Abstract
Cashew nut (Anacardium L.), Red beans (Vignaaguiculata L.), Baobab seed ( Adanosiadigitata L.), Soya bean (Glycine max L.), Tiger nut (Cyperusesculentus L.), White bambara nut (Vignasubsterranea L.), Kampala groundnut (Arachishypogaea L.), white bean (Vignaaguiculata L.), Sorghum (Sorghum bicolor L.) and Maize (Zee mays L.) were analyzed for the presence of hydrogen cyanide in the form of cyanogenicglucoside. Qualitative analysis showed that all the samples studied contain hydrogen cyanide in form of cyanogenicglucosides. FTIR analysis also shows that all the samples have nitrile CN functional group within the range of 2280-2240 cm -1 absorption band, confirming the presence of the cyanide in the samples. Quantitative analysis was carried out on both distill water and methanol cyanide extracts using UV-Vis spectrophotometer. The least and highest concentration obtained for the distill water extract were in baobab seed (130±1 mg/kg) and cashew nut (300±1.58 mg/kg), while methanol extract were in tiger nut (210±1 mg/kg) and cashew nut (370±1 mg/kg) respectively.The melting points of the hydrazones in all the samples indicate thatbenzaldehyde was present asaglycone. Aprecautionary detoxification is therefore imperative.
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