%Diameter reduction ¼ ðrawdiameter–cookeddiameterÞ
100=ðrawdiameterÞ
%Thickness increase ¼ ðcookedthickness–rawthicknessÞ
100=ðcookedthicknessÞ:
To estimate the cooking yield, the amount of fat and moisture
retained in the samples was calculated from the following equations:
%Cookingyield ¼ ðcookedweightÞ 100=ðrawweightÞ
%Fat retention ¼ ðcookedweight %fat incookedburgerÞ=ðrawweight
%fat inrawburgerÞ
%Moistureretention ¼ ðcookedweight %moistureincookedburgerÞ
ðrawweight %moistureinrawburgerÞ: