WO2002065850A1

WO2002065850A1 - A feed additive of nonprotein nitrogen

Info

Publication number: WO2002065850A1
Application number: PCT/CN2002/000109
Authority: WO
Inventors: Zhen Tang
Original assignee: Zhen Tang
Priority date: 2001-02-22
Filing date: 2002-02-22
Publication date: 2002-08-29
Also published as: CN1331922A

Abstract

The present invention relates to a feed additive of nonprotein nitrogen that is mainly consisted of the mother liquor produced in the producing processes of monosodium glutamate. Said mother liquor contains 10%-98% of solid matter and 0.5%-15% of monosodium glutamate, and its pH value is 3.2-7.8. Contents of total sugar and total nitrogen in the solid matter are 1.5%-25% and 1%-35%, respectively. Compared with the prior art, said additive has the advantages of low cost, good quality, good taste, being rich in the raw material, and it can be produced in a large industrial scale.

Description

TECHNICAL FIELD

The invention relates to a feed additive, in particular to a non-protein nitrogen (NPN) feed-additive. Background technique

As we all know, the feeding of ruminants (cow, sheep, etc.), using urea and ammonium salts as nitrogen supplement in the diet, has a history of about 120 years. This application has led to the concept of NPN feed that has certain nutritional value only to ruminants. The application of NP feed is of great significance for the vigorous development of ruminants such as cattle, sheep, deer, and camels. There are many examples of the application of NPN feed additives in China, but its research status. The "Feed Additives Handbook" published by the Chemical Industry Press in April 2000 is like this: "In the past ten years, China has made a large number of urea feed products. Work, but they are still in the research and experimental stage. Due to backward technological routes, high production costs and low benefits, molasses urea and corn urea have not been put into mass production and large-scale application. As a large sugar producing country and protein feed, they are extremely scarce. In China, there is no industrial production of molasses urea. We should fill this gap as soon as possible and vigorously develop industrial production in this field. "

Summary of the Invention

The purpose of the present invention is to provide an NPN feed additive with low production cost, high quality, abundant raw material sources, good product palatability, and large-scale industrial production.

The NPN feed additive provided by the present invention is mainly composed of a glutamic acid mother liquor produced in the monosodium glutamate production industry, wherein the Hi value of the glutamic acid mother liquor is 3.2 to 7. 8, and the solid content is 10% to 98%. The content of total sugar in the material is 1.5% to 25%, the content of total nitrogen is 1% to 35%, and the content of glutamic acid in the glutamic acid mother liquor is 0.5% to 15%. Here, total nitrogen refers to the total amount of nitrogen present in the form of a compound in a substance. Whole sugar refers to the total amount of monosaccharides present in the substance as monosaccharides or polysaccharides or other forms.

In addition, based on the NPN feed additives:

1. Add 2% to 30% urea, 1% to 8% ammonium phosphate, and 2% to 50% sugar cane molasses, so that the prepared NPN feed additive is in the form of molasses urea;

2.Add urea with a content of 2% to 10%, crude salt with a content of 10% to 50%, calcium phosphate with a content of 1% to 10%, sugar cane molasses with a content of 2% to 5%, and a content of 1% ~ 3% zinc sulphate, content of 0.1% ~ 0.8% of copper sulfate, content of 0.001% ~ 0.01% of cobalt sulfate, so that the prepared NPN feed additive is urea molasses licking brick Form

3. Add corn with a content of 40% to 65%, urea with a content of 2% to 15%, and bentonite with a content of 2% to 8%, so that the prepared NPN feed additive is in the form of starch gelatinized urea;

4. Add urea with a content of 10% to 90%, so that the prepared NPN feed additive is in the form of fortified urea; or

5. Add soybean meal with a content of 2% to 95%, so that the NPN feed additive prepared is in the form of nutritious soybean meal.

