Lactoperoxidase‌

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[ CAS No. ] 9003-99-0
[ Source ] Bovine Milk
[ Specification ] 100,000 U/g
[ Appearance ] White powder

[ Function ]
1. Inhibits bacterial growth by disrupting surface proteins and enzymes, thereby suppressing bacterial metabolism and reproduction;
2. Delays bacterial proliferation and slows the rate of spoilage in fresh milk;
3. Helps break down excess local hydrogen peroxide, reducing oxidative damage;
4. Protects mucosal barriers and reduces bacterial colonization on the surfaces of the mouth, eyes, and respiratory tract;
5. Extends the shelf life of fresh milk by activating the lactoperoxidase system;
6. Acts as a preservative in skincare products, utilizing a mild preservation system based on lactoperoxidase and glucose oxidase;

[ Application ]
1. Food Industry
Natural preservation, shelf-life extension
2. Dairy Products
Microbial inhibition, fresh milk preservation
3. Oral Care
Antimicrobial properties, oral health maintenance
4. Medicine Industry
Antimicrobial materials, biological testing
5. Cosmetics and Personal Care Applications
A small number of skincare products use a mild preservative system based on lactoperoxidase and glucose oxidase

About ‌Lactoperoxidase‌
Lactoperoxidase is a naturally occurring heme protein with antimicrobial properties found in milk; it often functions alongside thiocyanate and hydrogen peroxide as part of the "lactoperoxidase system" to inhibit bacterial growth.
As a component of the mammalian immune system, lactoperoxidase (LPO) is present in secretions such as milk, saliva, and tears. Its primary function involves working with hydrogen peroxide and thiocyanate to generate bacteriostatic substances that inhibit bacteria and protect mucous membranes; it is also commonly utilized in food preservation and oral care. In both the human body and the food industry, it plays a key role in inhibiting bacterial growth, aiding preservation, and supporting innate immunity, though it typically requires the synergistic action of hydrogen peroxide and thiocyanate to be effective. Beyond its antimicrobial activity, it helps prevent the accumulation of peroxides, thereby avoiding cellular damage and protecting mammary gland health.