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| Hirashima,Karen; Silva,Simone Alves da; Caruso,Miriam Solange Fernandes; Aued-Pimentel,Sabria. |
| Encapsulated specialty oils commercialized in São Paulo state, Brazil, were evaluated for their identity (fatty acids profile) and compliance with nutrition labeling (fatty acids and Vitamin E (alpha tocopherol) contents). Twenty one samples [flaxseed oil (6), evening primrose (5), safflower (8), borage (1), and black currant (1)] purchased from local markets or collected by the health surveillance agency were analyzed. The fatty acids and vitamin E contents were analyzed by gas chromatography with flame ionization detector and liquid chromatography with UV detector, respectively. Nine samples were adulterated (5 samples of safflower oil, 3 of flaxseed oil, and one of evening primrose). Among them, 3 flaxseed and 2 safflower oil samples were probably... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Specialty oils; Functional food; Legislation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000100016 |
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| Aued-Pimentel,Sabria; Silva,Simone Alves Da; Takemoto,Emy; Cano,Cristiane Bonaldi. |
| The increased marketing of olive oil in Brazil has intensified legal requirements to ensure regulation of this product. The measurement of the specific extinction at 270 nm (E 270) and content of stigmastadiene can be used to assess the presence of refined oils in virgin olive oil. During the vegetable oil refining process, compounds with conjugated double bonds are generated from unsaturated fatty acids that absorb at 270 nm and sterols, such as stigmasta-3,5-diene. To compare these parameters, seven samples of extra virgin olive oil and three samples of olive oil (blend of virgin and refined) were analyzed. Among the samples analyzed, four extra virgin samples had levels of stigmastadiene and E 270 higher than expected, among which two were adulterated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adulteration; Quality control; Legislation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000300015 |
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| Aued-Pimentel,Sabria; Kumagai,Edna Emy; Kus,Mahyara Markievicz Mancio; Caruso,Miriam Solange Fernandes; Tavares,Mário; Zenebon,Odair. |
| Neste trabalho são apresentados os resultados da composição de ácidos graxos, principalmente trans, de óleos vegetais poli-insaturados refinados, coletados no comércio do estado de São Paulo entre os anos de 2005 e 2007. Foram analisadas 34 amostras de óleo de soja, 7 de girassol, 2 de canola e 6 de milho. Os ésteres metílicos de ácidos graxos foram preparados por transesterificação alcalina a frio e analisados por cromatografia gasosa em coluna capilar de 100 m (SP 2560), após a otimização das condições analíticas. Dezesseis amostras de óleo de soja, duas de canola e quatro de girassol apresentaram níveis de ácidos graxos trans acima de 2,0% (p/p de ésteres metílicos). De acordo com a Resolução RDC 360/2003 da ANVISA/MS, é obrigatória a declaração dos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ácidos graxos trans; Óleos vegetais refinados; Legislação brasileira; Rotulagem nutricional. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612009000300030 |
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