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A method for industrially preparing fucosides

A technology of fucoside and red algae, which is applied in chemical instruments and methods, preparation of sugar derivatives, organic chemistry, etc., can solve the problems of enlarging the effective volume of equipment and restricting industrial application, and achieves industrialization and clean production with simple process Gentle, high extraction and purity effects

Active Publication Date: 2021-06-11
PROYA COSMETICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Supercritical CO 2 The extraction preparation method has strong extraction ability, high extraction rate and strong selectivity, but the extremely high pressure limits the expansion of the effective volume of the equipment, which restricts industrial applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for industrially preparing fucosides, using the following steps:

[0016] A: Collect healthy and healthy red algae from the artificial breeding pond, wash them clean, and remove the attached organisms;

[0017] B: Weigh 5 kg of Rhodophyllum palmatum obtained in step A and place it in a seawater culture tank filled with a salt concentration lower than 35.9‰, increase the salt concentration in the culture tank to 36.5‰, and combine pretreatment with heat stress and high salt concentration at 25°C Take out the Rhodophylla palmatum after 10 minutes, and then transfer it to seawater with a salt concentration lower than 35.9‰ at 20°C for recovery culture for 1 hour;

[0018] C: Cut the red algae sample obtained in step B into small pieces of about 1 cm, and put it into the extraction kettle of the subcritical fluid extraction device according to the liquid-to-material ratio of 10:1 (L:kg), and the extraction agent is 20% Ethanol aqueous solution, under the process c...

Embodiment 2

[0020] A method for industrially preparing fucosides, using the following steps:

[0021] A: Collect healthy and healthy red algae from the artificial breeding pond, wash them clean, and remove the attached organisms;

[0022] B: Weigh 5 kg of Rhodophyllum palmifolia obtained in step A and place it in a seawater culture tank with a salt concentration lower than 35.9‰, increase the salt concentration in the culture tank to 37.0‰, and pretreat it under heat stress and high salt concentration at 25°C Take out the Rhodophylla palmatum after 30 minutes, and then transfer it to seawater with a salt concentration lower than 35.9‰ at 20°C for recovery culture for 1 hour;

[0023] C: Cut the red algae sample obtained in step B into small pieces of about 1 cm, and put it into the extraction kettle of the subcritical fluid extraction device according to the liquid-to-material ratio of 20:1 (L:kg), and the extraction agent is 10% Ethanol aqueous solution, under the process conditions of ...

Embodiment 3

[0025] A method for industrially preparing fucosides, which is prepared by the following steps:

[0026] A: Collect healthy and healthy red algae from the artificial breeding pond, wash them clean, and remove the attached organisms;

[0027] B: Weigh 5 kg of Rhodophyllum palmifolia obtained in step A and place it in a seawater culture tank with a salt concentration lower than 35.9‰, increase the salt concentration in the culture tank to 37.5‰, and pretreat at 30°C under heat stress and high salt concentration Take out the Rhodophylla palmatum after 20 minutes, and then transfer it to seawater with a salt concentration lower than 35.9‰ at 20°C for recovery culture for 2 hours;

[0028] C: Cut the red algae sample obtained in step B into small pieces of about 1cm, and put it into the extraction kettle of the subcritical fluid extraction device according to the liquid-to-material ratio of 30:1 (L:kg), and the extraction agent is 10% Ethanol aqueous solution, under the process co...

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Abstract

The invention relates to a method for industrially preparing fucosides, which is characterized in that the following steps are adopted: A. collect an appropriate amount of healthy red algae in a good growth state from an artificial breeding pond, wash them clean, and remove the attached organisms; The weight of the red algae was placed in a seawater culture tank with a salt concentration lower than 35.9‰ for combined pretreatment of heat stress and high salt concentration; Red algae: The liquid-to-solid ratio of 10-50 L extractant is put into the extraction kettle of the subcritical fluid extraction device, extracted 1-3 times, each extraction time is 5-15min, and the extract flows through the collector to the collector , vacuum rotary evaporation to obtain a concentrated solution; put the concentrated solution in a refrigerator at 4°C to cool until the precipitation is complete, filter under reduced pressure, collect the precipitate, and dry it in vacuum at 65°C to constant weight to obtain fucoside. The invention has the advantages of high extraction rate and purity, simple and mild process, and can realize industrialization and clean production.

Description

technical field [0001] The invention relates to the technical field of industrial production, in particular to a method for industrially preparing fucosides. Background technique [0002] Fucoside is a kind of natural galactosylglycerol, which is widely distributed in various species of Rhodophyta, generally accounting for 1.5-8.0% of the dry weight of the algal body, and there are three isomeric forms, namely fucoside, D Type Isofuccoside and L-type Isofucoside. Fucoside is the main photosynthetic product and soluble low-molecular carbohydrate in red algae of the palmate tree, and has the same effect as sucrose in higher plants. Studies have shown that in addition to participating in osmotic pressure regulation, fucoside also has anti-oxidation and immune system activation activities in vitro. It can effectively inhibit melanin production when used in cosmetics, has moisturizing, whitening and anti-oxidation effects, and has high added value. [0003] As an intertidal alg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07H15/04C07H1/08
CPCC07H1/08C07H15/04
Inventor 岳娟刘丽仙陈玉燕毕永贤陈斌席长洪蒋丽刚
Owner PROYA COSMETICS
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