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Secondary enzymolysis method for preparing heme iron for feeds

A technology of secondary enzymatic hydrolysis and heme iron, applied in animal feed, animal feed, application, etc., can solve the problems of low iron content, low absorption rate, and low heme purity, and achieve high heme iron content. , the effect of high absorption rate

Inactive Publication Date: 2011-05-04
天津宝迪农业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the purity of the heme obtained by enzymatic hydrolysis is not very high, the iron content is low, and the absorption rate is not high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Take fresh pig blood, add sodium citrate with a mass fraction of 10% to make the content of sodium citrate 4.5‰; use a tube centrifuge to separate plasma and blood cells, the centrifugation conditions are: 3500~7000r / min speed centrifugation 15min. Take the blood cell solution, add 2 times the volume of water to the blood cell solution, start stirring for 1-3 hours, and break the blood cell; after breaking the wall, raise the temperature of the blood cell solution to 55°C, add 5‰ animal proteolytic enzyme, and enzymatically hydrolyze for 12 hours , adjust the pH to 5.0 with 6mol / L hydrochloric acid, filter the enzymatic solution through a filter press, collect the filter cake on the filter cloth, add 5 times of water to dissolve, heat up to 55°C, add 2.5‰ of animal proteolytic enzyme, After 10 hours of enzymatic hydrolysis, adjust the pH to 5.0 with 6 mol / L hydrochloric acid, filter the enzymolyzed solution through a filter press, collect the filter cake, and dry it in ...

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Abstract

The invention relates to a secondary enzymolysis method for preparing heme iron for feeds, which comprises the following steps: acquiring fresh animal blood, carrying out anticoagulation, centrifugating to obtain blood corpuscles, adding 1-4 times by weight of water to the blood corpuscles, stirring for 1-3 hours to break walls, keeping the temperature at 50-55 DEG C, adding protease to carry out enzymolysis, regulating the pH value, carrying out pressure filtration, collecting filter cakes, dissolving, carrying out secondary enzymolysis, collecting filter cakes, and drying with a flash evaporation drying machine. The heme iron obtained by the method in the invention has the characteristics of high heme iron content and high absorptivity.

Description

Technical field: [0001] The invention relates to a feed additive preparation process, in particular to a secondary enzymolysis preparation method of heme iron for feed. Background technique: [0002] Pig blood is an industrial by-product with high nutritional value and biological value that can be obtained in large quantities during slaughtering and processing. China slaughters nearly 500 million pigs every year, accounting for nearly half of the world's slaughtering volume. The total annual output of blood resources reaches 2.5-3 million tons. Except for a small part of this rich animal blood resources, it is used in the food industry and feed industry. Most of them are thrown away as waste. This not only causes a serious waste of resources, but also causes environmental pollution of rivers and groundwater with ammonia nitrogen. From the perspective of the development of new edible protein resources, the effective utilization of by-products, the reduction of slaughterhous...

Claims

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Application Information

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IPC IPC(8): A23K1/04A23K1/16A23K20/20
Inventor 宋古全张立娟吴明文王雅静
Owner 天津宝迪农业科技股份有限公司