Effect of tween 40 and ethanol on the secretion, structure and antioxidant activities of exopolysaccharides from Inonotus rickii.
An Acad Bras Cienc
; 92 Suppl 2: e20180838, 2020.
Article
em En
| MEDLINE
| ID: mdl-32725044
ABSTRACT
In this study, the effects of Tween 40 and ethanol supplementation on the secretion, structure and antioxidant activities of exopolysaccharide (EPS) from Inonotus rickii were investigated. It was observed that Tween 40 and ethanol displayed a stimulatory effect on EPS secretion. The EPSs obtained by the addition of Tween 40 (EPS-T), ethanol (EPS-E) and control (EPS-C) were purified by Sepharose CL-6B gel chromatography and molecular weights of EPS-T, EPS-E and EPS-C were estimated to be 22.1, 30.0, and 40.5 kDa, respectively. Monosaccharide composition analysis indicated that EPS-T, EPS-E and EPS-C were mainly composed of mannose and glucose. Furthermore, EPS-E exhibited better OH⢠and DPPH scavenging activities than those of EPS-C and EPS-T, which might be associated with its molecular characterization.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polissacarídeos Bacterianos
/
Polissorbatos
/
Etanol
/
Antioxidantes
Idioma:
En
Revista:
An Acad Bras Cienc
Ano de publicação:
2020
Tipo de documento:
Article