Definition:

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Xenoluna®Milk protein concentrate Health Benefits:

Xenoluna®Milk protein isolate is a high-purity protein extracted from cow's milk. It typically has a protein content of at least 90%, and the process virtually removes lactose, fat, and most minerals from the milk. This process retains the amino acid composition and biological activity of natural milk proteins.

■ Source

Xenoluna®Milk protein isolate is made from raw milk. Milk itself naturally contains two main types of protein. Casein, which makes up about 80 per cent of the total milk protein, is a slow-release, absorbent protein that coagulates under acidic conditions; whey protein, which makes up about 20 per cent, is a water-soluble protein that is fast-absorbing and has a well-balanced amino acid profile. The core feature of isolated milk proteins is that the natural proportions of these two types of proteins in milk are retained, rather than extracting one in isolation, so their origin is essentially a concentration of the ‘whole protein fraction’ of milk, with further isolation techniques to achieve products with high protein content.

Particularities of Xenoluna®Milk protein concentrate:

Product Specifications:

Xenoluna®Whey protein concentrate is available in the following specification and contents:

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☑ Xenoluna®Milk protein isolate 85%

Product quality standards:

● Infant formula, In-house

Ingredients:

● Milk protein concentrate and does not contain any other additives.

▶ Efficient supply of high quality protein

▶ Suitability for special populations

Xenoluna®Milk protein isolate Applications:

For lactose-intolerant or -sensitive infants, Xenoluna®Milk protein isolate's low-lactose property can reduce bloating, diarrhea, etc. Xenoluna®Milk protein isolate can be used in special formulas for premature or low-birth-weight infants because its high-protein, easily absorbed characteristics can meet the nutritional needs of rapid growth. Xenoluna®Milk protein isolate can also be used to fortify the protein content of complementary foods such as rice powder and purée without affecting the texture.

The process of Xenoluna®Milk protein isolate retains the essential amino acids found in milk, such as lysine, methionine, and tryptophan. The proportion of whey protein can be increased by adjusting the process. These amino acids are key to bone and brain development and immune system construction in infants and young children. The kidneys of infants are immature and have a limited ability to excrete protein metabolites (e.g., urea). The high purity and high digestion and absorption rate of MPI can provide sufficient protein while reducing metabolic waste from undigested protein, thus lowering the burden on the kidneys. This makes MPI especially suitable for babies with weakened renal function, such as preterm babies and those with low birth weight.

Cow's milk protein allergy (CMPA) is a common food allergy in infants and young children, triggered mainly by casein and whey proteins in milk. The process of Xenoluna®Milk protein isolate removes fat, lactose, and other components that bind to the protein. This reduces exposure to allergens in the intestinal immune system. Compared to regular milk protein or milk protein concentrate (MPC), MPI contains almost no non-protein impurities, which reduces the possibility of allergy triggers from "mixed proteins." MPI can be used as an alternative to partially hydrolyzed proteins for infants and children with mild allergy risk, providing a safer source of protein for babies who cannot be breastfed.

▶ Reduces digestive burden, suitable for sensitive stomachs

The production process of Xenoluna®Milk protein isolate (e.g., ultrafiltration and nanofiltration) removes more than 90% of lactose. Lactose intolerance in infants and young children, especially those under six months old, can lead to bloating, diarrhea, crying, etc., due to insufficient secretion of the enzyme lactase in the intestinal tract. MPI's low-lactose property reduces the risk of lactose intolerance and is suitable for babies who have difficulty digesting lactose.

☑ Xenoluna®Milk protein isolate 90% (Low lactose/Lactose-free)

■ Nutritional Value

Xenoluna®Milk protein isolate contains all nine essential amino acids, including lysine and leucine, as well as other branched-chain amino acids. It has a Protein Digestibility-Corrected Amino Acid Score (PDCAAS) of 1.0 and a Biomass Value (BV) greater than 90. These properties make milk protein isolate a "golden protein" in nutritional science. It is considered a "golden protein" in nutritional science. Milk protein isolate is almost lactose-free (≤0.5%) and fat-free (≤0.1%), making it suitable for people with lactose intolerance or high blood fat, as well as for special medical purposes.

■ Production technology description

Xenoluna®Milk protein isolate uses skimmed milk as the core ingredient. Whole milk is used in some processes, but it must first be skimmed. Pasteurization is carried out at 72-85°C for 15-30 seconds to kill microorganisms in the milk while avoiding the destruction of the protein structure. After pasteurization, the milk is quickly cooled to 4-10°C and stored in sterile tanks to prevent secondary bacterial contamination. The high purity of the separated milk proteins depends mainly on the combined membrane filtration processes of ultrafiltration (UF), microfiltration (MF), and nanofiltration (NF), which remove impurities of different molecular weights in steps. In the first UF stage (initial protein concentration), water molecules, lactose, and small minerals pass through, while casein and whey proteins are retained. Secondary microfiltration (the separation of residual fat and macromolecular impurities) traps fat globules and casein micelle aggregates, as well as any remaining macromolecular impurities, ensuring a low-fat product (typically ≤1%). The tertiary nanofiltration stage targets the removal of small lactose and mineral molecules (e.g., sodium, potassium, and calcium) remaining after ultrafiltration. This reduces the lactose content to ≤1% and the mineral content to ≤5%. This step is key to achieving a high "Separation Level," which involves the deep stripping of non-protein components through precise protein retention. If further mineral reduction is required (e.g., to produce low ash MPI), an electrodialysis process can be added after nanofiltration to remove residual anions and cations (e.g., calcium and phosphorus) via an ion-exchange membrane. After multi-stage filtration, the protein concentrate is spray-dried at a low temperature to prevent protein denaturation while quickly dehydrating, resulting in a powder with good flowability.

Xenoluna®Milk protein isolate is available in the following specification and contents: