Casein is a principal phosphoprotein found in milk, accounting for 3.0% of its content and comprising about 80% of total milk protein. It exists in two forms: acid casein and rennet casein, differing in their preparation methods, and has various macroscopic and chemical properties such as being odorless and soluble in dilute alkalies. Casein serves multiple uses, including as a dietary supplement, emulsifying agent, and in industrial applications like textiles and adhesives.

1. PHARMACOGNOSY OF CASEIN
Academica In-Charge, HOD,
PritamJuvatkar
Mobile :
Email : pritamjuvatkar@gmail.Com
9987779536
Department of Pharmacognosy and Phytochemistr
Konkan Gyanpeeth Rahul Dharkar College of
Pharmacy and Research Institute, karjat

2. PHARMACOGNOSY OF CASEIN
• Content
• Biological source
• Family
• Macroscopic characters
• Chemical constituents
• Uses
9987779536
Pritam Vijay juvatkar

3. Biological source:
• Casein is a principal phosphor protein in milk and constitutes 3.0 per cent milk.comprises about 80 per cent total
protein content of milk.
There are two types
• Acid Casein
Warm skimmed milk is acidified with dilute acid, the whey is separated, curd is washed several times, dried and
pulverized.
• Rennet Casein
Skimmed milk is treated with an enzyme, rennet extract; product is separated, and purified.
PHARMACOGNOSY OF CASEIN

4. Macroscopical characters:
• Colour: White, slightly yellow,
• Shape: Amorphous solid, hygroscopic
• Odour: Odourless
• Taste: Tasteless
• Solubility and Stability:
• It is insoluble in water, soluble in dilute alkalies, concentrated acids, but precipitates from dilute acid solutions
• Hygroscopic, stable when dry but deteriorates rapidly when damp
PHARMACOGNOSY OF CASEIN

5. Chemical constituents:
• Casein is a phosphoprotein containing about 0.85 per cent phosphorus and 0.75 per cent sulphur.
• It contains about 15 amino acids also rich in essential amino acids.
• Molecular weight 75000 - 3,70,000, Isoelectric point 4.7, Nitrogen content 15 16 per cent.
9987779536
Pritam Vijay juvatkar
PHARMACOGNOSY OF CASEIN

6. Uses
• It is useful dietary supplement source of protein in pre and post operative care; as a base in the
standardization of proteolytic enzymes and as emulsifying agent.
• Industrially, it is used in sizing of textile and paper, as an adhesive, in preparation of casein
plastic and casein paints.
9987779536
Pritam Vijay juvatkar
PHARMACOGNOSY OF CASEIN