Multi-frequency multimode modulated technology as a clean, fast, and sustainable process to recover antioxidants from a coffee by-product

@inproceedings{Puga2017MultifrequencyMM,
  title={Multi-frequency multimode modulated technology as a clean, fast, and sustainable process to recover antioxidants from a coffee by-product},
  author={H{\'e}lder Puga and Rita C. Alves and Anabela S.G. Costa and Ana F. Vinha and Maria Beatriz P.P. Oliveira},
  year={2017}
}
Abstract Coffee chaff is a major coffee roasting by-product that could be valued as a source of antioxidants. In the present work, we compared classic, but optimized, solid-liquid extraction conditions with a new concept, namely, the Multi-frequency Multimode Modulated (MMM) vibration technique. The extracts obtained by both methods were analysed and compared in relation to several parameters, namely, phenolics profile (by HPLC/DAD), 5-caffeoylquinic acid content, total phenolics content, and… CONTINUE READING