Respiration in Azotobacter vinelandii and its relationship with the synthesis of biopolymers
Electron. j. biotechnol
; 48: 36-45, nov. 2020. ilus, tab
Artigo
em Inglês
| LILACS
| ID: biblio-1254948
Biblioteca responsável:
CL1.1
ABSTRACT
Azotobacter vinelandii is a gram-negative soil bacterium that produces two biopolymers of biotechnological interest, alginate and poly(3-hydroxybutyrate), and it has been widely studied because of its capability to fix nitrogen even in the presence of oxygen. This bacterium is characterized by its high respiration rates, which are almost 10-fold higher than those of Escherichia coli and are a disadvantage for fermentation processes. On the other hand, several works have demonstrated that adequate control of the oxygen supply in A. vinelandii cultivations determines the yields and physicochemical characteristics of alginate and poly(3-hydroxybutyrate). Here, we summarize a review of the characteristics of A. vinelandii related to its respiration systems, as well as some of the most important findings on the oxygen consumption rates as a function of the cultivation parameters and biopolymer production.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Respiração
/
Biopolímeros
/
Azotobacter vinelandii
Idioma:
Inglês
Revista:
Electron. j. biotechnol
Assunto da revista:
Biotecnologia
Ano de publicação:
2020
Tipo de documento:
Artigo
País de afiliação:
Chile
/
México
Instituição/País de afiliação:
Pontificia Universidad Católica de Valparaíso/CL
/
Universidad Autónoma del Estado de Morelos/MX
/
Universidad Nacional Autónoma de México/MX