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Preparation of algal polysaccharide and application of algal polysaccharide in cosmetics

A seaweed polysaccharide and seaweed technology, applied in the field of preparation and its application in cosmetics, can solve problems such as complicated procedures, achieve good water solubility, strong anti-oxidation, and delay aging effects

Active Publication Date: 2016-07-20
SHANGHAI FOREST CABIN BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, only in the extraction stage, the method of first extracting with normal temperature water, then ultrasonic treatment in an ice bath, then water extraction at 70-80°C, and finally extraction with alkaline water has the problem of complicated procedures.

Method used

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  • Preparation of algal polysaccharide and application of algal polysaccharide in cosmetics
  • Preparation of algal polysaccharide and application of algal polysaccharide in cosmetics
  • Preparation of algal polysaccharide and application of algal polysaccharide in cosmetics

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Embodiment 1

[0052] The present embodiment provides a kind of preparation method of seaweed polysaccharide, comprising the following steps:

[0053] Step 1: Remove impurities

[0054] According to the solid-to-liquid ratio g / mL (1:20), the dried and pulverized seaweed was refluxed with methanol to extract for 4 hours, filtered, and the filtrate recovered methanol;

[0055] Step 2: Extract

[0056] Extract the dried filter residue with 0.2M hydrochloric acid solution, the solid-liquid ratio of filter residue and hydrochloric acid solution is 1:30, the extraction temperature is 75°C, extract for 2 hours, filter, and put the filtrate under a vacuum of 0.098Mpa Evaporate to near dryness to obtain a semi-fluid crude extract.

[0057] Step 3: Alcohol precipitation

[0058] Slowly add ethanol to the above crude extract, and keep stirring until the ethanol concentration is 50%, let stand for 48 hours, filter, recover ethanol from the filtrate, and set aside.

[0059] Step Four: Dialysis

[00...

Embodiment 2

[0068] The present embodiment provides a kind of preparation method of seaweed polysaccharide, comprising the following steps:

[0069] Step 1: Remove impurities

[0070] According to the solid-to-liquid ratio g / mL (1:30), the dried and crushed seaweed was refluxed with methanol for 2 hours, filtered, and methanol was recovered from the filtrate;

[0071] Step 2: Extract

[0072] Extract the dried filter residue with 0.2M hydrochloric acid solution, the solid-liquid ratio of the filter residue and hydrochloric acid solution is 1:15, the extraction temperature is 70°C, extract for 4 hours, filter, and put the filtrate under a vacuum of 0.085Mpa Evaporate to near dryness to obtain a semi-fluid crude extract.

[0073] Step 3: Alcohol precipitation

[0074] Slowly add ethanol to the above crude extract, and keep stirring until the ethanol concentration is 30%, let stand for 36 hours, filter, recover ethanol from the filtrate, and set aside.

[0075] Step Four: Dialysis

[007...

Embodiment 3

[0078] The present embodiment provides a kind of preparation method of seaweed polysaccharide, comprising the following steps:

[0079] Step 1: Remove impurities

[0080] According to the solid-to-liquid ratio g / mL (1:25), the dried and pulverized seaweed was refluxed with methanol for 3 hours, filtered, and methanol was recovered from the filtrate;

[0081] Step 2: Extract

[0082] Extract the dried filter residue with 0.1M hydrochloric acid solution, the solid-liquid ratio of filter residue to hydrochloric acid solution is 1:20, the extraction temperature is 70°C, extract for 4 hours, filter, and put the filtrate under a vacuum of 0.085Mpa Evaporate to nearly dryness to obtain a semi-fluid crude extract.

[0083] Step 3: Alcohol precipitation

[0084] Slowly add ethanol to the above crude extract, and keep stirring until the ethanol concentration is 40%, let stand for 24 hours, filter, recover ethanol from the filtrate, and set aside.

[0085] Step Four: Dialysis

[008...

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Abstract

The invention provides preparation of algal polysaccharide and application of algal polysaccharide in cosmetics.The preparation method of the algal polysaccharide includes the steps that algae are smashed and then purified with methanol; after methanol in residues is sufficiently removed, acid-soluble polysaccharide in the residues is extracted with a hot acid extraction method; macromolecular polysaccharide ingredients with low bioavailability are removed through ethanol precipitation; after ethanol in the residual solution is recycled, dialysis and freeze-drying are carried out, and the algal polysaccharide is obtained.The molecular weight of the algal polysaccharide is 8-35 kDa, and the algal polysaccharide has significant antioxidation and moisturizing activity and can be applied to the field of cosmetics.Moisturizer prepared from the algal polysaccharide is used on the skin surfaces of the hands, the face, the neck and the like and has the effects of nourishing and moisturizing the skin, reducing wrinkles and delaying ageing.Eye cream prepared from the algal polysaccharide is used around the eyes and has the effects of nourishing and moisturizing the skin, reducing wrinkles and delaying ageing.

Description

technical field [0001] The invention relates to the field of cosmetics, in particular to the preparation of seaweed polysaccharide and its application in cosmetics. Background technique [0002] Seaweeds are algae that grow in the sea and are cryptogamous plants in the plant kingdom. Algae include several different types of organisms that generate energy through photosynthesis. They are generally considered to be simple plants, and the main features are: no vascular tissue, no real differentiation of roots, stems, and leaves; no flowering, no fruits and seeds; no specialized protective tissues for reproductive organs, often directly formed by a single Cells producing spores or gametes; and no embryo formation. A general term for marine algae (Algae), usually attached to the seabed or some solid structure, and is a single plant or a long series of simple plants composed of basal cells. There are many kinds of organisms named after seaweed. These shapes are very different an...

Claims

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Application Information

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IPC IPC(8): C08B37/04A61K8/73A61Q19/00A61Q19/08
CPCA61K8/73A61Q19/001A61Q19/005A61Q19/08C08B37/0003C08B37/0084
Inventor 刘学高宏旗陈贤
Owner SHANGHAI FOREST CABIN BIOLOGICAL TECH
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