Antioxidant potential of water hyacinth (Eichornia crassipes): In vitro antioxidant activity and phenolic composition

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedings – Annual report year: 2011Research

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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 languageEnglish
Title of host publicationWEFTA 2011 - Seafood for the Modern Consumer : Abstracts
Number of pages119
Place of PublicationGothenburg
PublisherChalmers tekniska högskola
Publication date2011
Publication statusPublished - 2011
Event41st Annual WEFTA Meeting: Seafood for the Modern Consumer - Gothenburg, Sweden
Duration: 27 Sep 201130 Sep 2011
Conference number: 41
http://www.wefta2011.org/

Conference

Conference41st Annual WEFTA Meeting
Number41
CountrySweden
CityGothenburg
Period27/09/201130/09/2011
Internet address

ID: 5888209