CN104970228A - Preparation method for rumen-protected lysine - Google Patents
Preparation method for rumen-protected lysine Download PDFInfo
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Abstract
The invention discloses a preparation method for rumen-protected lysine. The preparation method comprises the following steps: (1) pre-treatment: pre-treating a lysine raw material by using superfine grinding; and (2) preparation: including pill core preparation, initial coating and secondary coating, wherein a pill core adhesive is starch; the coating material is food grade hydrogenated vegetable oil and carnauba wax. The product is strip-type or elliptic in shape. Through detection, the effective component of the rumen-protected lysine in the product can reach up to 60-85%. The process is optimized, including selection of auxiliary materials and selection of all parameters in the preparation process. The rumen-protected lysine with high bioavailability and high stability can be prepared by virtue of the method disclosed by the invention, and the rumen-protected lysine has a good effect in improving the milk yield of dairy cattle.
Description
Technical field
The present invention relates to a kind of lysine, particularly rumen bypass lysine and preparation method thereof.
Background technology
Protein is one of key limiting nutritional labeling in ruminant, and in ruminant animal nutrition, it is a kind of nutritive process of poor efficiency that dietary protein is degraded in cud.Only also differ by high protein ration of feeding in some conditions and improve ruminant production performance surely.In order to reduce the degraded loss of cud internal protein, people adopt various measures to improve the rumen bypass value of protein in daily ration.Research finds, depend merely on the amount increasing rumen bypass protein, might not ensure that domestic animal is increased production, the final biological value of protein to ruminant depends on the amino acid whose value volume and range of product of Gong the absorption occurred in small intestine.
Amino acid rumen bypass technology and amino acid whose ruminally-protected technology; it is made to protect through technical finesse in amino acid exactly; avoid being fermented in cud, degrade and directly enter digested absorption again after small intestine, thus reach the object improving rate of ultilization of amino acid.Rumen-bypass amino acid, also known as rumen protected amino acid (RPAA), is the easiest and direct method of balance Small intestine amino acid.Generally three major types is divided into: the first kind comprises amino acid analogue, derivative and metal-amino acid chelate (as zinc methionine, lysine-zn) etc. according to its mechanism of action.Equations of The Second Kind utilizes polymer coating, carries out physical package quilt as adopted the capsulating materials such as denatured protein, fat, aliphatic acid and calcium carbonate mixture, lipoprotein and long chain fatty acid calcium salt to amino acid.3rd class is amino acid abomasum infusion, wherein utilizes polymer coating to be the main production form of current rumen bypass product.
Large quantity research both domestic and external shows, lysine and methionine be lactating cow feed daily ration synthetic protein based on corn time the first or second limiting amino acid.Therefore, the current research to rumen-bypass amino acid mostly concentrates on this two seed amino acid.When determining Diet Formula, when especially high yield ruminant being needed to the daily ration of the essential amino acid amount (EAA) of higher arrival small intestine (considering the factor of technology and cost), the nutritional need of satisfied modern high yield domestic animal can only be carried out by rumen-bypass amino acid additive.And test shows, adds rumen-bypass amino acid, can not only improve the production performance of ruminant domestic animal in ruminant, and improve the quality of livestock products (milk, meat, hair etc.), there is higher economic benefit and practical value.
Although the effect of rumen-bypass amino acid is recognized, the subject matter that current rumen bypass lysine product exists is: (1) bag is not in place, although some product has also carried out wrapping being processed, treatment effect is not good, and amino acid really can not pass through cud; (2) excessively wrap quilt, although some bag can rumen bypass by product, effectively can not discharge in abomasum and small intestine, thus also not have supplementary amino acid whose effect; (3) product content is low, and some bag be have employed very complicated bag by explained hereafter by product, and have certain effect effect, but content is lower, generally at 30-50%, causes high cost.(4) product is unstable, the wearing and tearing in not resistance to feed manufacturing or spice process and mechanical loss.Good rumen bypass lysine product rumen bypass rate is high, fully can discharge again simultaneously, be beneficial to the utilization of lysine in enteron aisle.The present invention is by Optimization Technology, and the rumen bypass lysine rumen bypass rate prepared is high, and can fully can discharge at abomasum and enteron aisle, and the bioavilability that improve lysine can significantly improve the output of milk and the dairy food quality of milk cow.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of preparation method of rumen bypass lysine.
