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Purification and Biological Activities of Enzymatically Degraded Sargassum fusiforme Polysaccharides
- Source :
- Chemistrybiodiversity. 18(3)
- Publication Year :
- 2020
-
Abstract
- Enzymatic hydrolysate of the crude polysaccharide (SFP) extracted from Sargassum fusiforme was purified by column DEAE-52 and Sephadex G-100 to yield four components, namely, ESFP1, ESFP2, ESFP3 and ESFP4. These components were characterized by chemical composition assay, GC/MS, HPGPC, UV and FT-IR techniques. The in vitro antioxidant activities of the four purified fractions were investigated by measuring their radical scavenging activity and reducing power. The results suggested that all the four components possess good antioxidant activities. Among them, ESFP1 was found to possess the strongest 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and hydroxyl radical-scavenging activity, and the greatest ferric reducing power. The immunomodulatory effect of these four polysaccharides was demonstrated by their ability to promote proliferation, and to enhance both phagocytic activity and NO release in a macrophage RAW264.7 model. The results revealed that the bioactivities of the polysaccharides are related to their molecular weight, and the uronic acid and sulfate contents.
- Subjects :
- Lipopolysaccharides
Antioxidant
DPPH
medicine.medical_treatment
Bioengineering
Uronic acid
Polysaccharide
Nitric Oxide
01 natural sciences
Biochemistry
Hydrolysate
Antioxidants
chemistry.chemical_compound
Mice
Structure-Activity Relationship
Picrates
Polysaccharides
medicine
Animals
Molecular Biology
Cells, Cultured
Cell Proliferation
chemistry.chemical_classification
Chromatography
Dose-Response Relationship, Drug
Molecular Structure
010405 organic chemistry
Biphenyl Compounds
Sargassum
Stereoisomerism
General Chemistry
General Medicine
0104 chemical sciences
Molecular Weight
010404 medicinal & biomolecular chemistry
Enzyme
RAW 264.7 Cells
chemistry
Sephadex
Molecular Medicine
Ferric
medicine.drug
Subjects
Details
- ISSN :
- 16121880
- Volume :
- 18
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Chemistrybiodiversity
- Accession number :
- edsair.doi.dedup.....2efb9217343834bd4c39d9a8269a8fd0