Peanut history and it's phytochemicals.
- Basic Botanical Data of Peanut.
- Peanuts:Arachis hypogaea L.
- Whole Plant Description of Peanut.
- Distribution of Arachis hypogaea L,Peanut,groundnut:Eco-geographic Distribution.
- Taxonomy of genus Arachis.
- History and Origin of Arachis hypogaea L,Peanut,groundnut.
- Peanut: Phytochemicals and nutrients.
- Uses of Arachis hypogaea L.Peanut,groundnut.
- Folk Medicine and Medicinal Uses of Peanut.
- Cooking Peanut.
- Optimization of extraction methods for identification of selected phytochemicals in peanuts.Arachis hypogaea L.
- Research Update:Peanuts.Arachis hypogaea L.
Optimization of extraction methods for identification of selected phytochemicals in peanuts.Arachis hypogaea L.:
Peanut (Arachis hypogaea L.) is a highly nutritive oil seed from the plant family Leguminosae. Additionally, it is reported to contain non-nutritive bioactive phytochemicals, particularly, isoflavones. Peanut consumption is associated with reduced risks of cardiovascular disease and cancer occurrence. Although complete elucidation of their mechanisms of action have not yet been accomplished, it was suggested that the health benefits from peanut consumption maybe due to the presence of these non-nutritive but bioactive compounds. There are limited data regarding the approximate levels of these compounds in peanuts and peanut products. Further, there are variations in methods of extraction and quantification of these compounds from peanuts.
Our objective was to optimize current method for identifying and quantifying specific isoflavones in peanuts.
Several modified hot and cold extraction methods, based on previously reported methods, were used to extract isoflavones from peanuts. HPLC (C18 column) was then used for the identification and estimation of levels of the isoflavones daidzein, genistein, biochanin A (at A285) and resveratrol (at A306) in the peanut extracts.
The results showed that daidzein was undetected in both hot and cold ethanol extracts. Genistein was present in both extracts but at a slightly higher level (0.29 ?0.02mg/100g dwb) in the hot extract compared to the cold extract (0.20 ?0.00mg/100g dwb). Biochanin A was undetected in the cold extract but was present in the hot extract (0.24 ?0.14mg/100g dwb) while resveratrol was undetected in the hot extract but present in the cold extract (1.18 ?0.19mg/100g dwb).
Optimal methods that extract different phytochemicals in peanuts and peanut products will facilitate obtaining the phytochemical composition of peanuts and thus furnish nutrition scientists with information necessary for studies regarding the establishment of peanut consumption levels necessary for improving health status and reducing disease risk.
- 1.Peanut history and it's phytochemicals.
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