生豆饼中所含的尿素酶、胰蛋白酶抑制剂等会使畜禽机体产生毒性反应。可用豆饼尿素酶活性的快速测定法以区别豆饼生与熟。方法:1.取粉碎好的豆饼粉,均匀地平铺于培养皿中。2.用滴管吸取尿素—苯酚磺试剂,小心地滴在被测定的样品上,将培养皿中 Health soybean cake contains urease, trypsin inhibitors and other livestock and poultry will produce toxic reactions. Available bean curd urease activity rapid determination method to distinguish soybean cake raw and cooked. Method: 1. Take crushed bean cake powder, evenly tiled in Petri dishes. 2. Pipette urea-phenol sulfonate reagent, carefully dropped on the sample was measured, the dish