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Method for producing chitin, astaxanthin, protein, calcium powder and biological fertilizer from shrimp shell

A bio-fertilizer and astaxanthin technology, which is applied in the direction of animal carcass fertilizer, organic fertilizer, application, etc., can solve the problems of high product cost, pollution, environmental pollution, etc., and achieve the goal of reducing energy consumption, reducing environmental pollution, and improving extraction rate Effect

Active Publication Date: 2006-01-04
林大昌
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the different components contained in fresh shrimp shells, this invention uses organic acid and organic solvent to extract respectively, thereby obtaining astaxanthin and protein while preparing chitin. In this method, the yield of astaxanthin extraction is not high, not only The resources in the shrimp shell are wasted, and the waste acid and waste lye discharged during the production process will also cause environmental pollution, and the cost of the obtained product is high
This method uses chloroform, which has certain pollution to the environment, and the recycling of waste liquid is not thorough, which not only causes waste, but also pollutes the environment.

Method used

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  • Method for producing chitin, astaxanthin, protein, calcium powder and biological fertilizer from shrimp shell

Examples

Experimental program
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Effect test

Embodiment 1

[0022] 100 kg of crayfish shells washed to remove the dirt in the shrimp are mechanically crushed to 5-10 mesh. The purpose of crushing is to reduce energy consumption and improve yield, and pour it into the reaction kettle. Then add 100 kg of water into the reaction kettle for enzymolysis. The temperature of the enzymolysis is 30°C, the pH value is 4-8, and the time is 2 hours. Add 1 kg of protease. The main purpose of the enzymolysis is to separate the protein. After enzymatic hydrolysis, heat up to 80°C to sterilize the enzyme bacteria, and then cool down. Add 50 kg of petroleum ether, 20 kg of acetone and 80 kg of ethanol to the reaction kettle for extraction, fully airtight and stir for 6 hours and then cool. Then the liquid and the solid are separated, and the liquid is separated into a hydrolyzed liquid and an organic liquid, and the astaxanthin-containing organic liquid is vacuum-concentrated to extract the crude astaxanthin with a content of 0.5%. After liquid separa...

Embodiment 2

[0024] 200 kilograms of crayfish shells washed to remove the dirt in the shrimp are mechanically crushed to 5-10 mesh. The purpose of crushing is to reduce energy consumption and increase yield, and pour them into the reaction kettle. Then add 300 kg of water to the reaction kettle for enzymolysis. The temperature of the enzymolysis is 60°C, the pH value is 4-8, and the time is 5 hours. Add 1.6 kg of protease. The main purpose of the enzymolysis is to separate the protein. After enzymatic hydrolysis, heat up to 100°C to sterilize the enzyme bacteria, and then cool down. Then add 100 kg of petroleum ether and 300 kg of ethanol to the reaction kettle for extraction, fully airtight and stir for 10 hours and then cool. Then the liquid and the solid are separated, and the liquid is separated into a hydrolyzed liquid and an organic liquid, and the organic liquid containing astaxanthin is vacuum-concentrated to extract crude astaxanthin with a content of 1%. After liquid separation,...

Embodiment 3

[0026] 150 kg of crayfish shells washed to remove the dirt in the shrimp are mechanically crushed to 5-10 mesh. The purpose of crushing is to reduce energy consumption and improve yield, and pour it into the reaction kettle. Then add 300 kg of water to the reaction kettle for enzymolysis. The temperature of the enzymolysis is 70°C, the pH value is 4-8, and the time is 6 hours. Add 1.1 kg of protease. The main purpose of the enzymolysis is to separate the protein. After enzymatic hydrolysis, heat up to 70°C to sterilize the enzyme bacteria, and then cool down. Then add 50 kg of acetone and 100 kg of ethanol in the reaction kettle for extraction, fully airtight and stir for 8 hours and then cool. Then the liquid and the solid are separated, and the liquid is separated into a hydrolyzed liquid and an organic liquid, and the organic liquid containing astaxanthin is vacuum-concentrated to extract crude astaxanthin with a content of 0.7%. After liquid separation, the hydrolyzate is...

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Abstract

The method of producing chitin, astaxanthin, protein, calcium powder and biofertilizer with shrimp shell includes the following technological steps: crushing shrimp shell, enzymolysis with composite enzyme, extracting with organic solvent, reaction and separating liquid from solid; separating the liquid into hydrolysis liquid and organic liquid ; vacuum concentrating the organic liquid to obtain coarse astaxanthin; eliminating organic solvent from hydrolysis liquid, vacuum concentrating and spray drying to obtain protein powder; soaking the solid in 3 % concentration hydrochloric acid and rinsing to obtain chitin; introducing CO2 gas to the waste acid solution and filtering to obtain active calcium powder; ultrafiltering the coarse astaxanthin liquid to obtain astaxanthin; adding phytic acid and active oligose into the effluent to obtain nutritious liquid as biofertilizer.

Description

technical field [0001] The invention relates to a method for producing biological products by using shrimp shells, in particular to a method for producing chitin, astaxanthin, protein, calcium powder and biological fertilizers by using shrimp shells. Background technique [0002] The patent application number 02122565.6 discloses a method for producing chitin, astaxanthin and protein with fresh shrimp shells, and discloses a method for producing chitin, astaxanthin and protein with fresh shrimp shells. According to the different components contained in fresh shrimp shells, this invention uses organic acid and organic solvent to extract respectively, thereby obtaining astaxanthin and protein while preparing chitin. In this method, the yield of astaxanthin extraction is not high, not only The resources in the shrimp shell are wasted, and the waste acid and waste lye discharged in the production process can also cause environmental pollution, and the cost of the obtained produc...

Claims

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Application Information

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IPC IPC(8): C05F1/00
CPCY02A40/20
Inventor 林大昌俞祖勋汪昔奇
Owner 林大昌
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