skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Polysaccharides of red alga Gracilaria intermedia: structure, antioxidant activity and rheological behavior

Polímeros, 2018-06, Vol.28 (2), p.178-186

This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 1678-5169 ;DOI: 10.1590/0104-1428.013116

Digital Resources/Online E-Resources

Citations Cited by
  • Title:
    Polysaccharides of red alga Gracilaria intermedia: structure, antioxidant activity and rheological behavior
  • Author: Castro, Joana Paula Lima de ; Costa, Luís Eduardo Castanheira ; Pinheiro, Maísa Pessoa ; Francisco, Thiago dos Santos ; Vasconcelos, Pedro Hermano Menezes de ; Funari, Lizandra Mistrello ; Daudt, Renata Moschini ; Santos, Gustavo Ramalho Cardoso dos ; Cardozo, Nilo Sérgio Medeiros ; Freitas, Ana Lúcia Ponte
  • Subjects: POLYMER SCIENCE
  • Is Part Of: Polímeros, 2018-06, Vol.28 (2), p.178-186
  • Description: Abstract A sulfated polysaccharide fraction from the red alga Gracilaria intermedia (PLS) was obtained by papain digestion (60 °C, 30 min). The extract was subjected to colorimetry and turbidimetry analysis, Fourier transform infrared (FTIR) spectroscopy, 1H, 13 C and 2D 1H COSY nuclear magnetic resonance (NMR) and gas chromatography/mass spectrometry analysis. Antioxidant activity tests were performed (chelation of ferrous ion, total antioxidant capacity, and scavenging of DPPH radicals); significant activity of the extract indicated that these polysaccharides may be used as non-synthetic antioxidants. The rheological behavior of aqueous polysaccharide solutions was studied at 25 ± 1 °C using steady-shear and dynamic oscillatory measurements. All the solutions analyzed showed pseudoplastic behavior and potential to act as a thickening agent, as proved through a preliminary comparison with a commercial product used for this application.
  • Publisher: Associação Brasileira de Polímeros
  • Language: Portuguese
  • Identifier: ISSN: 1678-5169
    DOI: 10.1590/0104-1428.013116
  • Source: SciELO
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait