Bioavailability of selected phytochemicals in the extracts of fluted pumpkin (Telfairia occidentalis), tomato (Lycopersicum esculentum) and eggplant (Solanum melongena)

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  • Abstract

    Background: Enough information about the actual amount of individual phytochemicals in vegetables and the amount absorbed and utilized is not known.

    Objective: This study evaluated flavonoid, saponin and phenol content of aqueous extracts of tomato, fluted pumpkin and eggplant as well as the bioavailability of these phytochemicals in rat.

    Methods: The phytochemical content of the vegetable extracts and the serum, faecal and urinary phytochemicals were determined using standard procedures.

    Result: The flavonoid content of tomato, fluted pumpkin and eggplant extracts were 90.230.04mg/100ml, 76.130.02mg/100ml and 14.340.02mg/100ml, respectively. The eggplant extracts had the highest saponin (73.290.46mg/100ml) and phenol (158.140.05mg/100ml) content. The rats fed tomato extracts had the highest intake (24.080.00mg) and tissue store (21.880.04) of flavonoid relative to the other extracts. The serum saponins for rats fed eggplant (0.250.05mg) extract was comparable to those rats fed tomato (0.220.04mg) and fluted pumpkin (0.260.05mg) extracts regardless of high intake (17.770.01mg). However, they had the highest tissue saponin (16.870.05mg). The group of rats fed the fluted pumpkin extract had the highest serum phenol (0.490.06mg).

    Conclusion: The vegetables can be considered good sources of phytochemical since their extracts were rich in the phytochemical studied.




Article ID: 1027
DOI: 10.14419/ijbas.v2i3.1027

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