Abstract

GUEVARA-BRAVO, CARLOS A; ACEVEDO-RUIZ, JOSÉ M  and  PELAEZ-JARAMILLO, CARLOS A. BIOREFINERY FROM BANANA REJECTED: INTEGRATED SYSTEM FOR ETHANOL, SINGLE CELL PROTEIN, BIOGAS AND COMPOST CO-PRODUCTION. Rev.Bio.Agro [online]. 2016, vol.14, n.1, pp.78-86. ISSN 1692-3561.  https://doi.org/10.18684/BSAA(14)78-86.

Ethanol, single cell protein, biogas and compost production from Uraba´s bananas rejected, was developed under a biorefinery concept. Green bananas were initially subjected to endogenous hydrolysis to break the polysaccharides, after the fermentable sugars were extracted to get a juice with a soluble solids content between 14-16 °Brix. Insoluble fraction was used to produce compost. The juices were fermented in order to get a ferment with alcohol content between 7-8 % v/v and additionally single cell protein (yeast). Ferment distillation produces a solution with 40-50% of ethanol, as a final product and stillage, which was employed for the production of biogas (3m3 biogas/m3stillage). This fuel can be used as energy source in the ferment distillation. Finally with results were realized estimates to determine the amount of products in a larger scale process.

Keywords : Biodegradation; Energy recovery; Green banana; Ethanol; Biogas.

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