Lipid oxidation in biscuits: comparison of different lipid extraction methods

This study was conducted in order to describe a proper method of extraction and quantification of peroxides in a complex matrix as biscuits. Different lipid extraction methods were applied in low lipid biscuits: direct solvent extraction; conventional Soxhlet extraction, the American Association of...

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Detalhes bibliográficos
Autores: Patrignani, Mariela, Conforti, Paula Andrea, Lupano, Cecilia Elena
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/33839
Acesso em linha:http://hdl.handle.net/11336/33839
Access Level:acceso abierto
Palavra-chave:Lipid Oxidation
Biscuits
Lipid Extraction Methods
https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
Descrição
Resumo:This study was conducted in order to describe a proper method of extraction and quantification of peroxides in a complex matrix as biscuits. Different lipid extraction methods were applied in low lipid biscuits: direct solvent extraction; conventional Soxhlet extraction, the American Association of Cereal Chemists (AACC) method and a modification of the AACC method, in which the heating of the sample was avoided. Furthermore, the quantification method of peroxides was simplified and adapted to samples with low lipid content using easily accessible equipment. Significant differences (p ≤ 0.05) were found in the peroxide value of the lipids extracted with different extraction procedures. All the extraction methods performed, except the AACC, were found to be suitable for the determination of peroxides in low lipid biscuits. However, as direct solvent extraction provided a faster and simpler analysis, this method seemed to be the most suitable for peroxide determination in low lipid biscuits.