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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/106981
Title: 
Glucose and Fructose Production by Saccharomyces cerevisiaeInvertase Immobilized on MANAE-Agarose Support
Author(s): 
Institution: 
  • Universidade Estadual Paulista (UNESP)
  • Universidade Federal do Triângulo Mineiro (UFTM)
ISSN: 
  • 1808-4532
  • 2179-443X
Abstract: 
  • Produção de glicose e frutose por invertase de Saccharomyces cerevisiae imobilizada em suporte MANAE-Agarose Invertase de Saccharomyces cerevisiaefoi imobilizada em agarose ativada com diferentes grupos (glioxil, MANAE ou glutaraldeído) e suportes epóxidos comerciais (Eupergit e Sepabeads). Derivados de invertase ativos e estabilizados foram produzidos pela adsorção da enzima em suportes MANAE-agarose, MANAE-agarose tratado com glutaraldeído e glutaraldeído-agarose. Em pH 5,0 estes derivados retiveram total atividade até 24h a 40 ºC e 50 ºC. Quando os ensaios foram a 40 °C e 50 °C com o pH alterado para 7,0, o derivado invertase-MANAE-agarose tratado com glutaraldeído apresentou 80% da atividade inicial. As atividades recuperadas dos derivados foram 73,5%, 44,4% e 36,8%, respectivamente para MANAE, MANAE tratado com glutaraldeído e glutaraldeído. Essas três preparações foram empregadas com sucesso em 3 ciclos de hidrólise da sacarose para produzir glicose e frutose.
  • Invertase from Saccharomyces cerevisiaewas immobilized on agarose beads,activated with various groups (glyoxyl, MANAE or glutaraldehyde),and on some commercial epoxy supports (Eupergit and Sepabeads). Very active and stable invertase derivatives were produced by the adsorption of the enzyme on MANAE-agarose, MANAE-agarose treated with glutaraldhyde and glutaraldehyde-agarose supports. At pH 5.0, these derivatives retained full activity after 24h at 40 ºC and 50 ºC. When assayed at 40 °C and 50 °C,with the pH adjusted to 7.0, the invertase-MANAE-agarose derivative treated with glutaraldehyde retained 80% of the initial activity. Recovered activities of the derivatives produced with MANAE, MANAE treated with glutaraldehyde and glutaraldehyde alone were 73.5%, 44.4% and 36.8%, respectively. These three preparations were successfully employed to produce glucose and fructose in 3 cycles of sucrose hydrolysis.
Issue Date: 
19-Jun-2013
Citation: 
Revista de Ciências Farmacêuticas Básica e Aplicada, v. 34, n. 2, 2013, p. 169-175.
Publisher: 
Universidade Estadual Paulista (UNESP)
Keywords: 
  • Glucose and fructose production
  • enzyme immobilization
  • invertase
  • Saccharomyces cerevisiae
Source: 
http://serv-bib.fcfar.unesp.br/seer/index.php/Cien_Farm/article/view/2570
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/106981
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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