Scheeder M R, Casutt M M, Roulin M, Escher F, Dufey P A, Kreuzer M
Institute of Animal Sciences, Animal Nutrition, ETH Zurich, ETH-Zentrum/LFW, CH-8092 Zurich, Switzerland.
Meat Sci. 2001 Jul;58(3):321-8. doi: 10.1016/s0309-1740(01)00037-7.
The effect of fatty acid composition on the properties of patties standardised to contain 15% fat was studied. Patties were made of beef from 36 Brown Swiss bulls fed on six different diets with five of them containing additional fats to achieve a high variability in body lipid composition. When the feed contained fullfat oilseeds (rapeseed, sunflower seed, linseed), the proportions of some nutritionally favourable fatty acids were increased in the patties. Patties made from the meat of bulls fed linseed and coconut oil could be distinguished in a sensory triangle test from most other groups. Cooking loss and instrumental texture properties showed no relation to fatty acid composition of patties. Cooking only slightly decreased the proportion of saturated fatty acids in favour of polyunsaturated fatty acids. In conclusion, widely differing dietary fats can be fed to bulls without risking major effects on texture of beef patties.
研究了脂肪酸组成对脂肪含量标准化为15%的肉饼特性的影响。肉饼由36头瑞士褐牛的牛肉制成,这些牛饲喂六种不同的日粮,其中五种日粮含有额外的脂肪,以使体脂组成具有高变异性。当饲料中含有全脂油籽(油菜籽、向日葵籽、亚麻籽)时,肉饼中一些营养有益脂肪酸的比例会增加。在感官三角试验中,由饲喂亚麻籽和椰子油的公牛的肉制成的肉饼可与大多数其他组区分开来。蒸煮损失和仪器质地特性与肉饼的脂肪酸组成无关。蒸煮仅略微降低了饱和脂肪酸的比例,有利于多不饱和脂肪酸。总之,可以给公牛饲喂差异很大的日粮脂肪,而不会对牛肉饼的质地产生重大影响。