KR100317846B1 - Method for preparing fatty acid calcium salts for feed additives - Google Patents

Abstract

The present invention relates to a method for preparing fatty acid calcium salts for feed additives, and to a method for preparing fatty acid calcium salts, comprising adding lipase, slaked lime, water, and an anti-caking agent to a liquid fat or oil. The anti-entanglement agent may include powder silica, zeolite, talc, diatomaceous earth, kaolin, and among them, the effect of powder silica and diatomaceous earth was particularly high in terms of solidification of the reaction product, ease of powdering operation, and use as a feed additive. The liquid fat and oil content is 58 to 87.45% by weight, the content of the anti-entanglement agent is 0.5 to 1.5% by weight based on the total weight, 10 to 30% by weight of hydrated lime, 0.05 to 0.5% by weight of lipase and 2 to 10% by weight of water. Use%.

The fatty acid calcium salt for feed additives prepared according to the present invention is a protected fat which is rapidly decomposed into fatty acids and calcium in the rumen, and has a high content of unsaturated fatty acids such as linoleic acid, linolenic acid and arachidonic acid, which are essential fatty acids. . In addition, there is almost no phenomenon of sticking to the grinder during grinding, it is easy to grind without going through the heating and dehydration step, it is easy to add to the feed, it is a high quality feed additive that does not produce an unpleasant smell because the fat is not rancid.

Description

Production Method of Fatty Acid Calcium Salts for Feed Additives

The present invention relates to a method for producing a fatty acid calcium salt for feed additives. More specifically, the present invention adds additional heating and dehydration processes to prevent the oxidation of fatty acids possessed by the conventional methods of preparing fatty acid calcium salts for feed additives and the phenomenon of crushing due to sticking to the grinder during grinding. As a problem to be solved, the present invention relates to a method for producing a fatty acid calcium salt for a feed additive without fatty acid not being oxidized and without heating and dehydration.

The development of dairy management requires improvement of the nutritional and feeding environment and the livestock genetics. In terms of nutrition, the existing forage and grain feed alone do not provide enough nutrients. Therefore, in order to increase the amount of fat and milk fat of livestock, liquid Uji fat is added to dairy feed or fatty acid calcium salt is used. Has been. However, conventional methods for producing fatty acid calcium salts include metathesis methods in which an aqueous calcium salt solution is reacted with fatty acid alkali metals obtained by saponification of fats and oils, or direct methods in which calcium oxide or slaked reacts with free fatty acids. Known. However, all of the above methods require high-temperature and high-pressure work processes. When high fats and fats having high unsaturated fatty acids are used as raw materials, the oxidation reaction of fatty acids proceeds rapidly, resulting in rapid oxidation of fatty acid calcium salts. It produces a sour smell and is likely to adversely affect the menstrual metabolism of livestock. In order to solve this problem, Japanese Patent Laid-Open Publication No. Hei 2-234684 prepares fatty acid calcium salts by adding and stirring limestone, lipase and water to the liquid fat to stir and use them as industrial raw materials or feeds. Korean Patent Publication No. 94-778 also describes a method for preparing fatty acid calcium salts by adding lipase to palm oil to decompose and then separating only fatty acids and reacting with calcium hydroxide. By using the above methods, the reaction can proceed at room temperature (about 25 ° C. to about 40 ° C.), thereby obtaining a product having little oxidation of unsaturated fatty acids.

However, the above-described methods for preparing fatty acid calcium salts solve the problem of oxidizing fatty acids by proceeding the reaction at room temperature, but the final product after the reaction is not completely solidified and does not grind well because it adheres well to the grinder when crushed by a grinder. There is a difficulty in powdering, and in addition, the final product is washed with water, heated and dehydrated to obtain a solid product, and then powdered. Therefore, the above manufacturing methods have to add a process for additional heating and dehydration after the reaction is completed for the sake of powdering, and the manufacturing step is complicated and the manufacturing cost is high. There was a disadvantage that can not be excluded at all the problem of oxidation.

Therefore, the present invention enables the fatty acid calcium salt prepared using the lipase as described above to be directly transferred to the grinding process without undergoing a separate heating and dehydration step, thereby oxidizing the fatty acid by a simpler manufacturing process than the prior art. It is an object of the present invention to provide a method for preparing a fatty acid calcium salt for a feed additive, which also ensures the ease of powdering.

It is also an object of the present invention to provide a method for producing fatty acid calcium salts for feed additives, which is useful for preventing environmental pollution such as water pollution caused by waste oil by refining waste soybean oil or the like from homes or chicken stores.

