Study on the lactoperoxidase characteristic in Saanen goat milk

Using Xinong Saanen goat milk as material,characteristics of lactoperoxidase was studied.The influences of temperature,pH and light on the lactoperoxidase activity were investigated.The results showed that lactoperoxidase had a high stability to heat and the optimum temperature for lactoperoxidase was 45~55℃;the optimum pH for lactoperoxidase was 5.5~6.0;lactoperoxidase activity lost much under the light,after light treatment for 3h,compared to without light the lactoperoxidase activity was shortened 24.00%.The results provided the scientific foundation for the preservation of goat milk by lactoperoxidase system.