KR970009912B1 - A method for preparing a substitute milk using soy bean meal - Google Patents

Abstract

The invention provides an economical method to produce a milk replacer by using soybean refuse which is an economical protein source but was unsuitable as milk replacer. The milk replacer is obtained by: grinding soybean refuse to reduce particle size; bleaching and drying the grinded soybean refuse; adding necessary nutrients. This method improves the color, the flavor and the solubility of soybean refuse such that it can be used in place of dried milk powder.

Description

Manufacturing method of substitute oil using soybean meal

The present invention relates to a method for producing a substitute oil using soybean meal. More specifically, it relates to a method for processing soybean meal into an economical substitute that can be used as a substitute for dry milk powder, which is a cheap and good source of protein but has not been used as a substitute for raw milk.

Soybeans are excellent in nutrition because they contain 40 to 47% protein, 17 to 21% fat and 30% carbohydrate. At present, the main processed product of soybean is cooking oil, and in its production, defatted soy bean meal 0 (SBM) is produced as a by-product, most of which is used as a raw material of the blended sample.

However, since soybean meal contains more than 50% of crude protein, it is one of the cheapest protein sources. Therefore, it is very economically desirable to manufacture a substitute oil by processing it, and replaces the import of vegetable protein, which is mostly dependent on imports. You can also expect the effect. Moreover, as the price difference between soybean and soybean meal produced after extracting the solvent therefrom gradually increases, the demand for a processing method for soybean meal for food is gradually increased.

By the way, soybean meal, the main by-product of cooking oil production, is inferior in terms of nutrition as a protein source of substitute oil, while most of the protein is denatured when it is oiled, the color turns yellowish brown, soybean smells, and molecular weight increases. It does not dissolve well in water and has an unsuitable surface for use as a substitute.

The present inventors earnestly researched to improve the inadequate aspect of not using the soybean meal for food, by introducing a bleaching process and increasing the solubility process during the processing of soybean meal, so that the color, odor and solubility improved the substitute oil The discovery of the fact that it can be produced led to the completion of the present invention.

Accordingly, it is an object of the present invention to provide a method of processing into a substitute oil by improving the color and smell and solubility of soybean meal.

Another object of the present invention is to provide a substitute oil which can be used as a substitute for dry milk powder prepared by the above method.

This object of the present invention can be achieved by a process for producing a substitute oil by first grinding the soybean meal to reduce its size, then bleaching and drying and then mixing with the required various nutrients.

Hereinafter, the present invention will be described in detail.

Soybean meal is first subjected to size reduction procedures for processing into a substitute. This process involves cutting a soybean meal with a thin and sharp knife, crushing by applying an extruding force to a particle using a roller mill, and shearing by applying cutting and crushing together. Using impact mills or jet mills to impinge any floating particles with heavy machines such as sieves or hammers, or by impact grinding can do.

Soybean meal with reduced particle size by such a method is then bleached. The bleaching process is performed at 50 ° C. to 80 ° C. using a bleaching agent such as chlorine gas (Cl ₂ ), hydrogen peroxide (H ₂ O ₂ ), chlorine dioxide (ClO ₂ ), sodium hypochlorite (NaClO), or the like. For example, a bleaching method using chlorine gas, which is stirred by adding 10 times the solvent to the soybean meal and blowing chlorine gas from which moisture is removed, adds a hydrogen peroxide solution of 3% to 5% hydrogen peroxide, and bleaches the hydrogen peroxide by stirring while reflux cooling. Bleaching method used, 10 times solvent in soybean meal, chlorine dioxide for 1 hour while supplying chlorine dioxide, bleaching method using chlorine dioxide, 5% sodium hypochlorite was added and stirred for 2 hours, sodium hypochlorite Bleaching using can be used. Solvents that can be used in the bleaching process include water or alcohols such as methanol, propanol, isopropanol or ethyl ether.

The processing of soybean meal followed by this is a drying process. As the soybean meal drying process, spray drying, freeze drying, filtering, centrifuging, or the like may be used. The spray drying method is a method of granulating in the spray of the spray dryer and the moisture is evaporated by contacting the spray and air to obtain a dried particle product, and the freeze drying method can remove the moisture by freezing the solution to obtain a dried product. The filtration method and the centrifugation method are a method of filtration and centrifugation using a decompression device and a centrifugal separator, respectively, followed by drying in air at room temperature.

The dried soybean meal obtained by the above-mentioned method can be converted into a substitute oil which is a substitute for dry milk powder by mixing with various nutrients as required. Nutrients added to the soybean meal in this process include carbohydrate sources such as whey powder, fats (vegetable oils such as palm oil and coconut oil, semi-hardened oils and animal oils such as shorting), minerals / vitamins, and fiber. . These nutrients may be added to the final product or mixed by blending fats after mixing the fats before the spray drying process. To balance nutrition, these nutrients include 22% protein, 13% fat, 52.7% carbohydrates, 8% minerals (calcium, phosphorus and sodium) / vitamins (vitamin A, vitamin D ₃ , vitamin E, vitamin C) and fiber Add 0.3% and 4% moisture.

