OPTIMIZATION OF EXTRACTION CONDITIONS OF VOLATILE COMPOUNDS OF ROASTED BEEF BY SOLID-PHASE MICROEXTRACTION

Carregando...
Imagem de Miniatura

Data

2020-04-01

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Soc Brasileira Quimica

Tipo

Artigo

Direito de acesso

Acesso abertoAcesso Aberto

Resumo

Aroma is one of the most important sensory attributes for acceptance by beef consumers. The first step in analysing the volatile compounds associated with this attribute is their extraction from the food matrix, solid-phase microextraction has been widely used for volatile compound determination in meat. This study aimed to test six different solid-phase microextraction (SPME) fibre coating materials for their volatile compounds extraction efficiency for roasted beef and to optimize the extraction conditions using response surface methodology. Gas chromatography coupled with a flame ionization detector (GC-FID) and mass spectrometry (GC-MS) were used. The choice of SPME fibre coating was based in the total area obtained by GC-FID analysis for the six fibre coatings. The optimum time and temperature for SPME extraction was 60 degrees C/65 minutes. The mixed-phase fibre coatings showed the best results for extracting volatile compounds in roasted beef as higher number of compounds were identified. The carboxen/polydimethylsiloxane (CAR/PDMS) fibre extracted the largest number of compounds under the optimum extraction condition. Aldehydes were the predominant class of compounds found in roasted beef, followed by alcohols and hydrocarbons.

Descrição

Idioma

Inglês

Como citar

Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 43, n. 4, p. 435-441, 2020.

Itens relacionados

Coleções