Effect of Ultrasonic Treatment on the Extracting Activity of Kid Rennet  

作　　者：ZHANGFu-xin LILin-qiang 

机构地区：[1]DepartmentofFoodEngineering,ShaanxiNormalUniversity,Xi＇an710062,P.R.China

出　　处：《Agricultural Sciences in China》2005年第3期230-235,共6页中国农业科学（英文版）

基　　金：The study was supported by Natural Science Founda—tion of Shaanxi Province of China (2003C134)．

摘　　要：Using 2-3 weeks kid abomasums as materials, the ultrasound intensity, extracting time, NaCl concentration and pH valuein extracting solution and ratio of abomasums to extracting solution were studied by ultrasonic method. The resultsshowed that the main factor affecting kid rennet activity during extraction was ultrasound intensity, and then NaClconcentration, extracting time and ratio of abomasums to extracting solution in order. Kid rennet activity reached peakwith ultrasound intensity 30 W cm-2, extraction time 40 min, NaCl concentration 8%, pH value 3.0, ratio of abomasums toextracting solution 1:15.Using 2-3 weeks kid abomasums as materials, the ultrasound intensity, extracting time, NaCl concentration and pH valuein extracting solution and ratio of abomasums to extracting solution were studied by ultrasonic method. The resultsshowed that the main factor affecting kid rennet activity during extraction was ultrasound intensity, and then NaClconcentration, extracting time and ratio of abomasums to extracting solution in order. Kid rennet activity reached peakwith ultrasound intensity 30 W cm-2, extraction time 40 min, NaCl concentration 8%, pH value 3.0, ratio of abomasums toextracting solution 1:15.

关 键 词：Ultrasonic extraction Kid rennet Rennet activity Influencing factors 

分 类 号：S827.1[农业科学—畜牧学]