Determination of Some Heavy Metals in Kidney, Liver and Muscle of Domestic Pig (Sus scrofa domesticus) in Guyuk Metropolis, Adamawa State, Nigeria

Overview

Buba and colleagues measured lead, iron, cadmium, nickel, and copper in domestic pig kidney, liver, and muscle samples purchased from ten commercial sellers in Guyuk Metropolis, Adamawa State, Nigeria. The paper reports tissue means in mg/g after drying, ashing, acid digestion, and AAS analysis. The units and tissue labels are preserved as printed; no conversion to mg/kg was performed.

Key numbers

• Sample frame: the Sample Collection section states that domestic pig kidney, liver, and muscle were bought from ten (10) commercial sellers in Guyuk Metropolis, Adamawa State, Nigeria.
• Table 1, kidney of both sexes (mg/g): lead (Pb) 0.076±0.000, Fe 0.943±0.001, cadmium (Cd) 0.022±0.001, nickel (Ni) 0.010±0.000, Cu 0.255±0.001.
• Table 1, liver of both sexes (mg/g): Pb 0.095±0.000, Fe 8.165±0.001, Cd 0.042±0.001, Ni 0.022±0.001, Cu 0.086±0.001.
• Table 1, muscle of both sexes (mg/g): Pb 0.085±0.000, Fe 3.778±0.001, Cd 0.034±0.001, Ni 0.011±0.000, Cu 0.054±0.001.
• Table 2, male domestic pigs (mg/g): kidney Pb 0.072±0.000, Fe 1.543±0.001, Cd 0.024±0.001, Ni 0.010±0.000, Cu 0.253±0.001; liver Pb 0.085±0.003, Fe 7.665±0.001, Cd 0.032±0.001, Ni 0.012±0.001, Cu 0.066±0.003; muscle Pb 0.073±0.002, Fe 5.474±0.001, Cd 0.034±0.002, Ni 0.014±0.001, Cu 0.052±0.001.
• Table 3, female domestic pigs (mg/g): kidney Pb 0.076±0.003, Fe 2.943±0.001, Cd 0.022±0.001, Ni 0.010±0.000, Cu 0.255±0.001; liver Pb 0.095±0.001, Fe 8.165±0.002, Cd 0.042±0.002, Ni 0.022±0.001, Cu 0.086±0.003; muscle Pb 0.085±0.003, Fe 5.778±0.002, Cd 0.034±0.002, Ni 0.011±0.000, Cu 0.054±0.001.
• Table 4, sex-summary means (mg/g): male Pb 0.077±0.002, Fe 4.894±0.001, Cd 0.030±0.004, Ni 0.012±0.003, Cu 0.124±0.001; female Pb 0.085±0.003, Fe 5.629±0.001, Cd 0.033±0.001, Ni 0.014±0.001, Cu 0.132±0.001.

Methods (brief)

The authors collected pork kidney, liver, and muscle, homogenized each organ separately, weighed 10g fresh homogenized sample, dried it at 105°C, ashed the ground sample in a muffle furnace up to 550 oC, digested it with a tri-acid mixture reported as (HNO3: HCO4: H2SO4) at 10:4:1, filtered through Whatman 541, diluted with 25mls distilled water, and analyzed Pb, Fe, Cu, Ni, and Cd with a Buck Scientific 230A Atomic Absorption Spectrophotometer. Data were presented as mean and standard error mean and analyzed by ANOVA/Duncan’s multiple comparison test and Student t-test in SPSS version 20.

Related evidence

• Lead
• Iron
• Cadmium
• Nickel
• Copper
• Meat and poultry
• Organ Meats (Kidney and Liver)
• Pork

Update history

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