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Figure 2: Determination of carbonyl content in colon and liver tissue of mice treated with azoxymethane (AOM), Spirulina maxima polyphenol–free sample (PFS) and protein hydrolysate of Spirulina maxima polyphenol–free sample (PHPFS). Each bar corresponds to the mean ±SDM of five mice per group,^{a} statistically significant difference with respect to the control value, and ^{b} with respect to the AOM treated group. One way ANOVA and Student–Newman–Keuls tests, P< 0.05 
