-calamenene (15.7%), α-copaene (14.8%), α-cubebene (10.4%), cadina-3,5-diene (10.3%), (E)-β-caryophyllene (6.3%) and cadina-1,4-diene (6.1%). 13C NMR spectroscopy was very useful in the identification of trans-calamenene, 7-hydroxycalamenene, cadina-3,5-diene and cadina-1,4-diene. Moreover, monitoring the evolution of the leaf essential oil composition and the yield on a 12-month period (one sample per month) was achieved. The twelve essential oil samples exhibited a chemical homogeneity but the yield varied from sample to sample (0.26-0.60%).
ABSTRACT
Boiled aqueous extract from five Ivorian edible leaves (Solanum scabrum, Ipomea batatas, Corchorus olitorius, Basella alba, Hibiscus sabdariffa) have been analyzed for their antioxidant contents, phytochemical and nutritional compositions. I. batata extract showed the highest amount of antioxidant (167.52 µg/100gTE), total polyphenol (34.18 mg/100 g TE) and total flavonoid (12.67 mg/100g TE). The higher energy value (225.5 kcal) was obtained in S. scrabrum extract. The highest amount of zinc and potassium were found in S. scrabrum extract (0.28 and 362.1 mg/100 g DW; respectively). Maximum amount of copper (1.16 mg/100 g DW) and calcium (777.9 mg/100 g DW) were obtained in H. sabdariffa extract. The highest content of iron (49.81 mg/100 g DW) and magnesium (201 mg/100 g DW) were observed in B. alba extract. The highest content of sodium (2.39 mg/100 g DW) was obtained in C. olitorius extract. All extracts contained secondary metabolites such as polyphenols (tannins, flavonoids), sterols and terpenes, which have medicinal potent.