Effect of μmax of Leuconostoc mesenteroides strains in simulated fermentations

Fermentations are biochemical processes in which bacteria transform substrates into products and metabolites of commercial value. Lactic acid bacteria (LAB) are microorganisms that produce lactic acid from fructose and glucose; however, when cultured in sucrose medium, the main product is dextran. T...

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Detalhes bibliográficos
Autor: Díaz-Montes, Elsa
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2023
País:México
Recursos:UNIVERSIDAD AUTÓNOMA DEL ESTADO DE HIDALGO
Repositório:PÄDI Boletín Científico de Ciencias Básicas e Ingeniería del ICBI
Idioma:espanhol
OAI Identifier:oai:repository.uaeh.edu.mx:article/10035
Acesso em linha:https://repository.uaeh.edu.mx/revistas/index.php/icbi/article/view/10035
Access Level:Acceso aberto
Palavra-chave:Simulation
Sucrose
Dextran
leuconostoc
mesenteroides
growth
kinetcs
Simulación
Sacarosa
Dextrano
cinéticas
crecimiento
Descrição
Resumo:Fermentations are biochemical processes in which bacteria transform substrates into products and metabolites of commercial value. Lactic acid bacteria (LAB) are microorganisms that produce lactic acid from fructose and glucose; however, when cultured in sucrose medium, the main product is dextran. This exopolysaccharide has important gelling, thickening, and rheological properties for the food and medical area. As in all fermentative processes, dextran production is affected by environmental conditions such as pH, temperature, and substrate, as well as the producing strain. Therefore, the aim of the work was to predict the effect of the μmax of thirteen Leuconostoc mesenteroides strains on their cell growth, substrate consumption, and dextran production in fermentative processes. The results showed that the simulation is a valuable tool to visualize kinetic behaviors and to be able to find and select the optimal parameters to execute real fermentations with successful results.