In order to achieve the above object, in the present invention, in the method for preparing fatty acid calcium salt by adding lipase, hydrated lime and water to the liquid fat and stirred at room temperature, a specific amount of anti-caking agent, in particular A specific amount of powdered silica and diatomaceous earth are added to the mixture, followed by stirring.

Examples of the liquid fats and oils include vegetable fats and oils such as soybean oil, corn oil and palm oil, animal fats and oils such as tallow or hardened oil and fish oil. Moreover, after melt | dissolving the waste oil from a home, a chicken shop, etc. by heating, it can also be filtered and used.

The anti-entanglement agent used in the present invention includes powdered silica, zeolite, talc, diatomaceous earth, kaolin and the like. Preferably, silica and diatomaceous earth are particularly effective in terms of solidification of the reaction product, ease of powdering operation, and use as a feed additive. The amount of the anti-entanglement agent is preferably about 0.5 to 1.5% by total weight. When the amount of powder silica or diatomaceous earth was added below 0.5%, the effect was weak, and when it was added above 1.5%, there was an unsuitable problem as a feed additive.

As lipases, which are enzymatically classified as triacylglycerolacylhydrolase, lipases derived from animals and plants, molds, bacteria, and the like may also be used.

The addition of water, slaked lime, anti-entanglement agent and lipase to the fat or oil may be in any order, but it is more effective to add the lipase after dispersing and dissolving it in water. The reaction time may vary depending on the type of fats and oils, the titer of the lipase used, and the amount of each component added.

In more detail, the manufacturing method of the present invention is first added to the mixing tank, but when the liquid fat or oil is used at room temperature, if the solid fat at room temperature to dissolve through a slight heating (about 30 ~ 40 ℃) Put it in the mixing tank. The amount of fats and oils does not need to be specified, and the amount of fats and oils except the addition amount of powder silica, diatomaceous earth, and slaked lime as a lipase, water, and an anti-entanglement agent becomes the addition amount of an oil-fat. It is usually about 58 to 87.45% by weight. The amount of water is added in small amounts so that no separate step is required to separate the water from the final product. The amount of addition is preferably about 2 to 10% by weight based on the total amount, and the amount of slaked lime is preferably adjusted so that excess calcium is not produced in the reaction product. If the amount is too small, the amount of unreacted glycerides is It is more than the amount, the quality is degraded. Specifically, it is preferable to use about 10 to 30% by weight. Lipase is added in an amount of about 50 KLU / g (KLU: Kilo Lipase Unit) is added by 0.05 to 0.5% by weight based on the total weight. It is preferable to use 0.5-1.5 weight% of amounts of anti-entanglement agents. When all reactants are added, the mixture is stirred and mixed at an appropriate speed. About 30 minutes after the addition of the reactants, the reaction starts, and fatty acid calcium salts are formed and solidification gradually begins. After about 1 hour, stirring can no longer be performed, and if left at this for about 24 to 48 hours, it solidifies completely.

In more detail, the reaction mechanism is enzymatically decomposed into lipase to decompose the fatty acid into glycerin, followed by the reaction of the fatty acid with calcium hydroxide, hydrated lime to produce a solidified fatty acid calcium salt.

After removing the solidified fatty acid calcium salt for feed additives into an appropriate size mold, it is first milled to a particle size of about 50 mm with a hammer mill, and then secondly milled to a particle size of about 2 mm, and further milled to a final product. Fatty acid calcium for feed additive in the form of phosphorus powder is obtained. At this time, in order to improve palatability as a feed additive, flavoring agents, such as molasses, can also be added further.

Since the fatty acid calcium salt for feed additive prepared according to the present invention does not undergo a heating step, the content of linoleic acid, linolenic acid and arachidonic acid, which are essential fatty acids, is very high as compared to the conventional manufacturing method, and has high utility as a feed additive.

When the fatty acid calcium salt for feed additives prepared in this way is used in the mixed feed for dairy cows, it is 1 to 2% for normal non-dairy cows feed, 3 to 5% for special feed for high-performance cows, and 3 to 5 for feed for beef cattle. It is good to add in the amount of%.

When used in a ranch, the amount of addition varies depending on the flow rate.If the flow rate is 20 kg or less, the flow rate is 100 to 200 g / day, for the flow rate 20 to 25 kg, 200 to 300 g / day, and for the flow rate 25 to 30 kg, the flow rate is 300 to 400 g / day. If more than 30kg add about 400 ~ 500g / day. When the fatty acid calcium salt for feed additive of the present invention is added to and used in the feed, the milk production and the fat content of the milk can be improved.

Hereinafter, the present invention will be described in detail with reference to Examples, but the scope of the present invention is not limited thereto. Unless stated otherwise in this specification,% refers to weight percent.

