Statistical analysis using paired sample t-test showed that the
concentrations of lead (Table 2) and cadmium (Table 3) in skipjack
were significantly different (p < 0.05) before and after cooking and
sterilisation by autoclave. Significant differences (p < 0.05) were
also found in the lead (Table 2) and cadmium (Table 3) concentrations
of yellowfin before and after defrosting, cooking, and
sterilisation