Phytosterols Content in Vegetable Oils of Brazil: Coconut, Safflower, Linseed and Evening Primrose

Autor(es)

Simone Alves da Silva ; Geni Rodrigues Sampaio ^[2] ; Elizabeth Aparecida Ferraz da Silva Torres ^[3]

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Archives of Biology and Technology; v. 63, 2020-07-24.

Resumo

Abstract In the last years phytosterols, natural components of plants, have received more attention due to association of their consumption with reducing risk of cardiovascular diseases and cancer. There are several scientific studies about phytosterols in vegetable oils, but they are scarce in unconventional oils. The objective of this research was evaluating the content of phytosterols (β-sitosterol, stigmasterol and campesterol) in vegetable oils sold in São Paulo city, in Brazil. The analysis included cold alkaline saponification, derivatization with hexamethyldisilazane and trimethylchlorosilane reagents, and quantification by gas chromatography using flame ionization detection and internal standardization. The quality control parameters indicated that the method was suitable for analysis. Total sterols were between 272.3 mg kg-1 (coconut oil) to 6169.7 mg kg-1 (evening primrose oil). β-sitosterol was the component found in higher concentrations and evening primrose oil was the most representative in quantity of phytosterols. (AU)

• Processo FAPESP: 14/12604-0 - Óleos vegetais extraídos a frio: avaliação da ocorrência de hidrocarbonetos policíclicos aromáticos e das características de identidade e qualidade
• Beneficiário: Elizabeth Aparecida Ferraz da Silva Torres
• Modalidade de apoio: Auxílio à Pesquisa - Regular