Physicochemical characterization of Gracilaria chouae sulfated polysaccharides and their antioxidant potential.
Int J Biol Macromol
; 134: 255-261, 2019 Aug 01.
Article
em En
| MEDLINE
| ID: mdl-31078595
ABSTRACT
A complete absence of the physicochemical characterization of Gracilaria chouae polysaccharides (GCP) and its corresponding bioactivities urged the need for this study. It was found that GCP is a heteropolysaccharide which exists in linear random coil conformation. It contained a sulfate content of 7.9% in addition to 52.63% total sugar content and 9.62% galacturonic acid. Galactose and 3,6-anhydrogalactose were found in a molar ratio of 1.00.6. Its setting and melting points were determined as 41.3 and 71.7⯰C, respectively, which makes it a suitable candidate for industrial processing where further heating is required and/or where the end-product needs to have extended shelf life in hot climate. GCP demonstrated 2,2-diphenyl-1-picrylhydrazyl, 2,2'-azino-bis and hydroxyl radical scavenging activity (36.86, 27.42 and 19.07% at 3â¯mg·ml-1). Moreover, the results also suggested its potential use as a prebiotic due to its perceived high fermentability.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polissacarídeos
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Sulfatos
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Gracilaria
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Fenômenos Químicos
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Antioxidantes
Idioma:
En
Revista:
Int J Biol Macromol
Ano de publicação:
2019
Tipo de documento:
Article