A green approach for alginate extraction from Sargassum muticum brown seaweed using ultrasound-assisted technique.
Int J Biol Macromol
; 124: 451-459, 2019 Mar 01.
Article
em En
| MEDLINE
| ID: mdl-30496857
ABSTRACT
Ultrasound assisted aqueous extraction of alginate from Sargassum muticum was proposed to minimize the use of chemicals, high temperatures and prolonged times, with comparable extraction yields to conventional acid/alkali procedures. The alginate, precipitated from the liquors obtained after ultrasound assisted extraction of fucoidan and phlorotannin fractions, and converted to alginic acid sodium salt by a green treatment was characterized by FTIR-ATR, 1H NMR, HPSEC, MALDI-TOF, rheology and citotoxitity. A clear influence of the sonication time was observed on the alginate molar mass, block structure, thermo-rheological and tumoral cell growth inhibition features. All tested hydrogels featured stable and thermo-reversible characteristics.
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Base de dados:
MEDLINE
Assunto principal:
Alga Marinha
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Hidrogéis
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Sargassum
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Alginatos
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Química Verde
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Extração Líquido-Líquido
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article