کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2450222 1109634 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Oil uptake by beef during pan frying: Impact on fatty acid composition
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Oil uptake by beef during pan frying: Impact on fatty acid composition
چکیده انگلیسی

Fat entering food during frying needs to be monitored to control the nutritional properties of the products: fat penetration and fatty acid (FA) composition. The large difference between the apparent diffusion coefficients of lipids and meat fibers allows the use of diffusion-weighted magnetic resonance imaging (DWI) to measure oil uptake profiles. This method, in association with analysis of FAs by gas–liquid chromatography, predicts nutritional changes. Beef samples from finishing cows given control feed or high FA supplemented feed were fried in olive oil at 130 °C and 180 °C. Frying oil penetration was quantified by computing oil signal profiles from 3D DWI. Oil penetration was deeper at 180 °C (5 mm) than at 130 °C (2.5 mm), consistent with oil penetration processes. Oil penetration evaluated with DWI was correlated (R² = 0.82) with biochemical analysis of FA composition. These results highlight the predominance of oil uptake over animal feed effects in the first millimeters of in-plane fried meat.


► We examine changes in beef fatty acids content during pan frying.
► Diffusion-weighted magnetic resonance well images frying oil penetration.
► Frying olive oil comes in deeper at 180 °C than at 130 °C (same treatment time).
► Frying oil determines fatty acids composition in the first millimeters of fried meat.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Meat Science - Volume 91, Issue 1, May 2012, Pages 79–87
نویسندگان
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