<Example 1>

To the blending tank, 78.9 kg of soybean oil, 5 kg of water, 1 kg of powdered silica, 0.1 kg of commercially available lipase derived from microorganisms (activity value: 50 KLU / g, * KLU: Kilo Lipase Unit), and 15 kg of hydrated lime were added, and mixed and stirred at room temperature. After 30 minutes, the reaction started and began to solidify slowly and left at room temperature for about 24 hours to completely solidify. Subsequently, the resultant was milled to a particle size of 50 mm or less with a hammer mill, and then secondly milled to a particle size of 2 mm or less, and further ground to obtain a fatty acid calcium salt for a feed additive in powder form. Table 1 shows the results of analyzing the components, melting point and calories of the obtained fatty acid calcium salts for feed additives. In addition, the composition of fatty acids is shown in Table 2.

<Example 2>

In this example, the waste oil collected at the chicken store was purified and used as a maintenance material. In the refining process, first, 100Kg of waste oil is put into a reactor with a heater, heated to about 40 ° C, dissolved, and filtered by stirring with a 35 mesh sieve to filter out the residue contained in the waste flow rate, and then dewatered to separate water and oil. Cooling to room temperature gave purified oils and fats.

Fatty acid calcium salt for feed additives was prepared in the same manner as in Example 1 using the above-mentioned fats and oils.

<Example 3>

Instead of using soybean oil, fatty acid calcium salt for feed additive was prepared in the same manner as in Example 1 using palm oil. The prepared fatty acid calcium salt for feed additives hardly adhered to the grinder when pulverized, and a fine powder product was obtained, and there was no unpleasant odor caused by oxidation of fatty acids.

<Example 4>

Instead of soybean oil, a fatty acid calcium salt for feed additive was prepared in the same manner as in Example 1, except that commercially available tallow was warmed and dissolved at 40 ° C. The prepared fatty acid calcium salts for feed additives hardly adhered to the pulverizer during grinding, yielded fine powder products, and did not produce an unpleasant odor caused by oxidation of fatty acids.

Example 5

Fatty acid calcium salt for feed additive was prepared in the same manner as in Example 1 except that fish oil was used instead of soybean oil. The prepared fatty acid calcium salts for feed additives hardly adhered to the pulverizer during grinding, yielded fine powder products, and did not produce an unpleasant odor caused by oxidation of fatty acids.

<Example 6>

Fatty acid calcium salt was prepared in the same manner as in Example 1, except that diatomaceous earth was used as the anti-entanglement agent, and a result similar to that of Example 1 could be obtained.

<Comparative Example 1-5>

Fatty acid calcium salt for feed additives was prepared in the same manner as in Example 1 except that gelatin, collagen, alpha potato starch, alpha tapioca starch, and guar gum were used as anti-entanglement agents. After completion of the reaction, when observed with the naked eye, the final product did not completely solidify, and when touched by hand, the final product stuck to the hand. Did.

Comparative Example 6

Fatty acid calcium salt for feed additive was prepared in the same manner as in Example 1 except that no entanglement agent was used. The final product was not completely solidified, and the phenomenon of sticking to the grinder occurred remarkably and could not be crushed by the grinder.

The method for preparing a fatty acid calcium salt for feed additives of the present invention eliminates the phenomenon of sticking to the pulverizer even when pulverized immediately after the stirring reaction, so that the pulverization is easily performed without undergoing the heating and dehydration step. It simplifies the manufacturing process and lowers the manufacturing cost. And ground particles are suitable for high and feed. In addition, since the fat is not rancid because it does not undergo a heating step, it has high palatability as a good feed additive that does not have an unpleasant smell. Moreover, the fatty acid calcium salts for feed additives prepared according to the present invention are stable in neutral and do not cause degradation by microorganisms in ruminants, for example, cows (Bypass), and rapidly in fatty acids. As a protected fat that is decomposed into calcium and absorbed, essential fatty acids have a high content of unsaturated fatty acids such as linoleic acid, linolenic acid, and arachidonic acid. In addition, the melting point is 104 ℃ does not melt when manufacturing the feed such as pellets has the advantage that does not adversely affect the pellet quality.

Claims (2)

58-87.45% by weight of liquid fat, 0.05-0.5% by weight of lipase, 10-30% by weight of hydrated lime, 2-10% by weight of water, 0.5-1.5% by weight of at least one of powdered silica and diatomaceous earth as anti-entanglement agents and mixed at room temperature , A method of producing a fatty acid calcium salt for a feed additive, characterized in that the powder is reacted with stirring after heating and dehydration. The method of claim 1, wherein the reaction time is 24 hours to 48 hours.