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Comparative antioxidant activity of edible Japanese brown seaweeds.
- Source :
-
Journal of food science [J Food Sci] 2011 Jan-Feb; Vol. 76 (1), pp. C104-11. Date of Electronic Publication: 2010 Nov 29. - Publication Year :
- 2011
-
Abstract
- Japanese edible brown seaweeds, Eisenia bicyclis (Arame), Kjellmaniella crassifolia (Gagome), Alaria crassifolia (Chigaiso), Sargassum horneri (Akamoku), and Cystoseira hakodatensis (Uganomoku) were assayed for total phenolic content (TPC), fucoxanthin content, radical scavenging activities (DPPH, peroxyl radical, ABTS, and nitric oxide), and antioxidant activity in a liposome system. Among the solvents used for extraction, methanol was the most effective to extract total phenolics (TPC) from brown seaweeds. Among 5 kinds of brown seaweeds analyzed, methanol extract from C. hakodatensis was the best source for antioxidants. The high antioxidant activity of the extract was based not only on the high content of phenolics, but on the presence of fucoxanthin. No significant correlation (P > 0.05) was observed between TPC per gram extract with DPPH radical scavenging activity of the methanol extracts. These observed discrepancy would be due to structural variations in the phenolic compounds, and different levels of fucoxanthin in the extracts. The present study also demonstrated the synergy in the antioxidant activity of the combination of brown seaweed phenolics and fucoxanthin.
- Subjects :
- Algorithms
Antioxidants isolation & purification
Complex Mixtures chemistry
Complex Mixtures isolation & purification
Food Preservatives analysis
Food Preservatives chemistry
Food Preservatives isolation & purification
Free Radical Scavengers analysis
Free Radical Scavengers chemistry
Free Radical Scavengers isolation & purification
Japan
Laminaria chemistry
Liposomes chemistry
Methanol chemistry
Oxidation-Reduction
Phenols analysis
Phenols chemistry
Phenols isolation & purification
Phosphatidylcholines chemistry
Sargassum chemistry
Solvents chemistry
Species Specificity
Time Factors
Xanthophylls analysis
Xanthophylls chemistry
Xanthophylls isolation & purification
Antioxidants analysis
Antioxidants chemistry
Seaweed chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1750-3841
- Volume :
- 76
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Journal of food science
- Publication Type :
- Academic Journal
- Accession number :
- 21535637
- Full Text :
- https://doi.org/10.1111/j.1750-3841.2010.01915.x