Abstract

TRIVINO PINEDA, Jairo Smith; CONTRERAS GARCIA, José; AMOROCHO CRUZ, Claudia Milena  and  SANCHEZ RAMIREZ, Javier Eduardo. Obtaining Bioproducts from Residues of the Wet Benefit of Coffee (Pulp). Rev. colomb. biotecnol [online]. 2021, vol.23, n.2, pp.6-14.  Epub Feb 17, 2022. ISSN 0123-3475.  https://doi.org/10.15446/rev.colomb.biote.v23n2.90551.

This work presents the results obtained at a laboratory scale for the use of coffee pulp (residues) in the wet milling process applying the concept of biorefinery. The results showed that it is possible to treat this residue through fermentative processes and obtain bioethanol through simple distillation with an alcohol content between 3.85% to 6.90% for each 250ml of biomass with a solid-liquid ratio of 4 to 1 to environmental conditions. It was observed in all the tests that the fermentation time and the initial structure of the residue are important variables since they influence the yield obtained in terms of produced alcohol. This work is part of a preliminary study for the implementation of the biorefinery concept to the residues generated in the wet coffee mill. The search of alternatives that allow the use of coffee residues is a current problem. These residues, when not treated, are generally dumped into water sources and sometimes used as agricultural amendments in crops, which can cause serious contamination problems. For this reason, it is necessary to carry out research in this field for its treatment or comprehensive use.

Keywords : biorefinery; bioethanol; coffee; pulp; waste.

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