In order to increase the merchandise, the final product is subjected to additional processes, which are finely divided into fine particles to reduce the weight of the particles in a physical way to increase dispersibility in water, ie solubility, and to add colloids to the colloidal state. How to make, how to homogenize with a homogenizer in the state dissolved in water, hydrolysis at pH 9 to 11 under alkali catalyst, coating hydrophobic fat on soybean meal and the like can be used.

The substitute oil according to the present invention obtained in this way has not only improved various problems due to the color, smell, and solubility of the conventional soybean meal, but also has excellent nutritional properties, especially since soybean meal is very inexpensive compared to soybean meal. It is also very economically advantageous.

Hereinafter, an Example demonstrates this invention concretely. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present invention to only these examples.

Example 1

Grind domestic soybean meal with a roller mill to remove the shell, and make 15 characters of 170 mesh (88μm), of which 50g is taken, 30% hydrogen peroxide 67ml (4% v / v), propanol 300ml (60% v / v) and mol 133ml Bleaching with reflux at 75 ° C. for 30 min. Subsequently, the resultant was filtered, dried at room temperature for about 20 hours, and then ground into powder using a grinder.

The resulting dry pulverized soybean meal powder, soybean meal 24%, fat (palm oil) 9%, whey powder 55%, minerals (calcium, phosphorus, sodium) / vitamins (vitamin A, vitamin D ₃ , vitamin E, vitamin C) 8%, 0.3% fiber, 4% moisture, these nutrients were added and mixed with a mixing grinder.

Example 2

The domestic soybean meal was ground to a mill and the particle size was 170 mesh (88 μm), and 30 g of this soybean meal and 300 ml of water were put in a reactor, and the mixture was stirred and bleached for 1 hour while supplying chlorine gas from which water was removed at 20 ml / min. Subsequently, residual chlorine was blown off using compressed air (nitrogen gas) for 30 minutes. The solid obtained by centrifugation at 2000 rpm for 20 minutes was dried in air at room temperature for 20 hours and then ground to a powder. The crushed soybean meal was mixed with 62% of whey powder and 11% fat (palm oil).

Example 3

The domestic soybean meal was ground to a mill and the particle size was 100 mesh (150 μm). 100 g of this soybean meal and 1000 ml of water were added thereto, and the pH was adjusted to 10 with NaOH solution, followed by hydrolysis by stirring for 1 hour. After hydrolysis, 200% (5% v / v) of 30% hydrogen peroxide was added and bleached under reflux cooling at 78 ° C. for 50 minutes, followed by centrifugation at 2000 rpm for 20 minutes. The solid obtained by centrifugation was dried in air at room temperature and then ground to a powder. To the crushed soybean meal, 62% of whey powder and 11% fat (coconut oil) were added.

Example 4

Grind the domestic soybean meal with a roller mill to remove the shell, and set the particle size to 170 mesh (88 μm), taking 20 g of which 30 ml of hydrogen peroxide 33 ml (5% v / v), isopropinol 140 ml (70% v / v) and Bleaching with reflux cooling at 78 ° C. for 50 minutes with 27 ml of water. Subsequently, the filtrate was dried and then ground to a powder using a grinder.

The resulting dry ground soybean meal powder, soybean meal 24%, fat (palm oil) 9%, whey powder 55%, minerals (calcium, phosphorus, sodium) / vitamins (vitamin A, vitamin D ₃ , vitamin E. vitamin C 8%, 0.3% fiber, 4% moisture, these nutrients were added and mixed with a mixing grinder.

Example 5

Grind the domestic soybean meal with a jet mill to make the particle size 200mesh (75μm), 20g of which is 60 ℃ with 120ml methanol (60% v / v), 30% hydrogen peroxide 27ml (4% v / v) and 53ml water Bleached by reflux cooling for 30 minutes at. Subsequently, the bleached soybean meal was placed in a round flask to take less pressure, and then freeze-dried for 24 hours in a mixture of dry ice and acetone, and then freeze-dried to obtain a dried powder. The freeze dryer use transition pressure was 10 μHg, and 30 minutes after use, the pressure was 70 μHg.

To dry pulverized soybean meal powder obtained above, soybean meal 24%. 9% fat (animal fund), 55% whey powder, 8% minerals (calcium, phosphorus, sodium) / vitamins (vitamin A, vitamin D ₃ , vitamin E, vitamin C). These nutrients were added at a ratio of 0.3% fiber and 4% moisture and mixed with a mixing grinder.

