Method for efficiently preparing compound amino acids

A compound amino acid, high-efficiency technology, applied in the formation/introduction of amino groups, cyanide reaction preparation, chemical instruments and methods, etc., can solve the problems of long time consumption, secondary pollution, a large amount of waste liquid, etc., and achieve easy absorption of heat. , The effect of efficient and fast heating and improved hydrolysis rate

Active Publication Date: 2017-05-10
成都华宏生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The acid-base hydrolysis method is commonly used in the industrialization of feather hydrolysis, but this method takes a long time and consumes a lot of energy. After hydrolysis, a large amount of waste liquid is produced, which is difficult to handle and easily causes secondary pollution.

Method used

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  • Method for efficiently preparing compound amino acids

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Experimental program
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Effect test

Embodiment 1

[0033] A method for efficiently preparing compound amino acids includes the following steps:

[0034] (1) Take the feathers, dry, and crush them to pass a 40-mesh sieve. 60 It is irradiated by Co-γ rays, the irradiation dose is 200KGy, and the irradiation dose rate is 25Gy / min;

[0035] (2) Add hydrochloric acid with a concentration of 6mol / L to the irradiated feather meal in step (1), stir and mix, and heat to 50°C for hydrolysis for 10 minutes to obtain the first hydrolysate; among them, the mixture of feather meal and hydrochloric acid The mass volume is 1:5;

[0036] (3) Place the first hydrolysate obtained in step (2) in a microwave reactor, and add 0.5% of the weight of the first hydrolysate to 1-butyl-3-methylimidazolium bromide, which is heated in the microwave. Under conditions, continue the reaction for 10 minutes, and after cooling, filter to obtain the second hydrolysate; wherein the microwave heating power is 640W;

[0037] (4) Add a saturated calcium hydroxide solution ...

Embodiment 2

[0042] A method for efficiently preparing compound amino acids includes the following steps:

[0043] (1) Take the feathers, dry, and crush them to pass through a 60-mesh sieve. 60 It is irradiated by Co-γ rays, the irradiation dose is 250KGy, and the irradiation dose rate is 20Gy / min;

[0044] (2) Add hydrochloric acid with a concentration of 8mol / L to the irradiated feather meal in step (1), stir and mix, and heat to 40°C for hydrolysis for 5 minutes to obtain the first hydrolysate; among them, the mixture of feather meal and hydrochloric acid The mass volume is 1:6;

[0045] (3) Place the first hydrolysate obtained in step (2) in a microwave reactor, and add 0.3% ionic liquid 1-butyl-3-methylimidazolium bromide by weight of the first hydrolysate, and heat it in the microwave. Under the conditions, the reaction is continued for 5 minutes, and after cooling, the second hydrolysate is obtained by filtration; wherein the microwave heating power is 700W;

[0046] (4) Add a saturated ca...

Embodiment 3

[0051] A method for efficiently preparing compound amino acids includes the following steps:

[0052] (1) Take the feathers, dry them, crush them to pass a 50-mesh sieve, and use 60 It is irradiated by Co-γ rays, the irradiation dose is 150KGy, and the irradiation dose rate is 50Gy / min;

[0053] (2) Add hydrochloric acid with a concentration of 7 mol / L to the irradiated feather meal in step (1), stir and mix, and heat to 60°C to hydrolyze for 8 minutes to obtain the first hydrolysate; among them, the mixture of feather meal and hydrochloric acid The mass volume is 1:8;

[0054] (3) Put the first hydrolysate obtained in step (2) in a microwave reactor, and add 0.7% ionic liquid 1-butyl-3-methylimidazolium bromide by weight of the hydrolysate, and heat under the condition of microwave , Continue the reaction for 8 minutes, after cooling, filter to obtain the second hydrolysate; wherein the microwave heating power is 600W;

[0055] (4) Add a saturated calcium hydroxide solution to the o...

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PUM

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Abstract

The invention discloses a method for efficiently preparing compound amino acids. The method for efficiently preparing the compound amino acids comprises the following steps: taking feathers, grinding until sieving with a 40-60 mesh sieve, and using <60>Co-gamma rays to carry out irradiation on sieved feather powder; hydrolyzing the feather powder which is subjected to irradiation in the step (1) to obtain first hydrolysate; adding ionic liquid to the first hydrolysate obtained in the step (2), and continuously reacting for 5 to 20min under the conditions of microwave heating, and filtering to obtain second hydrolysate; adjusting the pH of the second hydrolysate to be neutral, thus obtaining the compound amino acids; the method for efficiently preparing the compound amino acids disclosed by the invention integrates irradiation technologies, microwave heating technologies and ionic liquid technologies, firstly, the irradiation rays are used for carrying out ionization excitation on the feathers to activate molecules, on the other hand, the ionic liquid has a higher absorptive capacity for microwave and good solubility for molecular substances to greatly accelerate the reaction rate, and effectively improve the hydrolysis rate, so that the method for efficiently preparing the compound amino acids is a novel high-efficiency and green hydrolysis method and has great application prospects.

Description

Technical field [0001] The invention relates to the technical field of amino acid preparation, in particular to a method for efficiently preparing compound amino acids. Background technique [0002] my country is the most populous country in the world and consumes a large amount of poultry such as chickens, ducks and geese every year; in 2015, the production of poultry feathers reached more than 800,000 tons, but only a small amount of these feather wastes were made into pillows, quilts, feather fans Most of the shuttlecock, badminton, etc. are directly discarded, which not only causes water pollution, produces unpleasant or even harmful gases, but also easily leads to the breeding of mosquitoes, bacteria, and viruses, and harms human health. [0003] According to measurements, the crude protein content of feather keratin is about 80% or more, the amino acid content is more than 70%, and it also contains macro elements, trace elements, vitamins and some unknown growth factors; there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07B43/04C07C227/20C07C229/22C07C229/24C07C229/26C07D207/16C07C229/08C07C323/58C07C229/36C07D233/64C07C279/14C07C319/22C07C277/08C05C11/00
CPCC05C11/00C07B43/04C07C227/20C07C277/08C07C319/22C07D207/16C07D233/64C07C229/22C07C229/24C07C229/26C07C229/08C07C323/58C07C229/36C07C279/14
Inventor 关统伟王鹏昊向慧平李智强邓奥宇赵顺先张习超
Owner 成都华宏生物科技有限公司
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