استخلاص الزيت الطيار من نبات الرازقي العراقي Jasminum sambac L. و دراسة تأثيره عاملا مضادا للأكسدة

Abstract EN

This study was detected to extraction and evaluation the quantity of flowers, leaves and stems volatile oil’s for Jasminum sambac plant cultivated in Iraq by using steam distillation method, and to know how the active compound in the oil by using Chromatography technique (GC-Mass), and was studied the Antioxidant activity for volatile oil by using1-diphenyl- 2-picryl - hydrazyl (DPPH) comparing with Ascorbic acid(positive control).the results showed that of (100 g) of Jasmine plant for each of flowers and leaves has produced volatile oil (5%) and (1, 5%) respectively, while the amount of the oil in stems was very little to the extant it was difficult to collect it.

The study has shown that volatile oil of flowers has (30 compounds) and had the highest compound concentration (Benzyl acetate), reaching its percentage (59.37%), followed Benzyl alcohol compound concentration (14.96%), then Benzyl propanoate compound concentration (5.25%).Concerning the leaves oil, the study showed that it contains (43 compounds) and that the compound (Benzyl acetate) has the highest concentration of (34.07%), followed by the compound N-carbobenzooxy arginine with the concentration of (15.28%), then benzyl propanoate compound with the concentration of (17.79%).the result showed the antioxidant activity of flowers oil is more effective than leaves oil and Ascorbic acid(positive control) at 100 Microliter/ml with 96.10% ,the leaves were 82.30% and Ascorbic acid 89.20%.