Determination Of Benzo[A]Pyrene Levels In Cashew Nut Shells And Kernels Processed Using Different Traditional Methods And Fuel Sources From Kilifi County, Kenya
Volume 5 - Issue 10, October 2022 Edition
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Famau Jamil Mahdy, Jane Irungu Murungi, Alphonse Wafula Wanyonyi
Benzo[A]pyrene, Cashew nuts, Coconut, Mango, Pine.
The aim of this study was to determine BaP levels generated in cashew nut shell and kernel samples processed from two methods (roasting and sun-drying), roasted separately using different fuel sources namely: pine, mango and coconut husks and shells, when roasted for different durations using the same fuel source and the effect of the shell. In the roasted shell samples using different fuel sources, pine generated the highest BaP concentration (12.918±5.270µg/kg), followed by mango wood (5.842±2.307µg/kg) while coconut shell and husk mixture generated the least BaP (2.298±1.664µg/kg) in the cashew nut shell samples. The BaP concentrations were below the detection limit in all the 90 roasted cashew nut kernels samples. BaP levels were also below the detection limit in the 30 shell and 30 kernel samples (from 3 batches) processed through sun-drying method. BaP was not detected in all 36 roasted cashew nut kernel samples collected from the roadside vendors from the 3 towns. This could be attributed to the shell leading to 100% BaP reduction by preventing pyrolysis of the kernel and deposition of BaP by the smoke from the fuel source. The BaP non-detection in the kernel samples meant they were below the EU Maximum residual limit of 5µg/kg hence safe for human consumption.
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