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Studied samples for microfibrillated cellulose (MFC) films containing yerba mate extract blended during (D) the defibrillation process and after (A), (a) FTIR spectra, where dashed lines indicate the most important region and the arrow is an increased peak found after the extract is blended. (b) YM extract release and best-fit using Korsmeyer−Peppas, (c) ABTS and DPPH antioxidant scavenging activity and (d) bacteria growth inhibition of 25 mg samples containing yerba mate extract.