Technical scheme of the present invention is as follows:
(1) pretreatment
Lysine is first carried out ultramicro grinding pretreatment, screening; Feed particles is crossed conference and is reduced bag by effect.
(2) ball core preparation:
Pretreated lysine raw material is placed in trough type mixing machine with starch mix, adds and throw formation spheric granules in circular knitting machine, then the spheric granules throwing circle is dropped in boiling drier and carry out drying, obtain ball core.
First bag quilt:
By food-grade hydrogenated vegetable oil in 65-100 DEG C of fusing, the ball core prepared is placed in fluidized coating machine, starts seed-coating machine, then will pass through spray system introducing seed-coating machine at the bottom of seed-coating machine after the fusing of food-grade hydrogenated vegetable oil, for the first time quilt is wrapped to ball core, obtains and just wrap by middle product 1.
Secondary dressing:
Waved whole grain by middle product 1 by 20-30 order mesh screen by just wrapping, 40 orders are manual to be sieved; Particle after screening is placed in granulating coated machine, and adopting end spray mode, is that packaging material carries out dressing with the Brazil wax of fusing;
Product appearance is bar shaped or ellipse, and after testing, finished product rumen bypass lysine active ingredient can up to 60%-85%.
First carrying out ultramicro grinding pretreatment as preferred described step (1) lysine is 80-200 order;
In preparing as preferred described step (2) ball core, the addition of starch is the 1%-10% of ball core weight.
The spheric granules formed in described step (2) ball core preparation process is 30-40 order.
Be: the spheric granules throwing circle is added boiling drier, air intake 80-85 DEG C, dry 0.5-1 hour that on-line period detects moisture and is not more than 3% as drying in preferred described step (2) ball core preparation process.
As preferred described step (2) for the first time bag by for: hydrogenated vegetable oil is in 65-100 DEG C of fusing, the mass ratio of ball core and hydrogenated oil and fat is 2.5-12.5:1, start fluidized coating machine, adjustment EAT is 45-50 DEG C, hydrogenated vegetable oil is carried out isolation coat by spraying system at the bottom of seed-coating machine to ball core, until all spraying is complete, continue fluidized drying 30-60 minute, obtain just wrapping by middle product 1;
Be: with oscillating granulator, undertaken waving whole grain by 20-30 order mesh screen by middle product 1 by just wrapping that 40 orders are manual to be sieved as preferred described step (2) secondary dressing; Particle after screening is placed in multi-functional granulating coated machine, and spray mode in the employing end is that packaging material carries out dressing with the Brazil wax of fusing, and just bag is 3.5-16:1 by the mass ratio of middle product 1 and Brazil wax.Coating parameter: EAT: < 25 DEG C, temperature of charge 35-40 DEG C, atomizing pressure 0.2-0.25MPa, pump stream 15-30L, process 30-45min; After dressing terminates, 40 order normal manual sieve screenings, obtain the above finished product of 40 order: rumen bypass lysine.
Usefulness of the present invention is:
1. bag more stable by effect, be beneficial to preservation, and in resistance to feed manufacturing process wearing and tearing and feed granulating process in high temperature.
2., by repeatedly wrapping quilt, improve the rumen bypass rate of active ingredient.
3. Available Amino Acids content is higher, can reduce the use cost of rumen-bypass amino acid.
4. the dissolution rate in ruminant abomasum and small intestine is higher, and stripping is faster, and bioavilability is high.
5. under having found special prescription, there is particularly preferred bioavilability, and cow producing milk performance has been had an unexpected effect.
