Effect of Lactoperoxidase System Activated by Different Substrates on Fresh-Keeping Effect of Raw Milk
Lactoperoxidase system(LPS)is a natural antibacterial activity system existed in fresh raw milk.Based on the study of LPS related literature,experiment is conducted to compare the effectiveness of lactoperoxidase(LP)+thiocyanate(SCN-)+hydrogen peroxide(H2O2)system and lactoperoxidase(LP)+halide(I-)+hydrogen peroxide(H2O2)system activated by different substrates on extending the shelf life of raw milk.The results show that LP+SCN-+H2O2 system and LP+I-+H2O2 system can effectively extend the shelf life of raw milk at room temperature,and LP+I-+H2O2 system has a more significant effect on extending the shelf life of raw milk.
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