**Introduction to Casein Phosphopeptide (CPP)** Casein Phosphopeptide (CPP) is a bioactive peptide derived from milk casein, known for its ability to bind and solubilize essential minerals like calcium, iron, and zinc. This enhances their bioavailability, making CPP a valuable ingredient in functional foods, dietary supplements, and oral care products. Research suggests CPP supports bone health, dental remineralization, and improved nutrient absorption. Its stable structure and resistance to enzymatic degradation allow for efficient mineral delivery in the gastrointestinal tract. With growing interest in nutraceuticals, CPP is gaining attention for its potential in preventing deficiencies and promoting overall wellness. Its natural origin and multifunctional benefits make it a promising component in health-focused formulations.
Preparation Process: To prepare **casein phosphopeptide (CPP)**, follow these steps: 1. **Hydrolysis**: Digest casein (e.g., from milk) with a protease (e.g., trypsin or pancreatin) at 37–50°C for 2–6 hours at pH 7–8. 2. **Precipitation**: Adjust the pH to 4.6 to precipitate non-phosphorylated peptides, then centrifuge to collect the supernatant. 3. **Purification**: Use ultrafiltration (3–10 kDa cutoff) or ion-exchange chromatography to isolate phosphopeptides. 4. **Drying**: Lyophilize or spray-dry the purified CPP solution. 5. **Characterization**: Verify purity via HPLC or mass spectrometry. Adjust conditions (enzyme, time, pH) to optimize yield.
Usage Scenarios: Casein phosphopeptide (CPP) is primarily used in food and nutraceutical industries to enhance mineral absorption, particularly calcium, iron, and zinc, due to its ability to bind and solubilize these minerals in the digestive tract. It is commonly added to dairy products, infant formulas, and dietary supplements to improve bioavailability. In dentistry, CPP helps remineralize tooth enamel by stabilizing calcium and phosphate ions, reducing caries risk. Additionally, it is utilized in sports nutrition for muscle recovery and as a functional ingredient in skincare for its moisturizing and anti-aging properties. CPP also finds applications in pharmaceuticals as a drug delivery carrier.