Detailed description of the invention
embodiment 1:
1. pretreatment
By L lysine HCL (source: COFCO), first carry out ultramicro grinding pretreatment, screening, first cross 80 mesh sieves, after 200 mesh sieves, 80-200 object is required material; Raw material is crossed conference without pulverized particles and is reduced bag by effect;
2. its preparation method concrete steps are:
Step one: prepared by ball core
The rear 60kg L lysine HCL that will pulverize and sieve is placed in trough type mixing machine with 2kg starch and mixes, add again and throw in circular knitting machine, by throwing circular knitting machine spray gun, purified water is added, until product formation 30-40 order spheric granules, the spheric granules throwing circle is added in boiling drier, EAT 80 DEG C, carries out drying to spheric granules, drying time 0.5-1 hour, obtain ball core, on-line period detects moisture and is not more than 3%.
Step 2: wrap quilt for the first time
Above-mentioned 62kg ball core is added in fluidized coating machine, by 16kg food-grade hydrogenated vegetable oil (source: palm oil industry hydrogenation, producer: Jiaxing Hu Dong daily-use chemical industry company, model: fusing point 58 DEG C) in 80 DEG C of fusings, start fluidized coating machine, adjustment EAT is 45-50 DEG C, hydrogenated vegetable oil is carried out isolation coat by spraying system at the bottom of seed-coating machine to ball core, until all spraying is complete, continue fluidized drying 30-60 minute, obtain just wrapping by middle product 1;
Step 3: secondary bag quilt
Waved whole grain by middle product 1 YK160 series oscillating granulator by 20 order nets by just wrapping, 40 orders sieve; The above particle of 40 order after screening is placed in the multi-functional granulating coated machine of DPL60/120, adopts end spray mode, carry out dressing with the Brazil wax (producer: Jiaxing Hu Dong daily-use chemical industry company, model: fusing point 82 DEG C) of 22kg fusing for packaging material.
Coating parameter: EAT: 20 DEG C, temperature of charge 35-40 DEG C, atomizing pressure 0.2-0.25MPa, pump stream 15L/h process 30min; After dressing terminates, 40 mesh sieves divide, and obtain the above finished product of 40 order: rumen bypass relies base acid.
Rumen bypass relies the outward appearance of base acid to be bar shaped, and after testing, finished product rumen bypass lysine active ingredient can up to 60%.
embodiment 2:
1. pretreatment
By L lysine HCL (source: COFCO), first carry out ultramicro grinding pretreatment, screening, first cross 80 mesh sieves, after 200 mesh sieves, 80-200 object is required material; Raw material is crossed conference without pulverized particles and is reduced bag by effect;
2. its preparation method concrete steps are:
Step one: prepared by ball core
The rear 65kg L lysine HCL that will pulverize and sieve is placed in trough type mixing machine with 5kg starch and mixes, add again and throw in circular knitting machine, by throwing circular knitting machine spray gun, purified water is added, until product formation 30-40 order spheric granules, the spheric granules throwing circle is added in boiling drier, EAT 85 DEG C, carries out drying to spheric granules, drying time 0.5-1 hour, obtain ball core, on-line period detects moisture and is not more than 3%.
Step one: wrap quilt for the first time
Above-mentioned 70kg ball core is added in fluidized coating machine, by 18kg food-grade hydrogenated vegetable oil (source: palm oil industry hydrogenation, producer: Jiaxing Hu Dong daily-use chemical industry company, model: fusing point 58 DEG C) in 65 DEG C of fusings, start fluidized coating machine, adjustment EAT is 45-50 DEG C, hydrogenated vegetable oil is carried out isolation coat by spraying system at the bottom of seed-coating machine to ball core, until all spraying is complete, continue fluidized drying 30-60 minute, obtain just wrapping by middle product 1;
Step 3: again wrap quilt
Waved whole grain by middle product 1 YK160 series oscillating granulator by 30 order nets by just wrapping, 40 orders sieve; The above particle of 40 order after screening is placed in the multi-functional granulating coated machine of DPL60/120, adopts end spray mode, carry out dressing with the Brazil wax (producer: Jiaxing Hu Dong daily-use chemical industry company, model: fusing point 82 DEG C) of 12kg fusing for packaging material.
Coating parameter: EAT: 22 DEG C, temperature of charge 35-40 DEG C, atomizing pressure 0.2-0.25MPa, pump stream 15L/h process 30min; After dressing terminates, 40 mesh sieves divide, and obtain the above finished product of 40 order: rumen bypass relies base acid.