Example 6

Grind the domestic soybean meal with a jet mill and adjust the particle size to 200 mesh (75μm). Take 10g of this, add 90ml of water to it, adjust the pH to 9 with NaOH solution, shake for 30 minutes, and then to pH 7 with hydrochloric acid solution. Neutralized. Subsequently, 5 ml of sodium hypochlorite was added thereto, stirred at 80 ° C. for 2 hours, bleached, and centrifuged at 2000 rpm for 15 minutes. The solid obtained by centrifugation was dried in air at room temperature and then ground to a powder. 27% ground soybean meal was mixed with 62% whey powder and 11% fat (palm oil).

Example 7

The domestic soybean meal was ground, and the particle size was 200 mesh (75 μm), and 100 g of the powder was taken into a reactor with 1000 ml of ethyl alcohol, and stirred for 1 hour while supplying chlorine dioxide gas to bleach. Subsequently, the filtrate was dried in air at room temperature and then ground. 27% of the ground soybean meal was mixed with 62% of whey powder and 11% of fat (shot).

Example 8

Grind the domestic soybean meal with a jet mill to make the particle size 200 mesh (75μm), 200g of which is mixed with 30% hydrogen peroxide 107ml (4% v / v), ethyl alcohol 560ml (70% v / v) and water 133ml 75 Bleached by reflux cooling at 50 ℃ for 50 minutes and then filtered and dried. 100 g of powder dried and crushed in air at room temperature are mixed with 500 g of water, and 36 g of fat (shot) is stirred until it melts transparent at a temperature of 45 ° C., melted, 72 g of wheat is added and mixed at 45 ° C., 0.9 g of an emulsifier is added. After stirring for 15 minutes at 45 ℃ temperature passed through the homogenizer.

After homogenization it was spray dried using a spray dryer.

Spray dried soybean meal powder, soybean meal 33%, whey powder 55%. Minerals (calcium, phosphorus, sodium) / vitamins (vitamin A, vitamin D ₃ , vitamin E, vitamin C) 8%, fiber 0.3%, moisture 4% of these nutrients were added and mixed by mixing grinder.

Example 9

Grind the domestic soybean meal with a jet mill to make the particle size 200 mesh (75μm), 100g of which is 55 ℃ with 700ml of methanol (70% v / v), 100% of 30% hydrogen peroxide (3% v / v) and 200ml of water. Bleached by reflux cooling for 40 minutes at and then filtered and dried. 100 g of powder dried and pulverized in air at room temperature were mixed with 500 g of water, 36 g of fat (shot) was mixed at a temperature of 45 ° C., 0.9 g of an emulsifier was added and stirred to emulsify at a temperature of 45 ° C. for 15 minutes, and then passed through a homogenizer. After homogenization it was spray dried using a spray dryer.

Spray dried soybean meal powder, soybean meal 33%, whey powder 55%. Minerals (calcium, phosphorus, sodium) / vitamins (vitamin A, vitamin D ₃ , vitamin E, vitamin C) 8%, fiber 0.3%, moisture 4% of these nutrients were added and mixed by mixing grinder.

Example 10

The domestic soybean meal was ground with a jet mill and the particle size was 200 mesh (75 μm), and 20 g of this was bleached by reflux cooling at 80 ° C. for 50 minutes with 33 ml of 30% hydrogen peroxide (5% v / v) and 167 ml of water. The bleached soybean meal solution was widely opened on a round flask wall surface and then freeze dried for 24 hours to obtain a dried powder. The pressure before using the freeze dryer was 30 μHg, and the pressure after 30 minutes of use was 100 μHg.

Spray dried soybean meal powder, soybean meal 24%, fat (shot) 9%, whey powder 55%, minerals (calcium, phosphorus, sodium) / vitamins (vitamin A, vitamin D ₃ , vitamin E, vitamin C) 8% These nutrients were added at a ratio of 0.3% fiber and 4% moisture, and mixed with a mixing grinder.

Example 11

The domestic soybean meal was ground and the size of the particles was 200 mesh (75 μm), 30 g of which was taken into a reactor with 300 ml of ethanol, and bleached by stirring for 1 hour while supplying chlorine gas with 20 ml / min. Subsequently, residual chlorine was blown off using compressed air (nitrogen gas) for 30 minutes. The bleach solution was filtered and dried at room temperature for 24 hours, and then ground to a powder using a grinder.

In dry pulverized soybean meal, soybean meal 24%, fat (palm oil) 9%, whey powder 55%, minerals (calcium, phosphorus, sodium) / vitamins (vitamin A, vitamin D ₃ , vitamin E, vitamin C) 8%, These nutrients were added at a ratio of 0.3% fiber and 4% moisture and mixed with a mixing grinder.