The production process of monosodium glutamate is as follows. First, the starch is hydrolyzed into starch sugar (also cane molasses, beet molasses), biotin, a small amount of magnesium sulfate, and potassium dihydrogen phosphate are added to prepare the culture material, and the microorganisms are introduced into the glutamic acid culture. fermentation, the process flow bacteria culture was added urea (or ammonia), to obtain mature glutamic acid fermentation broth, domestic isoelectric freezing method used hydrochloric acid (or sulfuric acid) adjusting the PH value to ^{^3.2,} was cooled to 4 ° C, The crystallized glutamic acid is precipitated from the fermentation broth, and the remainder is the glutamic acid mother liquor. The components of the mother liquor include biotin, bacterial cells, organic fermentation metabolites, and a large amount in addition to glutamic acid, urea, and sugar. Chloride or sulfate ion, when NaOH or ammonia is used to return the acidity and alkalinity of the glutamic acid mother liquor to make it close to neutral, the glutamic acid mother liquor also contains a large amount of sodium chloride, ammonium chloride (or ammonium sulfate). These nitrogen and sugar ingredients are suitable for making ruminant food, and glutamic acid itself is the feed The first choice of flavoring materials can improve the palatability of NPN feed; urea is a substance that is definitely considered to have a high protein equivalent and is very promising as an NPN feed resource. Ammonium sulfate: Not only provides crude protein nutrition for ruminants, but also meets the animal's special needs for sulfur nutrition. Ammonium chloride: It is one of the 30 NPN compounds that have entered the practical stage since the 1950s. Organic acid ammonium: After adding it to the ruminant feed diet, its N utilization effect is better.

In addition, the invention patent 90102179. 2 "A method for extracting glutamic acid" expresses that the glutamic acid mother liquor can be concentrated to extract glutamic acid for a second time and increase the yield of glutamic acid by 15%; the publication "Food Industry Science and Technology "No. 3 of 1991" Talking about a method of extracting glutamic acid "expresses the production of monosodium glutamate in our country. When the raw material is from starch, the energy cost of extracting glutamic acid by isoelectric-concentration method can be calculated from The increase of 15% glutamic acid is compensated, and when the glutamic acid mother liquor or glutamic acid mother liquor concentrate is to be comprehensively used, the cost is very low.

The social demand for NPN feed additives is large, and the discharge of glutamic acid mother liquor is also very large. When glutamic acid mother liquor is selected as the raw material, the amount of agricultural urea and grains that can be saved is considerable. Non-toxic, and the process of glutamic acid mother liquor concentration and alkali neutralization is mature. The implementation of the present invention can realize large-scale industrial production. The present invention also expresses one more way of comprehensive utilization of glutamic acid mother liquor, its social benefits And the economic benefits are very obvious. Best Mode of the Invention

The present invention is further described in detail with reference to the following examples: Example 1:

The NPN feed additive of the present invention is mainly composed of glutamic acid mother liquor produced in the monosodium glutamate production industry, and the solid matter is mainly composed of whole sugar and total nitrogen. Their distribution ratio and the glutamic acid mother liquor pH can be as shown in Table 1 below. any type. ― _ Tetraglutamic acid mother liquor PH value 7 6. 8 7. 8 3. 2 Content of solids 10% 50% 10% 98% Content of total sugar in solids 1. 5% 10% 1. 5% 25% solids The content of total nitrogen in the material is 1% 20% 1% 35% The content of glutamic acid in the glutamic acid mother liquor is 0.5% 6% 0. 5% 15% When using, according to the level of solid content, take the above additives 1-5 Added to 100 parts of full-price mixed ration feed consisting mainly of grass powder and straw powder to feed cattle and sheep, and it was observed that the appetite of cattle and sheep increased and they grew well. In the above examples, the total nitrogen is measured by the Kjeldahl method. Total sugar was measured using the Fehling method. Example 2

Urea, ammonium phosphate and sugar cane molasses are added to the glutamic acid mother liquor so that the NPN feed additive prepared is in the form of molasses urea.

Their composition ratio and glutamic acid mother liquor pH can be any of the following Table 1.

Table 2

When making, take the glutamic acid mother liquor and mix it with molasses and ammonium gallate, heat these mixtures and keep them at 55-60 ° C, and add urea to completely dissolve. Spray this liquid molasses urea on the cattle and sheep, and mix them at full price. Feed the cattle and sheep in the feed, and observe that the appetite of the cattle and sheep is increased, and the weight gain is significantly accelerated. Keep it for three months. It can be seen that the temperament and color of the animal are better than the control. Example 3

In order to produce urea molasses licking bricks, neutralize the glutamic acid mother liquor with NaOH before making it, and then add urea, crude salt, sugar cane molasses, calcium phosphate, zinc sulfate, copper sulfate, cobalt sulfate to the glutamic acid mother liquor. So that the prepared NPN feed additive is in the form of urea molasses lick brick.

