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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/6271

Título: QCAR models to predict wild mushrooms radical scavenging activity, reducing power and lipid peroxidation inhibition
Autor: Froufe, Hugo J.C.
Abreu, Rui M.V.
Ferreira, Isabel C.F.R.
Palavras-chave: Wild mushrooms
Phenolics
alpha-tocopherol
Antioxidant activity
QCAR
PLS
Issue Date: 2011
Editora: Elsevier
Citação: Froufe, Hugo J.C.; Abreu, Rui M.V.; Ferreira, Isabel C.F.R. (2011) - QCAR models to predict wild mushrooms radical scavenging activity, reducing power and lipid peroxidation inhibition. Chemometrics and Intelligent Laboratory Systems. ISSN 0169-7439. 109:2, p. 192-196
Resumo: Wild mushrooms have become attractive as a source of physiologically beneficial compounds including antioxidants such as phenolic compounds and tocopherols. The concentrations of antioxidant compounds (phenolics and α-tocopherol) and EC50 values of antioxidant activity (concentration required to achieve 50% of radical scavenging activity and lipid peroxidation inhibition, or 0.5 of absorbance in reducing power) were analyzed by partial least square (PLS) regression analysis. Three QCAR (Quantitative Composition-Activity Relationship) models were constructed and their robustness and predictability were verified by internal and external cross-validation methods. Antioxidant activity correlated well with phenolics and -tocopherol contents, the major antioxidants in wild mushrooms. The models proved to be useful tools in the prediction of mushrooms radical scavenging activity, reducing power and lipid peroxidation inhibition.
Arbitragem científica: yes
URI: http://hdl.handle.net/10198/6271
ISSN: 0169-7439
Versão do Editor: http://www.sciencedirect.com/science/journal/01697439
Appears in Collections:BB - Artigos em Revistas Indexados ao ISI

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