Example 12

The domestic soybean meal was ground, and the particle size was 200 mesh (75 μm), and 100 g of this was taken, bleached by reflux cooling at 80 ° C. for 50 minutes with 83 ml (5% v / v) of 30% hydrogen peroxide and 417 ml of water, followed by filtration and drying. . 100 g of powder dried and pulverized in air at room temperature is mixed with 500 g of water, 36f of fat (shot) is melted until it melts transparent at 45 ℃ until it melts, 72g of water is added and mixed at 45 ℃ again and 0.9g of emulsifier is added. Stir for 15 minutes at 45 ℃ emulsified and passed through a homogenizer. After homogenization it was spray dried using a spray dryer.

Spray dried soybean meal, soybean meal 33%, whey powder 55%, minerals (calcium, phosphorus, sodium) / vitamins (vitamin A, vitamin D ₃ , vitamin E, vitamin C) 8%, fiber 0.3%, moisture 4% These nutrients were added at the ratio of and mixed with a mixing grinder.

Example 13

The domestic soybean meal was ground, and the size of the particles was 200 mesh (75 μm), and 30 g of the particles were taken into a reactor with 300 ml of ethyl ether, and stirred and bleached for 1 hour while supplying chlorine gas from which moisture was removed at 20 ml / min. Then, residual chlorine was blown off using compressed air (nitrogen gas) for 30 minutes. The bleach solution was filtered and dried at room temperature for 24 hours, and then ground to a powder using a grinder.

In dry pulverized soybean meal, soybean meal 24%, fat (palm oil) 9%, whey powder 55%, minerals (calcium, phosphorus, sodium) / vitamins (vitamin A, vitamin D ₃ , vitamin E, vitamin C) 8%, These nutrients were added at a ratio of 0.3% fiber and 4% moisture and mixed with a mixing grinder.

Example 14

The domestic soybean meal was ground and the size of the particles was 200 mesa (75 μm), 3 g of which were taken, and 300 ml of water was added thereto, and the pH was adjusted to 11 with NaOH solution, followed by hydrolysis by stirring for 1 hour. After hydrolysis, the water was removed and bleached by stirring for 1 hour while supplying chlorine gas at 20 ml / min. Subsequently, residual chlorophyll was blown off using compressed air (nitrogen gas) for 30 minutes. The solid obtained by centrifugation at 2000 rpm for 20 minutes was dried in air at room temperature for 20 hours and then ground to a powder.

These nutrients were stored in a dry pulverized soybean meal in a ratio of 27% soybean meal, 62% whey powder and 11% fat (coconut oil), and mixed with a mixing grinder.

Example 15

The domestic soybean meal was ground and the size of the particles was 200 mesa (75 μm), 100 g of which was put into a reactor with 1000 ml of water, and stirred for 1 hour while feeding chlorine dioxide gas to bleach. After bleaching, the mixture was centrifuged at 2000 rpm for 20 minutes. Solids obtained after centrifugation were dried in air at room temperature and then ground to a powder.

To the ground soybean meal, these nutrients were added at a ratio of 27% soybean meal, 62% whey powder, and 11% fat (animal oil), and mixed with a mixing grinder.

Claims (8)

A process for preparing soybean oil from soybean meal, comprising pulverizing soybean meal into soybean meal fine powder of 100 mesh (150 μm) or less by a known method, 20 ml / Bleaching using a bleach selected from chlorine gas (Cl ₂ ) in minutes, 3 to 5% v / v 30% hydrogen peroxide, chlorine dioxide, 5% sodium hypochlorite, and then drying the nutrients required for the And mixing with the dried product produced from the bleaching and drying steps, and when hydrogen peroxide is used as the bleaching agent, bleaching of the ground soybean meal is performed by reflux cooling at a temperature of 50 ° C to 80 ° C. Method of preparation. The method of claim 1, wherein the pulverizing step is carried out using a cutting method, a crushing method using a roller mill, a shearing method applying both cutting and grinding together, or an impact crushing method using a hammer mill or a jet mill. The method of claim 1, wherein the drying is performed by spray drying, freeze drying, filtration or centrifugation. The method of claim 1, wherein the nutrient is whey powder, fat, mineral / vitamins and fiber. 5. The method of claim 1, wherein the nutrients are added to the dried final product or mixed by incorporating fat prior to spray drying to spray dry and then adding the remaining nutrients. 6. The method of claim 1, wherein the substitute oil is finely ground to reduce the weight of the particles, adding the emulsifier to colloidal state, homogenizing with a homogenizer in water dissolved state, pH 9 to 11 under alkali catalyst Which is further processed by hydrolysis in or coating hydrophobic fat on soybean meal. A substitute oil prepared by the method according to claim 1. The content of claim 7, wherein the substitute oil contains nutrients in a ratio of 22% protein, 13% fat, 52.7% carbohydrate, 8% mineral / vitamin, 0.3% fiber and 4% moisture.