Biblioteca Digital do Instituto Politécnico de Bragança   Instituto Politécnico de Bragança

Biblioteca Digital do IPB >
Escola Superior Agrária >
Biologia e Biotecnologia >
BB - Resumos em Proceedings Não Indexados ao ISI/Scopus >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/3468

Título: Mushrooms as a source of nutraceuticals related to antioxidant properties
Autor: Barros, Lillian
Baptista, Paula
Ferreira, Isabel C.F.R.
Issue Date: 2008
Citação: Barros, Lillian; Baptista, Paula; Ferreira, Isabel C.F.R. (2008) - Mushrooms as a source of nutraceuticals related to antioxidant properties. In XVI Congresso Nacional de Bioquímica. Ponta Delgada
Resumo: experiments were performed in Cantharelfus cibarius. Hypholoma fasciculare, Lepista nuda, Lycoperdon molle, Lycoperdon perlatum, Ramaria botrytis and Tricholoma acerbum wild species. Their antioxidant activity was screened through chemical and biochemical assays; chemical assays allowed an evaluation of their reducing power, radical scavenging activity and inhibition of P-carotene bleaching capacity, while biochemical assays evaluated the lipid peroxidation inhibition capacity, using brain cells as models. The analysis of nutraceuticals included determination of fatty acids by GC-FID, and other phytochemicals such as tocopherols, by HPLC-fluorescence, and phenolics, flavonoids, carotenoids and ascorbic acid, by spectrophotometer techniques. Ali the species proved to have antioxidant activity, being R. botrytis the most effective mushroom (EC50 values lower than I mg/mL). These properties seem to be related to its higher content in phenols and tocopherols. lt also presented the highest MUFA (particularly oleie acid) and the lowest SFA levels, which m ay be relevant since the substitution of SFA with MUFA leads to an increase in HDL cholesterol and decrease in LDL cholesterol, triacylglycerol, lip id oxidation, and LDL susceptibility to oxidation. This study contributes not only to a better knowledge of mushrooms but also to its valorisation.
Arbitragem científica: yes
URI: http://hdl.handle.net/10198/3468
Appears in Collections:BB - Resumos em Proceedings Não Indexados ao ISI/Scopus

Files in This Item:

File Description SizeFormat
Nac_27.pdf392,37 kBAdobe PDFView/Open

Please give feedback about this item
Statistics
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

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

 


© Instituto Politécnico de Bragança - Biblioteca Digital - Feedback - Statistics
Promotores do RCAAP   Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência PO Sociedade do Conhecimento (POSC) Portal oficial da União Europeia