Production and Characterization of a Distilled Alcoholic Beverage Obtained by Fermentation of Banana Waste (Musa cavendishii) from Selected Yeast

  • de Matos M
  • Bianchi Pedroni Medeiros A
  • et al.
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Abstract

Banana is one of the most important fruits in the Brazilian diet and is mainly consumed naturally. Losses from crop to final consumer are high and estimated in about 30%. The aim of this work was to elaborate a distilled alcoholic beverage from discarded banana and to compare with commercial trademarks. Initially, yeast strains were isolated from banana fruit and characterized by their production of volatile aroma compounds. The highest aroma-producing yeast isolate was identified by ITS-rRNA gene sequencing as Pichia kluyveri. Pasteurized banana pulp and peel was fermented by the selected P. kluyveri at approximately 107 cells/mL. The sugars were converted quickly, and a high ethanol concentration (413 mg/L) was achieved after 24 h of fermentation. The fermented banana must was distilled in a Femel Alambic, and the head, heart and tail fractions were collected. The banana brandy produced had highest concentration of volatile compounds compared to trademarks, such as isoamyl acetate (13.5 mg/L), ethyl hexanoate (0.8 mg/L) and others. The results showed that whole banana must could be a good substrate for fermentation and distillation, and the sensory analysis performed revealed that the produced beverage had good acceptance by the tasters. This study demonstrates the potential of banana as a possible alternative to reduce waste and increase income to farmers.

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de Matos, M., Bianchi Pedroni Medeiros, A., de Melo Pereira, G., & Thomaz Soccol, V. (2017). Production and Characterization of a Distilled Alcoholic Beverage Obtained by Fermentation of Banana Waste (Musa cavendishii) from Selected Yeast. Fermentation, 3(4), 62. https://doi.org/10.3390/fermentation3040062

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