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首页> 外文期刊>African Journal of Food, Agriculture, Nutrition and Development >Evaluation of Cytogenotoxic and Nutrient composition of three commonly consumed vegetables in South-Western Nigeria
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Evaluation of Cytogenotoxic and Nutrient composition of three commonly consumed vegetables in South-Western Nigeria

机译：尼日利亚西南部三种常用蔬菜的细胞遗传毒性和营养成分评估

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Consumption of leafy vegetables provides health benefits but sometimes may turn out to be the cause of certain health problems. Thus, adequate toxicological screening is needed to ensure safety of their consumption. Aqueous extracts of Corchorus olitorius L., Celosia argentea L., and Ocimum gratissimum L. were evaluated for cyto-genotoxic effects on Allium cepa L. root cells using 0.5, 1.0, 2.5, 5.0, 10.0, 25.0 and 50.0 part per thousand (ppt), each of the vegetable extracts. The levels of macronutrients (moisture, ash, protein, fibre, fat and carbohydrate) in the vegetables and some minerals (cadmium, copper, iron, lead, magnesium, nickel and zinc) of their aqueous extracts were determined. The carbohydrate values were in the order O. gratissimum > C. olitorius > C. argentea with 48.17% as the highest. The values obtained for ash, protein, fat, Mg and Zn contents were in the order C. argentea > C. olitorius > O. gratissimum , with the highest values of 19.98%, 30.79%,, 0.22% , 226.4 mg/L and 2.57mg/L, respectively obtained for C. argentea. The concentration of Cu and Pb were in the order of O.gratissium> C. argentea> C. olitorius with 0.67 and 0.21mg/L obtained for O.gratissium (P<0.05). The aqueous extracts of the three vegetables inhibited root growth and cell division in the A. cepa root tips, with the highest inhibitory effects observed in C. argentea at 50.0 ppt. Induced chromosomal aberrations were significant only at 1.0 and 25 ppt of O. gratissimum, whereas there were no significant differences in aberrant cells in C. olitorius and C. argentea compared to the control. Chromosomal aberrations observed in the treated A. cepa roots include c-mitosis, Chromosome bridge and sticky chromosome. The results showed that the three vegetables have nutritive qualities but with root growth and mitotic inhibitory activities, which were severe in C. argentea. Although the result indicates that chromosomal aberrations might be induced at higher concentrations, the antimitotic potential of the extract of C. argentea may favour its uses in the development of drugs to prevent the uncontrolled proliferation of cancer cells of which investigation is required.
机译：食用多叶蔬菜有益健康，但有时可能导致某些健康问题。因此，需要进行足够的毒理学筛查以确保其消费的安全性。使用千分之0.5、1.0、2.5、5.0、10.0、25.0和50.0的千分之一（2,000）评价了Corchorus olitorius L.，Celosia argentea L.和Ocimum gratissimum L.的水提物对洋葱葱属根细胞的细胞遗传毒性作用（ ppt），每种蔬菜提取物。确定了蔬菜中的大量营养素（水分，灰分，蛋白质，纤维，脂肪和碳水化合物）的含量以及其水提取物中的某些矿物质（镉，铜，铁，铅，镁，镍和锌）的含量。碳水化合物值依次为O. gratissimum> C. olitorius> C. argentea，最高为48.17％。灰分，蛋白质，脂肪，Mg和Zn含量的值依次为C. argentea> C. olitorius> O. gratissimum，最高值为19.98％，30.79％，0.22％，226.4 mg / L和C. argentea分别获得2.57mg / L。 Cu和Pb的含量依次为O.gratissium> C。argentea> C。olitorius，获得的O.gratissium的浓度分别为0.67和0.21mg / L（P <0.05）。三种蔬菜的水提物抑制了洋葱曲霉根尖的生长和细胞分裂，在50.0 ppt的银假丝酵母中观察到了最高的抑制作用。诱导的染色体畸变仅在O. gratissimum的1.0和25 ppt时才显着，而与对照相比，C。olitorius和C. argentea的异常细胞没有显着差异。在经过处理的洋葱曲霉根中观察到的染色体畸变包括c有丝分裂，染色体桥和粘性染色体。结果表明，这三种蔬菜具有营养价值，但具有根部生长和抑制有丝分裂的活性，这在C. argentea中很严重。尽管结果表明在较高的浓度下可能会引起染色体畸变，但银茶假单胞菌提取物的抗有丝分裂潜力可能有利于其在药物开发中的用途，以防止癌细胞的不受控制的增殖，这需要进行研究。

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