ASSESSMENT OF PESTICIDE AND HEAVY METAL RESIDUE IN TWO VARIETIES OF BEANS SEED FROM AGO – IWOYE MARKET, OGUN STATE, NIGERIA.

Abstract

Beans (Phaseolus Vulgaris) are one of the staple foods in Nigeria, in order to ensure food safety, foreign matter, and contaminants need to be monitored to be within the acceptable safe limit. Two varieties that are mostly consumed- Honey beans (Oloyin) and Brown beans (Olotu) were obtained from Ago-Iwoye market, Ogun state, southwest Nigeria. Heavy metals and Organochlorine pesticide analyses were carried out on them. The concentration of Pb and Cd ranged from BDL to 0.060 mg/kg and 0.010 to 0.040 mg/kg respectively, which is within the safe limit. However, it was observed that Fe content in Olotu beans was 0.278 mg/kg which is higher than the acceptable safe limit. Organochlorine Pesticides residue indicates the presence of Endrin Ketone with 15.740 mg/kg and 19.820 mg/kg and o,p ‘-DDT  range of BDL – 0.030 mg/kg for both beans respectively.