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Preparation method of eggshell hydrolysate, as well as product and application of eggshell hydrolysate

A technology of hydrolyzate and eggshell, applied in application, animal feed, animal feed, etc., can solve the problems of underutilization, garbage disposal, and underutilization of resources, so as to avoid excessive reaction, prevent splashing, and reduce costs. low effect

Inactive Publication Date: 2012-07-04
CHONGQING ACAD OF ANIMAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a large number of eggshells produced after hatching or processing egg-containing foods are mostly discarded as garbage and have not been fully utilized. On the one hand, the resources have not been fully utilized, and on the other hand, it has brought great pressure to environmental governance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation of eggshell hydrolyzate, concrete steps are as follows:

[0031] a. Preprocessing

[0032] Collect egg shells, ultrasonically clean them with water for 20 minutes, and then wash them with water for 5 times to obtain clean egg shells for later use;

[0033] b. Disinfection

[0034] Add the eggshell obtained in step a to an electrolyte solution equivalent to 5 times the volume of the eggshell, sterilize for 30 minutes, then collect the eggshell, dry the eggshell at 100°C, and crush it to obtain eggshell powder, which is set aside; the electrolyte It is prepared by electrolysis of 0.5mol / L sodium chloride and 0.05mol / L hydrochloric acid at 220V for 1 hour, and the available chlorine concentration in the prepared electrolyte is 800ppm, which is ready for use.

[0035] c. Acid hydrolysis

[0036] Add a hydrochloric acid solution with a pH value of 3 equivalent to 10 times the weight of the eggshell powder to the eggshell powder obtained in step b, stir con...

Embodiment 2

[0039] The preparation of eggshell hydrolyzate, concrete steps are as follows:

[0040] a. Preprocessing

[0041] Collect duck eggshells, ultrasonically clean them with water for 30 minutes, and then wash them with water 3 times to obtain clean eggshells for later use;

[0042] b. Disinfection

[0043] Add the eggshell obtained in step a to an electrolyte solution equivalent to 3 times the volume of the eggshell, sterilize for 45 minutes, then collect the eggshell, dry the eggshell at 80°C, and crush it to obtain eggshell powder, which is set aside; the electrolyte It is prepared by electrolysis of 0.85mol / L sodium chloride and 0.01mol / L hydrochloric acid under the condition of 220V for 2 hours. The available chlorine concentration in the prepared electrolyte is 1200ppm, diluted to 80ppm available chlorine concentration, and used for later use.

[0044] c. Acid hydrolysis

[0045] Add a hydrochloric acid solution with a pH value of 4, which is equivalent to 6 times the weig...

Embodiment 3

[0048] The preparation of eggshell hydrolyzate, concrete steps are as follows:

[0049] a. Preprocessing

[0050] Collect goose eggshells, ultrasonically clean them with water for 30 minutes, and then wash them with water 3 times to obtain clean eggshells for later use;

[0051] b. Disinfection

[0052] Add the eggshell obtained in step a into an electrolyte solution equivalent to 4 times the volume of the eggshell, sterilize for 10 minutes, then collect the eggshell, dry the eggshell at 80°C, and crush it to obtain eggshell powder, which is set aside; the electrolyte It is prepared by electrolysis of sodium chloride with a concentration of 0.085mol / L and 0.1mol / L hydrochloric acid at 220V for 2 hours, and the concentration of available chlorine in the prepared electrolyte is 250ppm, which is ready for use.

[0053] c. Acid hydrolysis

[0054] Add a hydrochloric acid solution with a pH value of 3.5 equivalent to 8 times the weight of the eggshell powder to the eggshell powd...

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PUM

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Abstract

The invention discloses a preparation method of eggshell hydrolysate. The preparation method comprises the following specific steps of: collecting eggshells, and washing the collected eggshells to obtain the clean eggshells; placing the washed eggshells into an electrolyte solution prepared by a mixed solution of sodium chloride and hydrochloric acid for sterilization; collecting the sterilized eggshells, then drying and smashing the sterilized eggshells; and adding hydrochloric acid or acetic acid for carrying out acidolysis till the eggshells react with the hydrochloric acid or the acetic acid completely, filtering, collecting a filtrate, and obtaining the eggshell hydrolysate. The preparation method is simple, is low in cost, does not need any special equipment or reagent; and the prepared eggshell hydrolysate contains elements such as calcium, phosphorus, magnesium, and zinc, and can be used for improving the laying rate of poultry in later egg-laying period.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a method for preparing eggshell hydrolyzate, and also to the eggshell hydrolyzate prepared by the method and its application. Background technique [0002] Poultry (such as: laying ducks, laying hens, etc.) have a peak egg production period during the egg production process. Once the egg production peak period passes, the egg production rate will drop significantly, and the quality of the eggshell will also decrease, such as the breakage rate. Improve and produce soft-shell eggs, sand-shell eggs, etc., which have seriously affected economic benefits. Nutrition is an important factor affecting the egg production rate and eggshell quality. The egg production rate can be improved to a certain extent by supplementing appropriate amounts of calcium, phosphorus, magnesium, zinc and other elements. However, if the proportion of added elements is inappropriate, a series of side effects ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/10A23K1/18
Inventor 葛良鹏李星张晓春王阳铭杜金平
Owner CHONGQING ACAD OF ANIMAL SCI
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