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Red algae extract as well as preparation method and application thereof

A technology of red algae extract and red algae powder, which is applied in the field of marine biology, can solve problems such as high cost and long process flow, and achieve the effects of improving the degree of deep processing, increasing economic value, and reducing production costs

Pending Publication Date: 2022-06-21
山东萨科睿德生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the operation of dissolving the target product in liquid to separate it from the algal body is called "forward" operation. This "forward" operation requires the use of a large amount of solvent to extract the target product, and the target product is extracted from the solvent After being separated from the system, further operations such as evaporation and alcohol analysis are required, which has the disadvantages of long process flow and high cost

Method used

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  • Red algae extract as well as preparation method and application thereof
  • Red algae extract as well as preparation method and application thereof
  • Red algae extract as well as preparation method and application thereof

Examples

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Embodiment 1

[0027] Determination of the concentration of ethanol in water

[0028] When the ethanol aqueous solution reaches a specific concentration, the polysaccharide cannot be dissolved in the solution. First, the concentration of the ethanol aqueous solution that meets the technological requirements is determined through experiments. Anhydrous ethanol and distilled water were prepared with different concentrations of ethanol aqueous solutions by mass percentage, and 2g of commercially available carrageenan (Zhenpai (Fujian) Marine Biotechnology Co., Ltd., food additive grade) and agar (Hainan Dafu agar) were added to each 10ml of the ethanol aqueous solution. Factory, food additive grade), disperse uniformly and stir at 60°C for 2 hours to observe the appearance of carrageenan / agar. The results are shown in Table 1.

[0029] Table 1

[0030]

[0031] According to the appearance change of polysaccharide particles, it is determined to use 40%-90% by mass ethanol aqueous solution, i...

Embodiment 2

[0033] The present embodiment provides a preparation method of red algae extract comprising the following steps:

[0034] 1) Pulverize and pass through a 100-mesh sieve to obtain dry algal powder (Lianyungang Dingmai Food Co., Ltd., food grade) of dried algae. Add 100g dry algae powder and 400ml 40% ethanol aqueous solution to a 1000ml conical flask, mix, add 25g sodium hydroxide (analytical grade) under stirring, seal the conical flask with a plastic film, and stir until the sodium hydroxide is completely After dissolving, place the conical flask in a constant temperature water bath at 65°C and continue stirring for 2 hours. After slightly cooling down to 40-50°C, use a 300-mesh polypropylene filter cloth to filter on a Buchner funnel to obtain a wet solid powder material of about 220g.

[0035] 2) 200g of the wetted solid powder is placed in a 1L three-necked flask, 600ml of 1,2-propanediol (Dow, food grade) and 25g of citric acid (analytical grade) are added, and the bottl...

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Abstract

The embodiment of the invention discloses a red algae extract as well as a preparation method and application thereof. The preparation method comprises the following steps: suspending and dispersing red algae powder in an ethanol water solution with the mass percent concentration of 40-90%, adding alkali, stirring, and carrying out solid-liquid separation to obtain an intermediate solid phase; and suspending and dispersing the intermediate solid phase in an organic solvent, adding acid, stirring, and carrying out solid-liquid separation to obtain the red algae extract. The preparation process disclosed by the invention is high in operability, relatively simple in flow and low in organic solvent consumption, and is beneficial to reducing the production cost. The red algae extract disclosed by the invention has the biological activity of inhibiting melanogenesis, can be used for preparing medicines, foods or cosmetics with specific whitening effects, improves the deep processing degree of red algae, and further improves the economic value of red algae products.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of marine biology, in particular to a red algae extract and a preparation method and application thereof. Background technique [0002] Large-scale marine red algae (hereinafter referred to as red algae) include lily, gracilaria, laver, etc. The main components of the dried algae include polysaccharides, proteins, lipids, inorganic salts, and pigments. Red algae are an important source of polysaccharides such as agar and carrageenan. The extracted polysaccharides such as agar and carrageenan are widely used in many industries as thickeners and texture stabilizers. The deep-processed products have various physiological functions, including bidirectional immune regulation, Cell protection, anti-light damage, promoting cell activity, reducing freezing damage, etc. Therefore, the development of extracts based on red algae is very necessary to increase the added value of products and im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/12A61K8/9717A61K8/73A61Q19/02A61K31/729A61K36/04A61P17/00
CPCC08B37/0039A61K8/9717A61K8/73A61Q19/02A61K31/729A61K36/04A61P17/00A61K2236/333A61K2236/53
Inventor 李善慧
Owner 山东萨科睿德生物技术有限公司
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