Keywords
microalgae
phenolic compounds
antioxidants
antifungal activity
How to Cite
Abstract
With the objective to evaluate the phenolic contents, and the antioxidant and antifungal activities of multimixtures formulated with Spirulina platensis, four multimixtures were prepared with rice bran or wheat bran, being two containing the Spirulina platensis, and sunflower seeds were added into other two formulations. The phenolic contents were estimated by Folin-Ciocalteau technique; antioxidant activity was evaluated through free radical DPPH inhibition test, and the ability to inhibit fungus by means of Aspergillus orizae growth halo inhibition assay. The total phenolic contents and antioxidant activity in rice bran-containing multimixtures were on average 0.6 times higher, than those showed by wheat bran-containing multimixtures. The multimixtures formulated with 1% of microalgae showed no significant difference (α = 0.05) as for phenolic contents, when compared with the standard multimixture. The multimixture containing rice bran and Spirulina platensis showed higher antioxidant activity in comparison to the standard multimistura, unlike the result observed in wheat bran-containing multimixtures, which indicates that the combination of rice bran with microalgae is more effective than with wheat bran for preserving from oxidative processes. Regarding to antifungal activity, the multimixtures with wheat bran demonstrated, on average, 28% of inhibition, when compared to 21% of bran rice- based multimixtures.References
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