Lactoferrin Powder

Lactoferrin Powder is a glycoprotein with multiple biological activities, widely found in breast milk and other human secretions. As a member of the transferrin family, it plays a key role in immune regulation and iron metabolism.

Among all types of breast milk, breast milk, particularly colostrum, contains the highest levels of lactoferrin, reaching 6–14 mg/mL; conventional milk contains approximately 1–3.2 mg/mL. Levels in bovine and goat milk are relatively low.

Lactoferrin's core functions include broad-spectrum antibacterial and antiviral properties, as well as promoting iron absorption. Furthermore, it helps maintain intestinal microbial balance by inhibiting pathogenic bacteria and promoting the proliferation of beneficial bacteria (such as Lactobacilli and Bifidobacteria). As a component of the innate immune system, lactoferrin plays a vital role in human defense and overall health.

Lactoferrin is an important non-heme iron-binding glycoprotein in breast milk. It is widely present in breast milk and other human milks. Breast milk has the highest concentration of lactoferrin, with concentrations ranging from 6 to 14 mg/mL in human colostrum, 1 to 3.2 mg/mL in normal milk, approximately 0.02 to 0.35 mg/mL in bovine milk, and approximately 0.02 to 0.2 mg/mL in goat milk. Data indicate that breast milk lactoferrin has three potential glycosylation sites, located at asparagine residues 138 in the N-lobe and 479 and 624 in the C-lobe, respectively. Bovine, goat, and sheep lactoferrin contain five N-glycosylation sites: Asn233, Asn281, Asn368, Asn476, and Asn545. At present, it has been determined that the primary structure of the lactoferrin polypeptide chain in breast milk and cow's milk contains 703 and 689 amino acid residues respectively, and the amino acid homology between breast milk and cow's milk is 65%~69%, so they have similar biological activities to a certain extent.

1. Enhanced Immune Function
Lactoferrin is a key component of the body's defense system, possessing broad-spectrum antibacterial and antiviral properties. It enhances immunity by regulating immune responses and can synergize with various antibiotics and antifungal drugs to improve the treatment of infectious diseases.

2. Regulating Iron Metabolism and Intestinal Health
Lactoferrin participates in the absorption and transport of iron in the body, promoting its efficient utilization in the intestines. It also inhibits the growth of intestinal pathogens, protects the intestinal mucosa, and promotes the proliferation of probiotics (such as Bifidobacteria), playing a vital role in maintaining a balanced intestinal microbiome.

3. Antioxidant and Antitumor
Lactoferrin possesses antioxidant properties, helping to scavenge excess free radicals in the body and reduce oxidative stress damage. Studies have also shown that it has inhibitory effects on various tumor cells, demonstrating its anti-cancer potential.

4. Promoted Growth and Tissue Repair
This protein supports bone growth, wound healing, and enhances hematopoiesis. For infants and young children, it can effectively prevent infection by blocking pathogens from colonizing the intestines.

5. Application and Development Prospects
Lactoferrin has been approved as a nutritional supplement for use in foods and formula milk in China, the United States, and other countries. Recent studies have found that its receptors are often overexpressed in cancerous tissues, making it a potential ligand for targeted drug delivery systems and holding significant development potential in the medical field.

Lactoferrin Powder, as an important nutritional protein, has multiple physiological functions, including promoting iron absorption, boosting immunity, and regulating intestinal flora. The following six groups are particularly suitable for appropriate supplementation:

Pregnant women

Pregnancy increases iron needs. Lactoferrin supplementation can improve iron absorption efficiency, helping to prevent anemia. It can also boost immunity and reduce the risk of infection during pregnancy.

Non-breastfed infants and young children

These infants lack the natural immune components of breast milk, and their immune systems are not yet fully developed. Lactoferrin supplementation can help build immune defense mechanisms and enhance resistance to pathogens.

Premature infants

Premature infants are more susceptible to respiratory problems, low immune markers, imbalanced intestinal flora, and anemia. Lactoferrin supplementation can positively impact their health.

Children with weakened immune systems

For children who frequently catch colds or get sick, lactoferrin, as an immune nutrient, can help strengthen their constitution and reduce the risk of infection.

Infants and young children prone to diarrhea

A combined lactoferrin and probiotic supplementation is recommended. Lactoferrin can inhibit pathogenic bacteria, promote the proliferation of beneficial bacteria, and help restore a balanced intestinal flora.

Elderly People
With aging, the body's immune function gradually declines. Supplementing with lactoferrin helps maintain normal immune system function and support overall health.

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