Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/7368
Title: Insights in the antioxidant synergistic effects of combined edible mushrooms: phenolic and polysaccharidic extracts of Boletus edulis and Marasmius oreades
Authors: Vieira, Vanessa
Marques, Azucena
Barros, Lillian
Barreira, João C.M.
Ferreira, Isabel C.F.R.
Keywords: Edible mushrooms
Phenolics
Polysaccharides
Antioxidant activity
Synergism
Issue Date: 2012
Citation: Vieira, Vanessa; Marques, Azucena; Barros, Lillian; Barreira, João C.M.; Ferreira, Isabel C.F.R. (2012) - Insights in the antioxidant synergistic effects of combined edible mushrooms: phenolic and polysaccharidic extracts of Boletus edulis and Marasmius oréades. Journal of Food and Nutrition Research. ISSN 1336-8672. 51:2, p. 109-116
Abstract: In a previous work, we reported the presence of Marasmius oreades in mixtures with antioxidant synergistic effects, and the mixture Boletus edulis and Marasmius oreades (50% of each) as having the highest antioxidant activity, but without synergism among the phenolic extracts. Herein, phenolic and polysaccharidic extracts from both species were combined in different proportions (12.5, 25, 50, 75 and 87.5%) and compared to controls (individual samples), in order to give insight in the contribution of each species to antioxidant synergistic effects. The antioxidant activity of the individual or combined extracts obtained from both edible mushrooms was evaluated through their 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging activity, reducing power, -carotene bleaching inhibition and lipid peroxidation inhibition in brain homogenates using thiobarbituric acid reactive substances (TBARS) assay. Synergism was the main observed effect among the combined extracts, either phenolic or polysaccharidic. However, the effect of each B. edulis and M. oreades proportion was not the same for all antioxidant activity assays. In fact, the same mixture exhibited sometimes opposite behaviours according with the performed antioxidant activity assay.
Peer review: yes
URI: http://hdl.handle.net/10198/7368
ISSN: 1336-8672
Appears in Collections:BB - Artigos em Revistas Indexados ao ISI/Scopus

Files in This Item:
File Description SizeFormat 
jfnr-2012-2-p109-116-vieira.pdf269,03 kBAdobe PDFView/Open


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.