Rumen bypass relies the outward appearance of base acid to be bar shaped, and after testing, finished product rumen bypass lysine active ingredient can up to 65%.
embodiment 3:
1. pretreatment
By L lysine HCL (source: COFCO), first carry out ultramicro grinding pretreatment, screening, first cross 80 mesh sieves, after 200 mesh sieves, 80-200 object is required material; Raw material is crossed conference without pulverized particles and is reduced bag by effect;
2. its preparation method concrete steps are:
Step one: prepared by ball core
The rear 70kg L lysine HCL that will pulverize and sieve is placed in trough type mixing machine with 4kg starch and mixes, add again and throw in circular knitting machine, by throwing circular knitting machine spray gun, purified water is added, until product formation 30-40 order spheric granules, the spheric granules throwing circle is added in boiling drier, EAT 80 DEG C, carries out drying to spheric granules, drying time 0.5-1 hour, obtain ball core, on-line period detects moisture and is not more than 3%.
Step 2: wrap quilt for the first time
Above-mentioned 74kg ball core is added in fluidized coating machine, by 16kg food-grade hydrogenated vegetable oil (source: palm oil industry hydrogenation, producer: Jiaxing Hu Dong daily-use chemical industry company, model: fusing point 58 DEG C) in 100 DEG C of fusings, start fluidized coating machine, adjustment EAT is 45-50 DEG C, hydrogenated vegetable oil is carried out isolation coat by spraying system at the bottom of seed-coating machine to ball core, until all spraying is complete, continue fluidized drying 30-60 minute, obtain just wrapping by middle product 1;
Step 3: secondary bag quilt
Waved whole grain by middle product 1 YK160 series oscillating granulator by 20 order nets by just wrapping, 40 orders sieve; The above particle of 40 order after screening is placed in the multi-functional granulating coated machine of DPL60/120, adopts end spray mode, carry out dressing with the Brazil wax (producer: Jiaxing Hu Dong daily-use chemical industry company, model: fusing point 82 DEG C) of 10kg fusing for packaging material.
Coating parameter: EAT: 20 DEG C, temperature of charge 35-40 DEG C, atomizing pressure 0.2-0.25MPa, pump stream 15L/h process 30min; After dressing terminates, 40 mesh sieves divide, and obtain the above finished product of 40 order: rumen bypass relies base acid.
Rumen bypass relies the outward appearance of base acid to be bar shaped, and after testing, finished product rumen bypass lysine active ingredient can up to 70%.
embodiment 4:
1. pretreatment
By L lysine HCL (source: COFCO), first carry out ultramicro grinding pretreatment, screening, first cross 80 mesh sieves, after 200 mesh sieves, 80-200 object is required material; Raw material is crossed conference without pulverized particles and is reduced bag by effect;
2. its preparation method concrete steps are:
Step one: prepared by ball core
The rear 85kg L lysine HCL that will pulverize and sieve is placed in trough type mixing machine with 2kg starch and mixes, add again and throw in circular knitting machine, by throwing circular knitting machine spray gun, purified water is added, until product formation 30-40 order spheric granules, the spheric granules throwing circle is added in boiling drier, EAT 80 DEG C, carries out drying to spheric granules, drying time 0.5-1 hour, obtain ball core, on-line period detects moisture and is not more than 3%.
Step 2: wrap quilt for the first time
Above-mentioned 87kg ball core is added in fluidized coating machine, by 7kg food-grade hydrogenated vegetable oil (source: palm oil industry hydrogenation, producer: Jiaxing Hu Dong daily-use chemical industry company, model: fusing point 58 DEG C) in 80 DEG C of fusings, start fluidized coating machine, adjustment EAT is 45-50 DEG C, hydrogenated vegetable oil is carried out isolation coat by spraying system at the bottom of seed-coating machine to ball core, until all spraying is complete, continue fluidized drying 30-60 minute, obtain just wrapping by middle product 1;
Step 3: secondary bag quilt
Waved whole grain by middle product 1 YK160 series oscillating granulator by 20 order nets by just wrapping, 40 orders sieve; The above particle of 40 order after screening is placed in the multi-functional granulating coated machine of DPL60/120, adopts end spray mode, carry out dressing with the Brazil wax (producer: Jiaxing Hu Dong daily-use chemical industry company, model: fusing point 82 DEG C) of 6kg fusing for packaging material.