Their composition ratio and glutamic acid mother liquor pH can be any of the following Table 3. table 3

Example 4

The NPN feed additive prepared by adding urea, corn, and bentonite to the glutamic acid mother liquor is in the form of starch gelatinized urea.

Their composition ratio and glutamic acid mother liquor pH can be any of the following Table 4.

Table 4

When making, first neutralize the glutamic acid mother solution with ammonia water to pH 6.8, mix and stir the dry concentrate of glutamic acid mother solution, urea, and corn meal, warm up and preheat, squeeze and spray under high pressure of 2-3MPa Bar, and then the bar is cut into pellets. When used, adding 100 grams of live-weight cattle according to lOOKg to 250 grams of this product, compared with the soybean cake control group, there is no difference in daily gain and meat yield. Example 5

Urea was added to the glutamic acid mother liquor, and the NPN feed additive prepared was in the form of fortified urea.

Their composition ratio and glutamic acid mother liquor pH can be any of the following Table 5. table 5

When using, mix 1 part of this product into 100 parts of full-price mixed feed of cattle and sheep mainly composed of grass powder and straw powder to feed cattle and sheep. Observe that the appetite of cattle and sheep is increased and the weight gain is significantly accelerated. . Example 6

Soybean meal was added to the glutamic acid mother liquor, and the prepared NPN feed additive was in the form of nutritious soybean meal.

Their composition ratio and glutamic acid mother liquor pH can be any of the following Table 5.

Table 6

When using, mix 1 part of this product into 10 parts of cow and dairy sheep full price mixed feed containing grass powder and straw powder to feed cows and sheep. Observe that the peak period of milk production of cattle and sheep is significantly prolonged. .

Claims

Rights request

1. A non-protein nitrogen feed additive, which is mainly composed of glutamic acid mother liquor produced in the monosodium glutamate production industry, wherein the pH of the glutamic acid mother liquor is 3.2 ~ 7.8, and the solid content is 10%-98% , The content of total sugar in the solid is 1.5% to 25%, the content of total nitrogen is 1% to 35%, and the content of glutamic acid in the glutamic acid mother liquor is 0.5% to 15%.

2. The non-protein nitrogen feed additive according to claim 1, characterized in that urea containing 2% to 30%, ammonium phosphate containing 1% to 8%, and 2% content are added to the glutamic acid mother liquor. ~ 50% sugar cane molasses.

The non-protein nitrogen feed additive according to claim 2, wherein the non-protein nitrogen feed additive is in the form of molasses urea.

4. The non-protein nitrogen feed additive according to claim 1, characterized in that glutamic acid mother liquor is added with urea in an amount of 2% to 10%, crude salt in an amount of 10% to 50%, and an amount of 1%. ~ 10% calcium phosphate, 2% -5% sugar cane molasses, 1% ~ 3% zinc sulfate, 0.1% ~ 0.8% copper sulfate, 0.001% ~ 0.01% cobalt sulfate .

The non-protein nitrogen feed additive according to claim 4, wherein the non-protein nitrogen feed additive is in the form of a urea molasses licking brick.

6. The non-protein nitrogen feed additive according to claim 1, characterized in that corn is added to the glutamic acid mother liquid in an amount of 40% to 65%, urea is included in 2% to 15%, and content is 2%- 8% bentonite.

7. The non-protein nitrogen feed additive according to claim 6, wherein the non-protein nitrogen feed additive is in the form of starch gelatinized urea.

8. The non-protein nitrogen feed additive according to claim 1, characterized in that urea is added to the glutamic acid mother liquor in an amount of 10% to 90%.

9. The non-protein nitrogen feed additive according to claim 8, characterized in that The non-protein nitrogen feed additive is in the form of fortified urea.

10. The non-protein nitrogen feed additive according to claim 1, characterized in that soybean meal is added to the glutamic acid mother liquor in an amount of 2% to 95%.

The non-protein nitrogen feed additive according to claim 10, wherein the non-protein nitrogen feed additive is in the form of a nutritious soybean meal.