yerba mate

Contaminant metals represent a significant threat to global water systems, with severe implications for human health. Treatment technologies utilizing porous materials embedded with nanomaterials offer a promising approach for the effective removal of these contaminants. In this study, charcoal was produced from yerba mate sticks, a form of industrial waste.

In this work, a response surface methodology (RSM) was used to attain optimal conditions for polyphenols extraction from Yerba Mate (YM, South-America infusion) using water as solvent under ultrasound. The following parameters were varied: mass of YM/volume of water (YM/W), pH, temperature, and time. This study helps to developing an eco-friendly and cost-effective experimental design, reducing the production of wastes, and using a very fast water-based method for the extraction.