Abstract:
The objective of this study was to test for the presence of phytochemical constituents and to evaluate the
antioxidant activity of carob fruit extracts. The fruits were collected from the Botanical Garden in Kadugli
(South Kordofan State) during December 2018. The samples were dried under shade, grinded and then
extracted by immersion using distilled water, ethanol 99% and hexane. Water yielded 8.9%; ethanol 17.5%
and hexane 0.884% extract. The evaluation of antioxidant activity of different crude extracts was
determined by 2.2-di (4-tetra-octyl-phenyl) -1-bicryl hydrazyl free radical (DPPH) method. The antioxidant
activity was in the order of water (80 + 10.0)> ethanol (25 + 0.02)> hexane (16+0.02) extract. Water extract
showed the highest antioxidant activity which is comparable with the antioxidant activity of propyl gallate
(91+0.01). All extracts were found to contain tannins and terpenoids except for the absence of saponins and
alkaloids in hexane extract and alkaloids in ethanol extract. Flavonoids were not detected in all extracts. |
