The anti-proliferative activity of jaboticaba peel extract (August–October sample) on colorectal cancer cell lines. Seeding: 10,000 cells per well. Extract concentrations: 1/control (0), 2 (0.025), 3 (0.05), 4 (0.1), 5 (0.5), 6 (1), and 7 (2 mg/mL). Cell death/survival was measured by the MTT assay. Data are represented by mean ± standard deviation (SD). One-way ANOVA followed by Tukey; the asterisk symbol (*) indicates statistical difference (p < 0.05) (the jaboticaba treatments were compared to the control concentration). (A) Survival of Caco-2 cells after exposure for 24 or 48 h of jaboticaba peel extract. (B) The survival of HT29 and HT29-MTX cells after exposure for 24 h of jaboticaba peel extract.