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Provedor de dados:  Biological Sciences
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
Direitos:  Direitos autorais 2019 Acta Scientiarum. Biological Sciences

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