The chemical constituents, anti-inflammatory and anti-nociceptive activities of the leaf essential oil hydrodisitlled from the Gardenia jasminoides J. Ellis (Rubiaceae) were reported. The chemical constituents of the essential were analyzed using gas chromatography-flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). The hot plate and carrageenan-induced models were used to determine the anti-nociceptive and anti-inflammatory activities. The main compounds of the oil were pentadecanal 17 (49.2%), geranial 4 (12.3%), ar-turmerone 14 (8.2%) and 10-epi-γ-eudesmol 10 (6.2%). The essential oil of G. jasminoides at 100 and 400 mg.kg-1 doses significantly (p < 0.001) increased the latency period for the reaction duration in the anti-nociceptive study. The carrageenan-induced edema model reveals the suppression of inflammatory mediators (p < 0.001) within 1st, 2nd and 4th h for 100 mg.kg-1 dose, 1st and 4th h (200 mg.kg-1) and 1st-3rd h (400 mg.kg-1). The results indicate the potential of G. jasminoides essential oil as a source of pain relieving agent. تفاصيل المقالة

In the present study, the volatile compounds identified in the essential oil from the flowers of Terminalia ivorensis A. Chev (Combretaceae) collected from Kaduna, Northern Nigeria, are reported. Essential oils were obtained using hydrodistllation in a Clevengertype apparatus. The yield of the light yellow oil was found to be 0.22% (v/w, dry weight basis). The content and composition of the oil were analyzed by gas chromatography (GC-FID) and gas chromatography with electron impact mass spectrometry (GC-MS). The main compounds of the oil were δ-3-carene (29.4%) and α-pinene (20.9%). To the best of our knowledge, this is the first report on the essential oil constituents of any part of T. ivorensis. تفاصيل المقالة