Sequential microwave superheated water extraction of mannans from spent coffee grounds.

@article{Passos2014SequentialMS,
  title={Sequential microwave superheated water extraction of mannans from spent coffee grounds.},
  author={Cl{\'a}udia P Passos and Ana S P Moreira and Maria do Ros{\'a}rio Domingues and Dmitry V. Evtuguin and Manuel A. Coimbra},
  journal={Carbohydrate polymers},
  year={2014},
  volume={103},
  pages={
          333-8
        }
}
The feasibility of using sequential microwave superheated water extraction (MAE) for the recovery of mannans from spent coffee grounds (SCG) was studied. Due to the high contents of mannose still present in the SCG residue left after two consecutive MAE, the unextracted material was re-suspended in water and submitted to a third microwave irradiation (MAE3) at 200 °C for 3 min. With MAE3, mannose recovery achieved 48%, increasing to 56% by MAE4, and reaching a maximum of 69% with MAE5… Expand
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