Coating parameter: EAT: 20 DEG C, temperature of charge 35-40 DEG C, atomizing pressure 0.2-0.25MPa, pump stream 15L/h process 30min; After dressing terminates, 40 mesh sieves divide, and obtain the above finished product of 40 order: rumen bypass relies base acid.
Rumen bypass relies the outward appearance of base acid to be bar shaped, and after testing, finished product rumen bypass lysine active ingredient can up to 60%.
embodiment 5: contrast test
This comparative example provides a kind of method that other technology prepares rumen-bypass amino acid:
1. pretreatment
Amino acid (lysine) first carries out ultramicro grinding pretreatment (micronizer), screening (ZS-800 shaking screen) (80-200 order);
Capsulating material: food-grade hydrogenated vegetable oil
2. its preparation method concrete steps are:
Material is prepared: food-grade hydrogenated vegetable oil (source: palm oil industry hydrogenation, producer: Jiaxing Hu Dong daily-use chemical industry company, model: fusing point 58 DEG C), in conduction oil Cooling or heating jar 100 DEG C fusing, is placed in 75 DEG C of water bath heat preservations; Added by 60kg amino acid starting material through ultramicro grinding in the 40kg food hydrogenated vegetable oil melted, emulsify at a high speed cutter rotating speed 2000rpm stirs and shears, and obtains homogeneous fluid after 20min; This homogeneous fluid is crossed colloid mill and be placed on 75 DEG C of water bath heat preservations for one time, be stirred to spraying and terminate.
Equipment prepares: main equipment is LPG-500 type spray drying tower.
Optimum configurations: EAT 5-10 DEG C, leaving air temp 15-18 DEG C, atomisation pressure 2.0-2.5MPa;
Product granularity: control product granularity at 10-40 order by the size controlling to spray in atomisation pressure and spray gun sheet.
3, sum up: protective lysine dissolution rate in abomasum and small intestine of this explained hereafter is low, and the high-temperature process of not resistance to feed manufacturing process.
embodiment 6: contrast test
The rumen bypass ability of rumen-bypass amino acid weighs the important indicator of its action effect.This effect can be weighed by measuring rumen bypass rate.Measure nutriment at present in the world and mainly contain intracorporal method, half intracorporal method, in vitro method etc. in the method for rumen-undegradable rate.In vitro method is simple to operate, easily repeats, and can weigh the rumen bypass ability of rumen-bypass amino acid better.
Test the 60% rumen bypass lysine product (selection has the product of certain public praise) of the 60% rumen bypass lysine selecting the present invention to produce, other company sold on the market, measure it respectively and simulate Retention in artificial saliva and rumen fluid in vitro, the results are shown in Table 1.
The Retention of the different rumen bypass lysine products of table 1 after artificial saliva and rumen fluid
As can be seen from Table 1 after artificial saliva and Diet With Artificial Rumen Fluid cultivate certain hour, the retention ratio of the rumen bypass lysine product that the present invention produces, higher than the rumen bypass lysine product that market is sold on the market, shows that method of the present invention can make lysine better pass through cud.
embodiment 7:
The present embodiment determines the impact on lactation milk production of cow in mid-term and milk composition of rumen bypass lysine that the present invention obtains.
18 healthy the first tire Chinese Holstein cows are selected in test, according to the principle that age, parity, the output of milk, lactation period are close, match, are divided into three groups at random, be respectively control group, test 1 and 2 group, often organize 6.All test milk cows are raised all separately, preliminary trial period 7d, prerun terminates rear beginning formal test, the concentrate supplement that control group fed cattle farm routine uses, test 1 group of 60% rumen bypass lysine that supplementary feeding 6g/ head the present invention produces when feeding first time in the morning every day, test the 60% rumen bypass lysine (selection has the product of certain public praise) of 2 groups of other companies that supplementary feeding 6g/ head is sold on the market when feeding, just the phase of trying is 30d first time in the morning every day.Raising dairy cattle mode is that biserial is raised breechblock system formula, and tank is freely drunk water.
