Description

α-Casein (90-95) is a high-purity, principal protein fraction derived from milk casein. This product is essential for research and industrial applications requiring a consistent and well-characterized protein source with high α-casein content. It is particularly valuable for manufacturers and R&D teams in the food science, nutritional supplement, and biomedical sectors seeking a reliable functional ingredient or analytical standard.

Application

• As a functional protein ingredient in specialized nutritional products and high-protein food formulations.
• As a standard reference material for analytical method development and quality control in dairy protein analysis.
• For biomedical and biochemical research, including studies on protein structure, interactions, and enzymatic digestion.
• In the development of encapsulation systems and edible films for controlled release applications.
• As a substrate or raw material for the production of bioactive peptides and casein hydrolysates.
• For use in model systems to study emulsion stability, foaming properties, and gelation in food science.

Basic Information

Product Name	α-Casein (90-95)
CAS No.	83471-50-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	α-Casein; α-S1-Casein; Casein Alpha S1; AS1-Casein; Bovine α-Casein; Casein, α-1; Milk Protein α-Casein
EINECS	Contact for details

Quality Control

Our α-Casein (90-95) is produced and tested under a rigorous quality management system. Each batch is analyzed to ensure it meets high-purity standards, with key parameters including protein content and composition verified. A comprehensive Certificate of Analysis (COA) documenting identity, purity, and safety is available for every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This product is hygroscopic (moisture-sensitive) and should be handled in a low-humidity environment to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to standard
Assay (α-Casein)	90% - 95%
Protein Content (N x 6.38)	≥ 90.0%
Loss on Drying	≤ 8.0%
Ash	≤ 2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.