Production of starch-polyester bio-support for lipases immobilization: synergistic action of itaconic acid and nanoclay.
Prep Biochem Biotechnol
; 51(6): 580-588, 2021.
Article
en En
| MEDLINE
| ID: mdl-33135968
The objective of the present work was to develop biodegradable polymeric films (starch-PBAT) as support for the immobilization of lipases using sodium montmorillonite (MMT) as a reinforcing agent (2% w/w) and itaconic acid (IA - 0.5-1.5% w/w) as a compatibilizing agent. The films were produced through a two steps blow-extrusion. The addition of MMT increased the tensile strength and Tg of the films, while the presence of IA made the films more flexible, reducing their Tg. Lipases from Burkholderia cepacia LTEB11 were immobilized in the films by the adsorption method. The ester yield (% of ethyl oleate synthesis) has shown best results (96%, 6 h) for immobilized enzyme in the MMT film and six cycles of reuse were carried out until a reduction of 50% in the catalytic activity of the enzyme.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Poliésteres
/
Almidón
/
Succinatos
/
Proteínas Bacterianas
/
Bentonita
/
Burkholderia cepacia
/
Enzimas Inmovilizadas
/
Lipasa
Idioma:
En
Revista:
Prep Biochem Biotechnol
Asunto de la revista:
BIOQUIMICA
/
BIOTECNOLOGIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Reino Unido