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Method for producing krill oil, protein peptide powder and chitosan by full utilization of Antarctic krill powder

An Antarctic krill powder and krill production technology, applied in the direction of botanical equipment and methods, fat oil/fat production, application, etc., can solve the problems of large energy and resource consumption, backward technology, low resource utilization rate, etc., and achieve reduction The influence of harmful factors, the improvement of product purity, and the effect of removing harmful factors

Inactive Publication Date: 2016-10-12
青岛南极维康生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the domestic utilization of Antarctic krill is mainly concentrated in the single extraction of krill oil or phospholipids, while the follow-up protein peptide powder and chitin are rarely extracted. The by-products are mainly used as feed grade applications, and the resource utilization rate is not high.
[0003] Qingdao Fuchuang Environmental Technology Co., Ltd.'s openly applied patent "A process for extracting krill oil from Antarctic krill powder to co-produce protein and chitin" (application number: 201310607460.6) although the subsequent extraction process of protein and chitin It is also involved, but due to the backward technology, the product purity is not high, a large amount of acid and alkali are used in the production process, there is a certain danger, the energy and resource consumption is large, and a large amount of acid and alkali waste liquid is generated during the processing process. Serious environmental pollution and high treatment costs

Method used

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  • Method for producing krill oil, protein peptide powder and chitosan by full utilization of Antarctic krill powder
  • Method for producing krill oil, protein peptide powder and chitosan by full utilization of Antarctic krill powder
  • Method for producing krill oil, protein peptide powder and chitosan by full utilization of Antarctic krill powder

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Antarctic krill powder fully utilizes the method of producing krill oil, protein peptide powder and chitosan, and the steps include:

[0023] (1) Extraction of krill oil: Add 50kg of shrimp powder to 250L of 95% alcohol for extraction, temperature 45-65°C, stir and extract for 90min, press filter with nitrogen or carbon dioxide to obtain residue and extract, add 150L of 95% alcohol to the residue for secondary Extraction, when the extract is evaporated under reduced pressure to an appropriate volume, centrifuged to remove impurities, evaporated and precipitated at low temperature and reduced pressure (45~65°C, -0.05~-0.10mPa) to obtain krill oil, and then add 75% alcohol for extraction and layering, The upper layer is recovered as the solvent for the next extraction, the lower layer is desolvated and concentrated, and the organic solvent is recovered by the recovery tower for reuse;

[0024] (2) Preparation of protein peptide powder: 36.5kg of degreased shrimp powder wa...

Embodiment 2

[0029] Antarctic krill powder fully utilizes the method of producing krill oil, protein peptide powder and chitosan, and the steps include:

[0030] (1) Extraction of krill oil: add 800L of 95% alcohol to extract 80kg of shrimp powder, extract at a temperature of 45-65°C, and extract for 180 minutes. Press filter with nitrogen or carbon dioxide to obtain the residue and extract, and add 200L of 95% alcohol to the residue for secondary extraction , when the extract is evaporated to an appropriate volume under reduced pressure, it is centrifuged to remove impurities, evaporated and precipitated at low temperature and reduced pressure (45~65°C, -0.05~-0.10mPa) to obtain krill oil, and then add 95% alcohol to extract and layer, the upper layer Recover as the solvent for the next extraction, the lower layer is precipitated and concentrated, the extraction and stratification steps are repeated twice, and the organic solvent is recovered by the recovery tower for reuse;

[0031] (2) ...

Embodiment 3

[0036] Antarctic krill powder fully utilizes the method of producing krill oil, protein peptide powder and chitosan, and the steps include:

[0037](1) Extraction of krill oil: add 100kg of shrimp powder to 1500L of absolute ethanol for extraction, temperature 45-65°C, stir and extract for 360min, press filter with nitrogen or carbon dioxide to obtain the residue and extract, add the residue to 225L of absolute alcohol for secondary Extraction, when the extract is evaporated under reduced pressure to an appropriate volume, centrifuged to remove impurities, evaporated and precipitated at low temperature and reduced pressure (45~65°C, -0.05~-0.10mPa) to obtain krill oil, and then add anhydrous alcohol to extract and layer, The upper layer is recovered as the solvent for the next extraction, the lower layer is desolvated and concentrated, and the extraction and stratification steps are repeated 4 times, and the organic solvent is recovered by the recovery tower for reuse;

[0038...

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Abstract

The invention discloses a method for producing krill oil, protein peptide powder and chitosan by full utilization of Antarctic krill powder. The method comprises the following steps: 1. extraction of krill oil: extracting the Antarctic krill powder by adopting an organic solvent, and carrying out low-temperature decompression desolvation, extraction and concentration on the extracting solution, wherein the contents of obtained krill oil phospholipid and astaxanthin are high; 2. preparation of protein peptide powder: carrying out compound enzymolysis on degreased shrimp meal to obtain an enzymolysis solution, and refining and then spray-drying the enzymolysis solution to obtain the protein peptide powder, wherein the peptide content of the obtained protein peptide powder is greater than or equal to 85%; and 3. preparation of chitosan: decalcifying the shrimp shell meal which is degreased by the organic solvent and is subjected to deproteinization by enzymolysis by adopting microorganism fermentation, further carrying out deproteinization, carrying out oxidative decoloration, and carrying out deacetylation to obtain chitosan and byproduct organic calcium. The method really realizes high-valued full utilization of the Antarctic krill powder, can be used for extracting nutritional ingredients in the Antarctic krill powder to the maximum extent so as to improve the resource utilization ratio, can avoid generation of waste residues, and can ensure the benefit maximization of an enterprise.

Description

technical field [0001] The invention relates to a method for producing krill oil, protein peptide powder and chitosan by full utilization of Antarctic krill powder. The method can realize high-value full utilization of Antarctic krill resources, no waste residue discharge in the production process, and a small amount of production The waste water is treated up to standard discharge, the product is of high purity, the influence of harmful factors is minimized, and the high-value comprehensive utilization of Antarctic krill powder is truly realized. Background technique [0002] Antarctic krill contains a variety of nutrients needed by the human body, such as phospholipids, astaxanthin, DHA, EPA and various mineral elements. In addition, Antarctic krill is the organism with the highest protein content found so far. More than 50%, but also rich in amino acids and vitamins necessary for human tissue, krill shell is rich in chitin, chitosan is a derivative of chitin, krill is als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10A23L33/18A23L29/30C12P21/06C08B37/08
CPCC11B1/10A01G31/00C08B37/0003C08B37/003C11B1/108C12P21/06
Inventor 刘福贵林婷贾玉林赵雯婧李荣秀冷凯良
Owner 青岛南极维康生物科技有限公司
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