Peptone is widely used in microbiology as a nutrient source for culturing bacteria and other microorganisms. It provides essential amino acids and peptides that support microbial growth, making it a key component in nutrient broths and agar media. In the pharmaceutical industry, peptone serves as a raw material for producing vaccines, antibiotics, and enzymes. It is also utilized in the food industry to enhance flavor and as a protein supplement in various products. Additionally, peptone plays a role in biochemical research, where it is used to study enzyme activity and protein synthesis. Its versatility and nutrient-rich composition make it valuable across multiple scientific and industrial applications.