期刊
FOOD AND CHEMICAL TOXICOLOGY
卷 48, 期 3, 页码 964-971出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fct.2010.01.007
关键词
Antibacterial properties; Antioxidant activities; Solanum nigrum; Leonotis leonorus; Nutritional value
资金
- National Research Foundation (NRF) of South Africa
The nutritional, phytochemical, antioxidant and antibacterial activities of the acetone, methanol and water extracts of the leaves of Solarium nigrum and Leonotis leonorus were investigated using standard analytical methods in order to assess the numerous potential of the leaves of these plants. The proximate analysis showed the that the leaves of the two plants were rich in moisture content, ash content, crude protein, crude lipid. crude fibre and carbohydrate. Elemental analysis in mg/100g (DW) indicated that the leaves contained sodium, potassium, calcium. magnesium, iron, zinc, phosphorus, copper, manganese, and nitrogen. The chemical composition in mg/100 g (DW) for alkaloid, saponins, and phytate were moderate. The plants were also rich in polyphenols and had good antioxidant activities. The different extracts of the plants had activities against some of the organisms used in this study. Comparing the nutrient and chemical constituents with recommended dietary allowance (RDA) values, the results reveal that the leaves contain an appreciable amount of nutrients, minerals, and phytochemicals and low levels of toxicants. Published by Elsevier Ltd.
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