SU552065A1 - The method of obtaining a nitrogen-containing feed additive - Google Patents

Description

(54) METHOD FOR PRODUCING NITROGEN-CONTAINING FEED ADDITIVE

one

The invention relates to the production of feed containing synthetic nitrogen-containing additives intended for feeding to ruminants.

A known method for producing a nitrogen-containing feed additive consists in hydrolysis of polysaccharides of vegetable raw materials with acid, mixing the resulting hydrolysis mass with urea and synthesis of glycosylureas.

However, in the production of a feed additive by this method, no more than 65-70% of sugars are bound to glycosylureas, while the total glycosylurea content in the finished product is about 25%. In addition, the finished products are liquid products, which makes them difficult to dispense and add to feed and feed mixtures.

The aim of the invention is to increase the yield of glycosylureas.

To achieve this goal, the hydrolysis of polysaccharides is carried out at a ratio of plant material and acid of 1.0: 1.2 until complete absorption of the acid by plant material.

In this case, the hydrolysis of polysaccharides of vegetable raw materials, it is advisable to carry out at 100-130 ° C for 0.5-2.0 hours.

The hydrolysis of the raw carbohydrates with acids is carried out by heating for several hours. Dry urea is added to the hydrolyzate obtained, and heating is continued at a lower temperature for a certain time. A decrease in the moisture content of the mixture shifts the reaction towards increasing the glycosylurea content. The resulting product is dried in a known manner until dry and crushed. Example. The original vegetable raw materials, such as wheat fodder grain, crushed in the grain and mixed with 1 n. hydrochloric acid. The mixture is coiled for 30 minutes and heated for 2 hours at 120 ° C. Dry urea is added to the hydrolyzate mass cooled to 65 ° C, based on the molar ratio and reducing sugars (in terms of glucose): urea 1.0: 1.5. Pagrev mixture - glycosylurea synthesis - is carried out at 60 ° C for 3.5 hours. At the end of the synthesis, the product is dried at 60 ° C to dryness and ground.

In the finished product, the yield of glycosylureas is 88-90% of the total content of reducing sugars.

The chemical composition of the resulting feed additive is the following (%): Nitrogen:

total12.5

insoluble0.9

Unbound Urea Nitrogen5,4 Glycosyl Urea (chromatographic and enzymatic) 38.9

Crude Protein (NX6.0) 75.0

Water insoluble substances 12,7 Sugar:

free35,5

unrelated urea nitrogen4.0

Acidity2.2

A new nitrogen-containing feed additive can be introduced into the feed and feed mixtures on specialized feed lines to feed and feed mixtures used in feed plants and feed shops.

Claims (2)

1. A method of producing a nitrogen-containing feed additive, consisting in hydrolysis of plant raw material polysaccharides with acid, displacing the resulting hydrolyzate mass with urea, and synthesis of glycosylureas, characterized in that, in order to increase the yield of glycosylureas, hydrolysis of the polysaccharides is carried out at a ratio of plant yield to the vegetable output, in order to increase the yield of glycosylureas, the plant hydrolysis is carried out at a ratio of plant yield to the vegetable output, in order to increase the yield of glycosylureas, the ratio of the plant source to hydrolysis of the polysaccharides will take place at a ratio of plant yield to increase the yield of glycosylureas, in order to increase the yield of glycosylureas with the ratio of the plant raw material to urea; 1.2 until the acid is completely absorbed by the plant material. 2. A method according to claim 1, characterized in that the hydrolysis of the polysaccharides of the plant raw material is carried out at 100-130 ° C for 0.5-2.0 hours.