Background This study was designed to determine the role of aqueous extract of water lily (Nymphaea lotus) for potential antibacterial activity against some gram-negative fish pathogenic bacteria.Material and methods Aqueous extracts of the dried whole plant Nymphaea lotus was tested by the agar disc diffusion method against four bacteria strains, namely, Escherichia coli, Vibrio anguillarum, Pseudomonas fluorescens, Aeromonas hydrophila and Salmonella typhi. Inhibitory growth values were determined in colony forming unit per gram (cfu/g) for each pathogen while examination of phytochemical constituents of the crude extricate of the plant was also carried out qualitatively.Results Phytochemical screening of the crude aqueous extract revealed the high presence of saponins, alkaloids and carbohydrate, moderate presence of cardiac glycosides, tannins, phenolics, anthroquinones, terpenoid, quinones, catechins and trace of flavonoids.Conclusion The antibacterial analysis of crude aqueous extracts showed moderate varying degrees of resistance against the microbes especially Escherichia coli and Vibrio anguillarum where complete growth inhibition was observed. Hence, this plant aqueous extract can help in the treatment of fish bacterial infections.Journal of Biomedical Sciences. 2015;2(4):38-42.
The nutritional and anti-nutritive composition of Karaya gum tree (Sterculia setigera) seed collected from Federal College of Wildlife Management estate, New Bussa, Nigeria was evaluated from October to December, 2013 with the aim of providing data that will guide the effective utilization and inclusion of this under exploited tropical plant seed in fish feed formulation. The seeds were washed, dried, grounded and analyzed for the proximate composition, vitamin and mineral contents as well as the anti-nutritive factors using standard procedures. The result showed that the mean values for the proximate composition were: moisture 5.20%, ash 3.95%, fat 26.03%, fiber 6.15%, protein 13.39% and carbohydrate 45.27%. The plant also contained vitamins and relatively adequate essential mineral elements of nutritional importance of macro elements such as calcium, potassium, sodium, magnesium and micro elements of iron, manganese, zinc and copper. Some anti-nutritional factor such as; alkaloids, phytate, cardiac glycosides, flavonoids, steroids and trace of oxalate were also found in the plant, but their composition will pose no serious nutritional problem if well processed before its inclusion in fish diet and could therefore be a cheap source of raw materials for the fortification applications in various fish feed formulations.
Bushmeat have provided complimentary protein for human population across the world over the centuries. This study assessed the concentration of heavy metals in bushmeats in New Bussa and its environs. Three carcass of bush meat (Kobus kob (Kob), Tragelaphus scriptus (Bushbuck) and Sylvicapra grimmia (Duiker)) were sourced from the study area. The carcass was digested and concentrations of nine heavy metals (Mn, Fe, Cu, Zn, Pb, Cr, Ni, Co and Cd) were determined using Atomic Absorption Spectrophotometer (AAS). Results obtained for the heavy metal analysis were subjected to one-way analysis of variance (ANOVA) while Pearson’s correlation was used to determine the relationship in the samples. The heavy metal concentration in muscle tissues of the selected bushmeat revealed that zinc with 815.00±13.00 mg/kg in Kob was the highest mean value of all meat samples, followed by Iron (479.00±10.00 mg/kg) in Duiker while Pb level in Bushbuck 213.00±3.00 mg/kg is outrageously the highest. Copper, Chromium and Nickel did not exceed the permissible limits as set by FEPA/WHO. The concentration pattern of heavy metals in bush meat show that Sylvicapra grimmia and Tragelaphus scriptus had the same pattern of Zn>Fe>Pb>Cr>Mn>Cu>Co>Ni>Cd concentration while Kobus kob pattern of association is Zn>Fe>Cr>Pb>Ni>Cu>Co>Cd>Mn. The comparative study of the heavy metal concentrations revealed that Zinc (Zn) recorded the highest frequency, followed by Iron (Fe) and Lead (Pb). This study has shown that high level of Pb in the samples from the study area is a matter of concern in bush meat consumption in the study area; hence people should be warned of impending danger in the consumption of heavy metals contaminated bush meat. Keywords: Bushmeat, heavy metals, concentration, toxicity, contaminated
An ethnobotanical survey of medicinal plants used in the treatment of malaria in Ilorin, Kwara State, Nigeria was carried out between March and June, 2019. Ethno-botanical data were collected by oral interview with the aid of a semi-structured questionnaire administered to forty-seven (47) herb sellers. The respondents were aware of the signs and symptoms of malaria and could readily distinguish the ailments from other feverish symptoms and conditions. Symptoms reported include body weakness, high body temperature (hot skin), loss of appetite, coldness, mouth bitterness, headache, coloured eyes (yellow), sleepless night and urine colouration (yellowish). From the study, a total of thirteen (13) plant species belonging to nine (9) families including Aannonaceae, Aapocynaceae, Rrubiaceae, Oochnaaceae were described as being used for the treatment of malaria. The plant parts used were leaves, root, stem bark and seed with roots being the most used plant part. It was also observed that recipes were made from combination of different parts from more than one plant species including bark, root and leaves while some were made from single plant part. The most preferred mode of administration was oral, while decoction and infusion were the most preferred method of preparation. However, the study observed that Picralima nitida, Enanchia chloranta and Morinda nucida were the frequently mentioned plants. Hence, these plant species could be considered as promising candidates for further scientific validation in the search for new, effective and affordable antimalarial drugs.
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