Introduction to the characteristics of corn steep liquor powder

Corn steep liquor powder is an organic nitrogen source commonly used for microbial growth, and it can also promote the biosynthesis of antibiotics such as penicillin. Widely used in the antibiotic industry (penicillin, erythromycin, gentamicin, spectinomycin, chlortetracycline, etc.), vitamins (Vc, VB2, etc.), amino acids (MSG, lysine, phenylalanine) Acid, etc.), enzyme preparations (amylase, glucoamylase, etc.) and other fermentation industries, in the biological fermentation process as water-soluble plant protein and water-soluble vitamins and other nutritional supplements.

The main components of corn steep liquor and corn steep liquor powder are amino acids and peptide, as well as rich vitamins and growth factors. The protein content is as high as 45%, the total N content is about 2.5-4.5%, the amino nitrogen content is 0.6-1.8%, and the ammonium form The nitrogen content is 0.3-0.7%, the reducing sugar content is 1.2-11%, the lactic acid content is 5-15%, and the volatile acid content such as acetic acid is 0.1-0.3%. The ash contains inorganic elements such as K, Mg, Ca, Fe, P, etc., with a content of 9-12%, of which the dissolved phosphorus can reach 2000-17000y/g based on dry matter.

Corn steep liquor powder is a new alternative to traditional liquid corn steep liquor. The traditional fermented corn steep liquor is to put the corn steep liquor into the fermentation tank, and then mix the fermentation strain and the corn steep liquor to ferment for more than 48 hours. During the fermentation, a certain amount of oxygen is required, constant temperature and continuous stirring are required. In order to improve the fermentation effect, but there will be some disadvantages, such as relatively thick, difficult to clean and so on. Fermentation grade corn steep liquor powder is characterized by its inherent quality that is more stable than corn steep liquor (the effective ingredients are uniform and stable), which enables users of fermentation plants to have good fermentation reproducibility between batches.

Since the fermented corn steep liquor powder is a low-temperature spray-dried powder solid, it is easy to transport, store and use. The product is not easy to deteriorate under dry conditions, and its composition is stable and uniform. Therefore, in the fermentation process, the fermentation of batch and batch fermentation is good (even if the yield and quality of the product produced by the user are stable and reproducible).

The protein content of our corn steep liquor powder is higher than similar products. The protein content test based on the wet method is 47X. The content of soluble deep phosphorus is 50V.

Corn steep liquor powder is made by using fresh corn steep liquor as raw material and instantaneously heated and spray-dried at low temperature. Its water-soluble protein is well preserved and maintains all the characteristics of corn steep liquor. The heating method is steam heating, and the product has no impurities and no caking.