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Resumo(s)
The consumption of the typicaI Mediterranean diet is associated with lower
mortality rates from coronary heart disease (CHD) and cancer (1 ). This diet is low
in meat and higher in fish, fruits and vegetables, also having nuts as valuable
components. There Is a growing interest in evaluating nut's role in a heart healthy
diet and several studies have been made supporting a role for nuts in
reducing CHD (1 ). Among nut species, hazelnuts are widely appreciated. They
are consumed as a fruit but are also used as an ingredient in confectionary
products. Hazelnuts are rich in phytosterols, which due to their structural
similarity with cholesterol, inhibit its Intestinal absorption, thereby reducing blood
cholesterol. Besides, sterol composition is an important tool in the assessment of
identity and quality of vegetable oils (2). In this work, the sterol composition of
oils extracted from different cultivars of hazelnuts grown in Portugal was
evaluated by gas-liquid chromatography coupled to a flame ionization detector
(GLC/FID). The oil was sap onified and the unsaponifiable fraction was isolated
by solid-phase extraction on an aluminium column.
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Citação
Amaral, J.S.; Citóva, I.; Mendes, E.; Assunção, A.; Seabra, R.; Oliveira, M.B.P.P. (2004)- Sterol composition of hazelnuts from different Portuguese cultivars. In Euronalysis XIII Conference. Salamanca.
Editora
Sociedad Española de Química Analítica