Use of antimicrobials for contamination control during ethanolic fermentation

Autores

  • Leonardo Lucas Madaleno Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani
  • Guilherme Deomedesse Minari FCAV/Unesp Jaboticabal
  • Flávia Roberta de Annunzio Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani
  • Márcio Roberto de Carvalho Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani
  • Gino Roda Bossa Júnior Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani
  • Deise Chaves Sales Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani
  • Mariana Carina Frigieri Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani

DOI:

https://doi.org/10.15361/1984-5529.2016v44n2p226-234

Resumo

This study aim to compare the action of antimicrobials: hop extract, oregano essential oil (OEO) and chlorine dioxide during the fermentation process. For this purpose, three studies have been conducted. In the first two studies, control treatment, Kamoran® (3 mg L-1), oregano oil (0.5%) and hop extract (10 mg L-1) were used. In the third experiment, hop extract was replaced by chlorine dioxide (0.15 mg L-1) and oregano concentration was also increased to 1%. The quality of mash and wine obtained was evaluated. During the fermentation process, feasibility analyses and initial and final contamination analyses were carried out. It was verified that OEO has no antimicrobial effect, on the other hand, it has properties that can be antifoaming and/or dispersant. Hop extract reduced the final contamination of the fermentation of the mash of sugarcane juice and molasses. The antimicrobial treatments used did not reduce the viability of yeast cells.

 

Additional keywords: biocides; chlorine dioxide; hop; Kamoran®; oregano oil.

Biografia do Autor

Leonardo Lucas Madaleno, Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani

Tecnologia em Biocombustíveis

Disciplinas de Produção de açúcar e Produção de bioetanol

Guilherme Deomedesse Minari, FCAV/Unesp Jaboticabal

Departamento de Tecnologia

Flávia Roberta de Annunzio, Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani

Tecnologia em Biocombustíveis

Márcio Roberto de Carvalho, Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani

Tecnologia em Biocombustíveis

Gino Roda Bossa Júnior, Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani

Tecnologia em Biocombustíveis

Deise Chaves Sales, Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani

Tecnologia em Biocombustíveis

Mariana Carina Frigieri, Faculdade de Tecnologia de Jaboticabal/Fatec Nilo de Stéfani

Tecnologia em Biocombustíveis

Disciplina de Microbiologia

Publicado

30/03/2016

Edição

Seção

Microbiologia - Microbiology