Abstract
The aims of the present study were (a) to extract
and quantify the main phenolic acids and
tocopherols from the petiole, leaf and flowers of
Eichornia crassipes, (b) to evaluate the
antioxidant capacity of the extracts in four in
vitro systems (DPPH radical scavenging ability,
iron chelating activity, reducing power and
prevention of oxidation in a liposome model
system) and its effectiveness in retarding lipid
peroxidation in fish oil by accelerated stability
test. Significant differences were observed in
total and individual phenolic content and
antioxidant activities of extracts from the various
parts of E. crassipes. Out of the 11 phenolic
acids analysed, ethanolic extracts contained high
amounts gallic, protocatechuic, gentisic and phydroxybenzoic
acid, whereas, water extracts
contained less amounts of varied number of
phenolic acids. Ethanolic extracts of flower,
which contained the highest total phenolic
content, were found to have high DPPH radical
scavenging activity and reducing power.
Ethanolic extracts of leaf were found to have
high Fe2+ chelating activity and inhibited lipid
peroxidation in liposomes and fish oil. Our
results demonstrate that E. crassipes, an
underutilized aquatic weed, could be a potential
natural antioxidant source for food, feed and
pharmaceutical applications.
Original language | English |
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Title of host publication | WEFTA 2011 - Seafood for the Modern Consumer : Abstracts |
Number of pages | 119 |
Place of Publication | Gothenburg |
Publisher | Chalmers tekniska högskola |
Publication date | 2011 |
Publication status | Published - 2011 |
Event | 41st Annual WEFTA Meeting: Seafood for the Modern Consumer - Gothenburg, Sweden Duration: 27 Sept 2011 → 30 Sept 2011 Conference number: 41 http://www.wefta2011.org/ |
Conference
Conference | 41st Annual WEFTA Meeting |
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Number | 41 |
Country/Territory | Sweden |
City | Gothenburg |
Period | 27/09/2011 → 30/09/2011 |
Internet address |