Characteristics of Corn Steep Liquor Powder (CSLP)

Corn Steep Liquor Powder (CSLP) is a fine yellow or brown water-soluble powder derived from Corn Steep Liquor. CSLP is produced through processes such as natural gas spray drying, concentration, and impurity removal. Corn steep liquor itself is a highly concentrated brown solution, obtained from the soaking liquid used in the initial stage of the wet milling process prior to corn starch production. Originally regarded as a by-product with limited value, CSLP has since proven to possess a wide range of industrial and agricultural applications.

Corn steep liquor has a neutral pH (3.5–4.7) and a high solid content, typically containing 40% to 60% water-soluble corn solids, including amino acids, active peptides, vitamins, and organic nitrogen compounds. Due to its high moisture content and liquid form, corn steep liquor is difficult to store and transport. To overcome these limitations, it is processed into a dry and stable form — NPK Fertilizer Corn Steep Liquor Powder 42%

The main components of CSLP are amino acids, active peptides, and other nutrients. It typically contains:

• Protein content > 40%

• Amino acids > 33%

• Ash < 20%

• Moisture < 10%

Compared to the liquid form, CSLP is easier to handle, store, and transport, significantly reducing production and logistics costs.

The water-soluble proteins in CSLP are well preserved, retaining all the beneficial characteristics of the original liquid material. The product is heated using natural gas, ensuring it is free from impurities and coking, making it mold-resistant and easy to use.

Organic Fertilizer Corn Steep Liquor Powder 42 helps stabilize both the yield and quality of final products. It is commonly used in the microbial fermentation industry as a supplement of water-soluble proteins, vitamins, and trace elements in the production of enzyme preparations.

Thanks to its high content of lactic acid bacteria and crude protein, CSLP is highly digestible and promotes efficient nutrient absorption in animals. It is widely applied in concentrated feed formulations, improving not only the nutritional value of the feed but also its appearance, taste, and palatability.

In the pharmaceutical field, CSLP serves as a valuable organic nitrogen source for microbial strains. It can enhance the biosynthesis of penicillin, spectinomycin, chlortetracycline, and other antibiotics.