Contaminating bacteria in the ethyl alcohol production process

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Carlos Rodrigo Jácome-Pilco
Cesar Orlando Azogue-Poaquiza
Byron Alexanders Ramos-Escobar
Carlos Sebastián Escobar-Barragán
Isidro Favian Bayas-Morejón

Abstract

In recent years, interest has increased in the interactions and population dynamics between lactic acid bacteria and yeasts in the fermentation of alcoholic beverages, which influence the production of ethanol and volatile compounds depending on the quality of alcoholic beverages. Most of the research has focused on these interactions in fermentation processes, for example red, white and other fermented wines. A wide variety of microorganisms have been found to be present in the enzymatic processes of tehuino and mezcal. In this study, 17 lactic acid bacteria were analyzed for cell growth and resistance to various ethanol concentrations and osmolarity. The selected bacteria were then used in various combinations of bacterial yeast to assess the growth of two different species using CFU colony forming units.

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How to Cite
Jácome-Pilco, C., Azogue-Poaquiza, C. ., Ramos-Escobar, B., Escobar-Barragán, C., & Bayas-Morejón , I. . (2023). Contaminating bacteria in the ethyl alcohol production process. 593 Digital Publisher CEIT, 8(3), 58-71. https://doi.org/10.33386/593dp.2023.3.1701
Section
Artículos de revisión
Author Biographies

Carlos Rodrigo Jácome-Pilco, Universidad Estatal de Bolívar - Ecuador

https://orcid.org/0000-0002-9713-0228

Doctor of Science (Ph.D.) in the specialty of Biotechnology (CINVESTAV-IPN, Mexico); 22 years as professor-researcher at the State University of Bolívar, in ​​Agro-industrial Biotechnology. Author and co-author of several scientific articles and participant in different research projects financed with international and national funds. 

Cesar Orlando Azogue-Poaquiza, Universidad Estatal de Bolivar - Ecuador

https://orcid.org/my-orcid?orcid=0000-0002-3809-5303

Student of the State University of Bolívar, agro-industrial career, directed to the study of alcohol production processes, completed by internal training at the faculty, on issues related to bacterial behavior and its incidence in ethyl alcohol. 

Byron Alexanders Ramos-Escobar, Universidad Estatal de Bolívar - Ecuador

https://orcid.org/my-orcid?orcid=0000-0002-5535-9681

Student of the State University of Bolívar, agro-industrial career, directed to the study of alcohol production processes, completed by internal training at the faculty, on issues related to bacterial behavior and its incidence in ethyl alcohol. 

Carlos Sebastián Escobar-Barragán, Universidad Estatal de Bolívar - Ecuador

https://orcid.org/0000-0002-4136-456X

Student of the State University of Bolívar, agro-industrial career, directed to the study of alcohol production processes, completed by internal training at the faculty, on issues related to bacterial behavior and its incidence in ethyl alcohol. 

Isidro Favian Bayas-Morejón , Universidad Estatal de Bolívar - Ecuador

https://orcid.org/0000-0003-2920-7155

Professor (Research Department, Faculty of Agricultural Sciences) 

PhD in Biotechnology (Biotechnology) 

Master's Degree in Occupational Risk Prevention (Administrative CC.) 

Agroindustrial Engineer (Agricultural CC.) 

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