Films Based on Blends of Polyvinyl Alcohol and Microbial Hyaluronic Acid
Braz. arch. biol. technol
;
63: e20190386, 2020. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-1132204
ABSTRACT
Abstract The aims of this work were to produce hyaluronic acid (HA) by Streptococcus zooepidemicus ATCC 39920 in a low cost sugarcane molasses fermentation medium and to employ the produced HA to obtain films blends based on polyvinyl alcohol (PVA). The films were produced using solution casting method and they were characterized according to their microstructure, mechanical and barrier properties. HA was added in different concentrations (0, 5, 10 and 15% (w/w)), and glycerol was used as a plasticizer (25 g/100 g solids). All formulations resulted in easily manipulated films with good appearance. The addition of HA on PVA films increased their thermal stability, solubility, swelling index, water vapor permeability and elongation. Microbial HA sample combined with PVA showed to be a promising material to biomedical application, and an addition between 5 and 10% (w/w) was sufficient to improve PVA films properties.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Alcohol Polivinílico
/
Melaza
/
Streptococcus equi
/
Ácido Hialurónico
Límite:
Animales
Idioma:
Inglés
Revista:
Braz. arch. biol. technol
Asunto de la revista:
Biologia
Año:
2020
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
State University of Londrina/BR
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