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Journal of Biological Sciences
Year: 2020  |  Volume: 20  |  Issue: 3  |  Page No.: 112 - 115

Proximate Composition and Aflatoxin Levels in Some Selected Grain Crops Sold in Taraba and Benue States, Nigeria

Kayode A. Arowora, Folasade B. Oluwabamiwo, Chinedu Imo, Ayobami J. Kukoyi, Kenneth C. Ugwuoke and Victor O. Eneji    

Abstract: Background and Objective: Crops sold in Nigeria has a great impact on health, different types of crops have varying nutritional values. Therefore, this study evaluated the proximate composition and total aflatoxins levels in some selected grain crops in Taraba and Benue states of Nigeria. The crops evaluated were maize, rice, groundnut and acha. Materials and Methods: Rice sample was procured from Vandeikya Local Government Area of Benue state, while other samples were purchased from Wukari market in Taraba state, Nigeria. Proximate compositions of the samples were determined by standard methods of the Association of Official Analytical Chemists, while total aflatoxins levels were carried out using the method of Enzyme Linked Immunosorbent Assay. Gross energy composition was determined using atwater factor. Means and the standard deviation of the results obtained were determined. Results: The mean moisture content determined for the samples were within safe level for storage with the range (9.00-10.25%), while the following ranges were determined for the following parameters: crude protein (7.58-25.83%), crude fibre (0.26-5.41%), ether extract (0.18-49.205%), ash (0.49-2.84%) and nitrogen free extract (17.66-88.36%). Aflatoxins were not detected in the samples except acha that had the value of 0.5 ppb. Gross energy compositions of the crops were between 395.40 and 614.01 kcal/100 g. Conclusion: This study has revealed the variation in nutritional composition of grain crops analysed. Aflatoxins were not detected in the grain crops analysed with the exception of acha that had 0.50 ppb which is less than the EU recommended levels for ready to eat products.

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