Content of trans fatty acids in margarines, plant oils, fried products and chocolate spreads in Austria

Autor(en)

Karl Heinz Wagner, Eva Auer, Ibrahim Elmadfa

Abstrakt

On the Austrian market a selection of the available margarines, refined and cold pressed plant oils, chocolate spreads, snacks and fast food products were collected and the content of trans-fatty acids (TFA) was determined by a GLC procedure. The highest levels of TFA were observed in fast food products (mean, 5.9%, maximum, 21% of fatty acids), chocolate spreads (mean, 4.9%, maximum, 8.9% of fatty acids) and snacks (mean, 2.9%, maximum, 16% of fatty acids). Margarines with a "<1% TFA" declaration contained low amounts (0.3-0.8%), while the content of margarines with no such declaration was much higher (3.0-3.7%). A 7h oxidation of plant oils at 120 °C demonstrated that the higher levels of TFA in heated oils are not associated with oxidation processes at this temperature. Based on the analysed data, the mean TFA intake (currently <4 g/day) has decreased due to a change in manufacturing conditions and the choice of unhydrogenated plant oils. In spite of this a diet high in snacks, fast food products or chocolate spreads, all products which are popular amongs children and adolescents, may increase the TFA intake up to >10 g/day.

Organisation(en)

Department für Ernährungswissenschaften

Journal

European Food Research and Technology

Band

210

Seiten

237-241

Anzahl der Seiten

5

ISSN

1438-2377

DOI

https://doi.org/10.1007/s002179900080

Publikationsdatum

2000

Peer-reviewed

Ja

ÖFOS 2012

303009 Ernährungswissenschaften

Schlagwörter

ASJC Scopus Sachgebiete

Biotechnology, Food Science, Chemistry(all), Biochemistry, Industrial and Manufacturing Engineering

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/content-of-trans-fatty-acids-in-margarines-plant-oils-fried-products-and-chocolate-spreads-in-austria(426d26b2-9a69-418a-8c93-122eae430286).html