Feeding manner is artificial feeding, and the concentrated feed three times of feeding day, milks three times, every morning and afternoon feeding terminate rear bulk storage to sports ground.Test milk cow adopts pipeline milking machine to milk, the individual record output of milk of every every day, every three days in noon every cow head milk terminate after, milk is stirred, milk in the middle of drawing by milk sampler, be sampled as 200ml at every turn, measure butterfat percnetage, lactoprotein with milk composition automatic analyzer.Result of the test is in table 2 and table 3.
Table 2 rumen bypass lysine is on the impact of milk production of cow
| Group | Average milk production (kg/ days) |
| Control group | 23.26 |
| Test 1 group | 26.85 |
| Test 2 groups | 25.12 |
From table 2, compared with control group, the milk production of cow of supplementary feeding rumen bypass lysine is significantly improved, and the milk production of cow of rumen bypass lysine prepared by the present invention that feeds is higher than the milk cow of other rumen bypass lysine product of feeding.
Table 3 rumen bypass lysine is on the impact of milk composition
| Group | Lactoprotein (%) | Butterfat percnetage (%) |
| Control group | 3.28 | 3.25 |
| Test 1 group | 3.58 | 3.65 |
| Test 2 groups | 3.33 | 3.46 |
From table 3, compared with control group, supplementary feeding rumen bypass lysine milk cow can improve protein ratio and the butterfat percnetage of milk.Lactoprotein in the milk cow institute galactopoiesis of rumen bypass lysine prepared by the present invention that feeds and butterfat percnetage are all higher than the milk cow of other rumen bypass lysine product of feeding.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (3)
1. a preparation method for rumen bypass lysine, is characterized in that its production stage is as follows:
(1) pretreatment:
Lysine is first carried out ultramicro grinding pretreatment, screening;
(2) prepare:
Prepared by ball core:
Pretreated lysine raw material is placed in trough type mixing machine with starch mix, adds and throw formation spheric granules in circular knitting machine, then the spheric granules throwing circle is dropped in boiling drier and carry out drying, obtain ball core;
First bag quilt:
Ball core is dropped into fluidized coating machine, by spray system introducing seed-coating machine at the bottom of seed-coating machine after separately food-grade hydrogenated vegetable oil being melted, for the first time quilt is wrapped to ball core, obtains and just wrap by middle product 1;
Secondary bag quilt:
Being waved whole grain by middle product 1 by screen cloth by just wrapping, sieving by hand; Particle after screening is placed in granulating coated machine, and adopting end spray mode, is that packaging material carries out dressing with the Brazil wax of fusing;
The product appearance finally obtained is bar shaped or ellipse, and its rumen bypass lysine active ingredient can up to 60%-85%.
2. the preparation method of rumen bypass lysine according to claim 1, is characterized in that:
Described step (1) lysine selects L lysine HCL, first carries out comminution pretreatment, reaches 80-200 order;
In described step (2) ball core preparation process, starch accounts for the 1%-10% of ball core quality;
The spheric granules formed in described step (2) ball core preparation process is 30-40 order;
It is 65-100 DEG C that described step (2) is wrapped for the first time by the melt temperature of food-grade hydrogenated vegetable oil in process;
It is 2.5-12.5:1 that described step (2) is wrapped for the first time by the interpolation mass ratio of ball core and food-grade hydrogenated vegetable oil in process;
Described step (2) secondary bag is just wrapped in process is waved whole grain by middle product 1 through 20-30 mesh sieve, 40 mesh sieve hand sievings;
Described step (2) secondary bag is just wrapped by the mass ratio of middle product 1 and Brazil wax in process be 3.5-16:1;
Described step (2) secondary bag by the parameter of seed-coating machine in process is: EAT <50 DEG C, temperature of charge < 45 DEG C, atomizing pressure 0.2-0.25MPa, pump stream 15-30L, process 30-45 minute.
3. the rumen bypass lysine for preparing of method described in claim 1-2.
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Application publication date: 20151014 |