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Title: Chemical, biochemical and electrochemical assays to evaluate phytochemicals and antioxidant activity of wild plants
Authors: Barros, Lillian
Cabrita, Luís
Vilas-Boas, Miguel
Carvalho, Ana Maria
Ferreira, Isabel C.F.R.
Keywords: Cytisus multiflorus
Filipendula ulmaria
Sambucus nigra
Issue Date: 2011
Publisher: Elsevier
Citation: Barros, Lillian; Cabrita, Luis; Vilas Boas, Miguel; Carvalho, Ana Maria; Ferreira, Isabel (2011) - Chemical, biochemical and electrochemical assays to evaluate phytochemicals and antioxidant activity of wild plants. Food Chemistry. ISSN 0308-8146. 127:4, p. 1600-1608
Abstract: Plants are a source of compounds that may be used as pharmacologically active products. Cytisus multiflorus, Filipendula ulmaria and Sambucus nigra have been used as important medicinal plants in the Iberian Peninsula for many years, and are claimed to have various health benefits. Herein, the phytochemical composition and antioxidant activity of the mentioned wild medicinal plants were evaluated in vitro, based on chemical, biochemical and electrochemical methods. F. ulmaria was found to be richest in antioxidant phytochemicals, such as phenolics (228 mg GAE/g DW), flavonoids (62 mg CE/g DW), ascorbic acid (2700 lg/g DW) and tocopherols (497 lg/g DW). The antioxidant activity was found to vary in the order: F. ulmaria > S. nigra > C. multiflorus, irrespective of the analysis method. Electrochemical methods have proven to be rapid and inexpensive techniques to characterise the antioxidant activity of plant extracts.
Peer review: yes
ISSN: 0308-8146
Appears in Collections:CIMO - Artigos em Revistas Indexados ao ISI/Scopus

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