Bioactive composition, free radical scavenging and fatty acid profile of Ximenia americana grown in Ethiopia

Abstract

Ximenia americana is among wild edible fruit indigenous to Ethiopia. The fruit reported as indispensable source of phytochemicals and health imparting components. However, the phytochemicals constituents, antioxidant activities and fatty acid profile of Ethiopian X. americana cultivar studies are still scarce. This research aimed at evaluation of flesh and seed of Ethiopian X. americana yellow and red colored cultivars for bioactive component, antioxidant activities, fatty acid profiles and physicochemical characteristics. The red fruit flesh had higher total phenol (3292.60 mg GAE/100 g) while yellow fruit flesh showed higher total flavonoid (173.95 mg quercetin/100g). The higher DPPH∗ radical scavenging activity (97%) was observed in red fruit flesh due to its higher phenolic content. The yellow X. americana seed (90.69 mg QE/100g) had higher total flavonoid contents than the red seed (18.64 mg QE/100g). The dominant unsaturated fatty acid found in red X. americana flesh was oleic acid (26.29%), and the main saturated fatty acid detected was palmitic acid (29.78%). The seed also had high unsaturated fatty acid which was elaidic acid, (84.32%). Ximeninic acid (12.78%) which is expected to be detected in Ximenia americana seed oil was also observed. The highest content of fat (52.23%) and protein (16.59%) was obtained in yellow fruit seed and the lowest fat content observed in yellow flesh (7.25%). Most abundant minerals were calcium (42.45–49.55 mg/100g) and manganese (26.73–33.92 mg/100g) in seeds. Whereas, fleshs displayed higher magnesium (76.3–98.27 mg/100g) and copper (1.35–1.52 mg/100g) contents. The Ethiopian X. americana fruit cultivars represent high nutritional and medicinal values despite variation related to genetic variability.

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