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Preparation of copper algae algal powder and extraction method of fucoxanthin in the algal powder

A technology of fucoxanthin and extraction method, which is applied in the direction of organic chemistry, can solve the problems of high energy consumption and low purity, and achieve the effects of low energy consumption, low degradation rate and low harvesting cost

Active Publication Date: 2022-07-12
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN105859657A discloses a method for extracting crude fucoxanthin from copper algae. The patent extracts crude fucoxanthin from copper algae through pretreatment, suction filtration, ultrasonic leaching, and extraction. The pretreatment involves algae Freeze-drying of the body, although the activity of fucoxanthin is maintained to a certain extent, the energy consumption of this process is high. In addition, the crude product of fucoxanthin is extracted by this method without separation, and the purity is low

Method used

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  • Preparation of copper algae algal powder and extraction method of fucoxanthin in the algal powder
  • Preparation of copper algae algal powder and extraction method of fucoxanthin in the algal powder
  • Preparation of copper algae algal powder and extraction method of fucoxanthin in the algal powder

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Experimental program
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Effect test

Embodiment 1

[0050] Using manual salvage, select the time period with weak ambient light (early morning or evening) to harvest fresh copper algae, and use shade cloth to cover the harvested algae. After harvesting, transfer the copper algae to a cool workshop with an ambient light of about 180Lux. Immediately use clean seawater to rinse and soak fresh copper algae. The seawater temperature is about 20°C and the salinity is 30‰ to fully remove the mud attached to the copper algae. Sand, small plankton, hook shrimp and other organisms. Quickly rinse copper algae for 1 minute with clean fresh water at a temperature of about 20°C. Spread the cleaned copper algae on a rack, remove the miscellaneous algae manually, drain the water and dry in the shade for 12 hours.

[0051] The fully drained semi-shade-dried copper algae was transferred to an electric heating oven, dried at 55° C. for 20 hours, turned every 1 hour, dried continuously for 12 hours, and fed with nitrogen at 20 L / min. The dried c...

Embodiment 2

[0055] Harvest fresh copper algae from the cultivation sea area, and use shade cloth to cover the harvested algae. Transfer the copper algae to a cool workshop with an ambient light of about 180Lux, and immediately rinse and soak fresh copper algae with clean sea water. The seawater temperature is about 20°C, and the salinity is 30‰. Plankton, hook shrimp and other organisms. Quickly rinse copper algae for 1 minute with clean fresh water at a temperature of about 20°C. Spread the cleaned copper algae on a rack, remove the algae manually, drain the water and dry in the shade for 12 hours.

[0056] The fully drained semi-shade-dried copper algae was transferred to an electric oven, dried at 60°C for 24 hours, turned every 1 hour, and nitrogen was introduced at 20L / min. The dried copper algae were frozen and ground into powder with liquid nitrogen, and passed through a 90-mesh sieve. Irradiation sterilization treatment of algal powder. Weigh 2g of algal powder, add 6mL of met...

Embodiment 3

[0060] Harvest fresh copper algae from the cultivation sea area, and use shade cloth to cover the harvested algae. Transfer the copper algae to a cool workshop with an ambient light of about 100Lux, and immediately rinse and soak fresh copper algae with clean sea water. The seawater temperature is about 20°C, and the salinity is 30‰. Plankton, hook shrimp and other organisms. Quickly rinse copper algae for 1 minute with clean fresh water at a temperature of about 20°C. Spread the cleaned copper algae on a rack, remove the algae manually, drain the water and dry in the shade for 12 hours.

[0061] The fully drained semi-shade-dried copper algae was transferred to an electric oven, dried at 60°C for 24 hours, turned every 1 hour, and nitrogen was introduced at 20L / min. The dried copper algae were frozen and ground into powder with liquid nitrogen, and passed through a 90-mesh sieve. Irradiation sterilization treatment of algal powder. Weigh 2g of algal powder, add 6mL of met...

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Abstract

The invention belongs to the technical field of marine biological natural products, and in particular relates to the preparation of a copper algae powder and a method for extracting fucoxanthin in the algae powder; powder, sterilization and other steps to make copper algae powder; add extraction solution and steel balls to copper algae powder, shake and extract for 3-10 minutes under low light, low temperature, and anaerobic conditions, and centrifuge to obtain clear liquid. The pure fucoxanthin can be obtained by liquid chromatography separation and freeze-vacuum drying; the method of the invention has the advantages of high efficiency, simplicity and low cost, provides a basis for comprehensive utilization of biological resources of copper algae, and has potentially important economic value.

Description

technical field [0001] The invention belongs to the technical field of marine biological natural products, and particularly relates to a preparation method of copper algae algal powder and a method for extracting fucoxanthin in the algal powder. Background technique [0002] Copper algae (Sargassum horneri) is a floating growth of large brown algae, widely distributed in the northern waters of my country, has the characteristics of wide adaptability, strong stress resistance, easy cultivation, etc. It is not only an important part of the coastal ecosystem, but also an important Economic brown algae. [0003] Fucoxanthin (also known as fucoxanthin) is a carotenoid substance composed of carbon, hydrogen and oxygen, widely distributed in some diatoms and large brown algae. Due to its many conjugated double bonds in its chemical structure, it has antioxidant properties and can effectively scavenge free radicals in living organisms. Fucoxanthin promotes the energy consumption of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D303/32C07D301/32
CPCC07D301/32C07D303/32
Inventor 王广策顾文辉何林文解修俊王旭雷牛建峰郇丽
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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