In Vitro and Ex Vivo Chemopreventive Action of Mauritia flexuosa Products

Figure 2

Effects of lyophilized fruits (pulp, peel, and endocarp) from Mauritia flexuosa (0.5, 1, 2, 4, and 8 mg/mL) on the removal of (a) 1,1-diphenyl-2-picrylhydrazyl (DPPH^∙), (b) 2,20-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS^∙+), (c) reducing potential (Fe³⁺/Fe²), (d) reactive substances to thiobarbituric acid [TBARS levels induced by 2,2′-azo-bis (2-methylpropionamidine]) dihydrochloride, AAPH), and (e) nitrite content (induced by sodium nitroprusside). Trolox (0.5 mg/mL) was used as positive standard. Results are expressed as mean ± standard error of measurement (SEM) from two independent experiments in triplicate. Negative control was treated with the solution used for diluting the tested substance. With exception of reducing potential, absorbance values were converted to inhibition () percentage of radicals: (%) = [(absorbance of negative control − absorbance of sample) × 100]/absorbance of negative control. compared to negative control by ANOVA followed by Student-Newman-Keuls test.

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