Data/hora: 12/06/2024 15:40:40

Provedor de dados: | 3
País: | Brazil
Título: | Xanthan gum production by Xanthomonas axonopodis pv. mangiferaeindicae from glycerin of biodiesel in different media and addition of glucose
Autores: | Gondim, Tayssa Santos; Pereira, Roberto Guimarães; Fiaux, Sorele Batista.
Data: | 2019-04-16
Ano: | 2019
Palavras-chave: | Ciências biológicas; Bioprocessos residue; Biopolymer; Biotechnological process. Bioprocessos.
Resumo: | Biodiesel production has been increasing yearly in Brazil. A large amount of glycerin is generated in this process and needs a correct destination. One possible use of this glycerin in crude form is in biotechnological processes. Xanthan gum is a commercial gum used primarily in the pharmaceutical and food industries as thickener, emulsifier and stabilizer. It is synthetized by species of the bacterium Xanthomonas generally from glucose. However, current research shows that species of this bacterium have the capacity to grow and synthesize the gum using glycerin from biodiesel. The aim of this study was to produce xanthan gum using glycerin from biodiesel production in medium with different nitrogen content, named complex and simple media. The kinetics of fermentation in simple medium showed a two-fold increase in gum production (3.16 kg.m-3) compared to the one in complex medium (1.46 kg.m-3) after 120 hours. The gum generated in this study showed chemical and rheological characteristics of xanthan gum. Glucose supplementation did not show an increase in xanthan production but did increase the consistency index and the behavioral index of solutions of this gum.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43661

10.4025/actascibiolsci.v41i1.43661

Editor: | Universidade Estadual De Maringá

Relação:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43661/pdf

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/downloadSuppFile/43661/19558

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/downloadSuppFile/43661/19559

Formato: | application/pdf

Fonte:

Acta Scientiarum. Biological Sciences; v. 41 (2019): Publicação contínua; e43661

Acta Scientiarum. Biological Sciences; v. 41 (2019): Publicação contínua; e43661

1807-863X

1679-9283

Fonte:

Direitos autorais 2019 Acta Scientiarum. Biological Sciences

http://creativecommons.org/licenses/by/4.0