Optimization of processing parameters for the ultrasonic extraction of goat kid rennet

Using abomasums of 2- to 3- week- old goat kids as material, the effects of some factors such as ultrasound intensity, extraction time, NaCl concentration in extraction solution and ratio of abomasums mucosa to extraction solution on the extraction yield of goat kid rennet were investigated. On the basis of single factor experiments, the processing parameters for ultrasound extraction were optimized using a four-factor orthogonal and rotatory combinatorial design. The results showed that the optimum processing parameters for the extraction of goat kid rennet were: ultrasound intensity, 44 W/ cm(2); extraction time, 25 min; NaCl concentration in extraction solution, 16%; and the ratio of abomasumal mucosa to extraction solution, 1 : 30. In addition, the ultrasonic extraction, as compared with traditional extraction, proved to be more effective. Using abomasums of 2- to 3-week-old goat kids as material, the effects of some factors such as ultrasound intensity, extraction time, NaCl concentration in extraction solution and ratio of abomasums mucosa to extraction solution on the extraction yield of goat kid rennet were investigated. On the basis of single factor experiments, the processing parameters for ultrasound extraction were optimized using a four-factor orthogonal and rotatory combinatorial design. The results showed that the optimum processing parameters for the extraction of goat kid rennet were: ultrasound intensity, 44 W/cm(2); extraction time, 25 min; NaCl concentration in extraction solution, 16%; and the ratio of abomasumal mucosa to extraction solution, 1 : 30. In addition, the ultrasonic extraction, as compared with traditional extraction, proved to be more effective.