SOD
(U/mg protein)
 CAT (µmol H2O2 consumed/ (min·mg protein))  Gln-px (µmol GSH consumed/ (min·mg protein)  Gln reduc
(U/mg protein)
 GST
(U/mg protein)
Controls 12.66 ± 0.21 2.26 ± 0.24 10.11 ± 0.58 60.09 ± 4.54 0.71 ± 0.090
Contaminated 12.03 ± 0.31 (0.013)* 1.79 ± 0.05 (0.005)* 9.12 ± 0.37
(0.019)*
41.28 ± 4.06
(0.010)*
0.25 ± 0.085
(0.008)*
Uncontaminated 12.59 ± 0.37 (0.518) 2.15 ± 0.08
(0.418)
9.57 ± 0.19
(0.332)
58.69 ± 6.72
(0.282)
0.74 ± 0.067
(0.427)
F-value 94.523 34.722 110.950 89.53 104.69
P-value  0.022≠ 0.010≠ 0.009≠ 0.009≠ 0.003≠
Results are expressed as mean ± standard error of mean. *p is significant when compared with control using Student‘t’ test. ≠p is significant using ANOVA. Abbreviations: SOD-superoxide dismutase; CAT- catalase; Gln-Per- glutathione peroxidase; Gln Red- glutathione reductase; GST- glutathione S transferase.
Table 2: Serum activities of antioxidant enzymes of rats fed phosphide residue contaminated and uncontaminated cowpea.