Peptone is a powder with a light yellow appearance. It is a light yellow powder obtained by concentration and drying. It has good physical properties such as light color, easily soluble, transparent and no precipitation. Various microbial culture media can be prepared.

Generally speaking, the proteins used in peptone production include animal proteins (casein, meat) and plant proteins (legumes). Peptone is not only rich in amino acids, especially sulfur-containing amino acids, but also contains more vitamins and other growth factors needed for bacterial growth. It is the basic raw material for biopharmaceutical fermentation and preparation of various culture media. Its main role in the culture medium is to provide a nitrogen source.

Use of peptone: used as culture medium in the laboratory to cultivate bacteria. Used in food to increase protein content. Used in feed, it significantly reduces the production cost of feed mills, and is a good product in the feed industry where protein sources are insufficient.

Tryptone is a high-quality protein, also known as tryptone or tryptone. This peptone is a light yellow powder made from casein digested by trypsin, concentrated and dried. It has good physical properties such as light color, easy solubility, transparency and no precipitation. Various microbial culture media can be prepared.

Casein peptone is refined from casein hydrolyzed by trypsin, and its color is light yellow or white. Moon peptone uses protamine as the matrix and is a dry powder prepared through special hydrolysis and extraction. It is extremely nutritious and can be used as the basis of a variety of culture media.

Soy peptone is a light yellow powder extracted from soybeans using a new process. It contains a variety of nutrients and is suitable as a raw material for microbial culture. It is specially used to culture Streptococcus, Pneumococcus, Brucella, etc. It is rich in nutrients and can also be used as fermentation raw material for industrial production.

Beef peptone is made from fresh beef and refined using the latest technology. Its main function in the culture medium is to supplement the nutritional deficiencies of peptone and other nitrogen sources. Polyvalent peptone is refined using advanced biological extraction technology and is a light yellow dry powder. It is extremely nutritious and can be used as the basis of a variety of culture media. Suitable for the growth of Neisseria, Salmonella, etc.

Bone peptone is a product of protein decomposition, such as beef, casein, milk powder, gelatin, soy protein, silk protein, fibrin, etc. as raw materials, and is a product obtained through an incomplete hydrolysis process. Commercially available products are mainly light yellow to brown powder. Its molecular weight is between that of peptides and peptides, about 2,000.

The composition of hydrolysates can vary widely depending on different sources of protein and different hydrolysis conditions. So peptone is often a complex mixture of polypeptides. Soluble in water, does not solidify when overheated, does not precipitate in saturated ammonium sulfate but can be precipitated by protein precipitating agents. It can be used as an ingredient in microbial and animal cell culture media, special functional foods and cosmetics, and as a stabilizer for beer and other products.