Preparation method for nano-bone meal

A nano and bone meal technology, applied in food preparation, food science, animal feed, etc., can solve the problems of perishable bone degeneration, unstable product quality, high labor intensity, etc., and achieve low material utilization, long time, and absorption effect. Good results

Inactive Publication Date: 2013-05-01
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods all go through high-temperature cooking, filtering, drying, crushing and other processes. The process is complicated, the energy consumption is high, and the labor intensity is high. The bones after cooking are easy to rot and degenerate, and the product quality is unstable; , difficult to handle, easy to cause environmental pollution and waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Take 20kg of fresh pork bones and wash them with clean water to remove blood stains and other sundries adhering to the surface.

[0021] (2) Add the bones to an open heating kettle filled with 20kg of lard, keep the temperature in the kettle at 100-140°C, and heat for 1.5 hours; then control the temperature in the kettle to 160°C, continue heating for 0.5 hours, and heat the bones while heating Stir. When the heat is over, strain the bones from the oil through a strainer.

[0022] (3) Grinding the bone obtained in step (2) with a mechanical pulverizer to obtain coarse bone meal, and the filter screen of the pulverizer is 100 mesh.

[0023] (4) Disperse the coarse bone meal in an appropriate amount of ethanol, and homogenize under high pressure for 15 times under a pressure of 100 MPa to obtain a nano-bone slurry with an average particle size of 500 nm.

[0024] (5) Using a spray drying method to dry the slurry obtained in step (4) to obtain nano-bone powder contai...

Embodiment 2

[0026] (1) Take 20kg of fresh beef bones, and wash away blood stains and other sundries with clean water.

[0027] (2) Put the cleaned beef bones into an open heating kettle filled with 25kg of fat, and the fat composition is lard containing 50% diglyceride. Keep the temperature in the kettle at 100-125°C and heat for 2 hours; then control the temperature of the system at 170°C and continue heating for 0.2 hours, stirring the bones while heating. After heating, the bones are separated from the kettle through a strainer.

[0028] (3) Use a mechanical pulverizer to pulverize the bovine bone after the oil phase has been heated to obtain coarse bone powder, and the filter screen of the pulverizer is 120 mesh.

[0029] (4) Take an appropriate amount of methanol, uniformly disperse the above-mentioned coarse bone meal in it, and obtain a bone meal filter cake through filtration.

[0030] (5) Disperse the filter cake obtained in step (4) in water, and homogenize under high pressure...

Embodiment 3

[0033] (1) Remove 20kg of fresh yak, and wash off the blood stains and other sundries adhering to the surface with clean water.

[0034] (2) Add the cleaned yak bones to an open heating kettle filled with 15kg of fat, and the fat-flavored butter. Keep the temperature in the kettle at 100-145°C and heat for 1 hour; then control the temperature of the system at 170°C and continue heating for 1 hour, stirring the bones while heating. After heating, the bones are separated from the kettle through a strainer.

[0035] (3) Use a mechanical pulverizer to pulverize the bovine bone after the oil phase is heated to obtain coarse bone meal, and the pulverizer has a filter screen of 80 mesh.

[0036] (4) Take an appropriate amount of acetone, uniformly disperse the above-mentioned coarse bone meal in it, and filter to obtain a bone meal filter cake.

[0037] (5) Disperse the filter cake obtained in step (4) in water, and homogenize under high pressure for 10 times under a pressure of 12...

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Abstract

The invention provides a preparation method for nano-bone meal, which takes the oil phase heating method as a basis to prepare the nano-bone meal through a high-pressure homogenization process. The preparation method mainly comprises the following steps: 1, cleaning bones; 2, adding the bones into a heating kettle with an opening, taking grease as a heating medium and heating to remove moisture and fat in the bones; 3, performing mechanical pulverization on the heated bones to obtain crude bone meal; 4, removing or non-removing grease in the crude bone meal; and 5, dispersing the crude bone meal in the solution to obtain the nano-bone paste through the high-pressure homogenization method, and drying the paste to obtain the nano-bone meal with the average grain diameter of 100-1,000 nm. The method overcomes the defects in the traditional high-temperature cooking method that the process is complex, the utilization rate of material is low and the product quality is unstable; and the prepared nano-bone meal has the advantages of small grain diameter, uniform distribution, high dispersion speed, good absorbing effect and mellow taste, can be eaten or applicable to the field of food, feed and the like as an additive, and has a broad market prospect.

Description

technical field [0001] The invention relates to the scientific fields of food processing and material preparation, in particular to a preparation method of nano bone powder. Background technique [0002] Animal bones are rich in calcium, phosphorus, oil and protein, and are important sources of mineral elements and nutrients. Usually, bones are processed into bone meal for utilization. The calcium content in bone powder is significantly higher than other foods, and it is similar to human bone, so it has a high calcium utilization rate and is a good choice for calcium supplementation. In addition, bone meal has high collagen content, low fat content, and reasonable fatty acid ratio, which is a high-nutrition, low-calorie food. In recent years, bone meal has been widely used in food, feed, pharmaceutical, fine chemical products and ceramic manufacturing and other fields. [0003] At present, the preparation method of bone powder is mainly to cook the bones at high temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/29A23K1/16A23L33/00
Inventor 张智亮计建炳刘学军石光强
Owner ZHEJIANG UNIV OF TECH
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