Abstract:
The objectives of this research was to assess the concentration of some
selected heavy metals (Fe, Zn, Mn, Co) and the proximate nutritional composition
(moisture, ash, fat, fiber, protein and carbohydrate) of wheat. The samples were
purchased from local farmers at Segenet, Kusaye and Mangudo kebele in Moretna Jiru
district. The wheat sample were cleaned of foreign materials by washing it with distilled
water and then dried, powdered and sieved. The wheat samples were packaged in plastic
containers prior to analyses. The samples were digested and analyzed for their level of
Fe, Zn Co & Mn by using ICP-OES and their proximate nutritional compositions by using
AOAC methods (AOAC,2000). The results showed that the specific amount of metals for
SW wheat 65.653mg/L,9.669mg/L,1.506mg/L, and 0.111mg/L to Fe, Zn, Mn, & Co
respectively; for KW wheat <0.013mg/L to Fe and Zn, 0.021mg/L and 0.024mg/L to Mn
and Co respectively; and for MW wheat <0.013mg/L to Fe and Zn, 0.021mg/L and
0.024mg/L to Mn and Co respectively. In proximate compositions; the moisture content
of SW>KW>MW; the ash content of SW>KW>MW; the fat content of MW>SW>KW; the
crude fiber content of; the crude protein content of MW>SW>KW and the carbohydrate
content of KW>SW>MW.
