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Laminaria japonica polysaccharide, its preparation method and application

A technology of kelp polysaccharide and kelp, applied in the field of kelp polysaccharide and its preparation, can solve the problems of algal growth and development affected by environmental factors, low extraction rate of hijiki polysaccharide, and difficulty in application and promotion, and improve the quality of cigarette smoking , good anti-oxidation effect and high extraction rate

Active Publication Date: 2012-03-07
CHINA TOBACCO GUANGDONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (application number 200610128282.9) discloses a hijiki polysaccharide and its application in tobacco, (application number 200610128283.3) hijiki water extract and its application in tobacco, and (Application No. 200610128284.8) Hijiki ethanol extract and its application in tobacco, but there are few kinds of Hijiki, and the growth and development of its algae are obviously affected by environmental factors, so the yield is less, and the polysaccharides of Hijiki The extraction rate is not high, and there are certain difficulties in its application and promotion

Method used

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  • Laminaria japonica polysaccharide, its preparation method and application
  • Laminaria japonica polysaccharide, its preparation method and application
  • Laminaria japonica polysaccharide, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Extraction: After the kelp is crushed into 10-mesh kelp powder, take 50g and put it in a container, mix it with deionized water 1:20, adjust the pH value of the solution to 1.5 with hydrochloric acid, and extract in an oil bath at 110°C for 5 hours ;

[0031] (2) Concentration: adjust the pH value of the solution to 6.3 with potassium hydroxide, filter and remove the kelp residue to obtain the extract, and concentrate the extract to a concentrated solution with a solid content of 35%;

[0032] (3) Alcohol precipitation: add absolute ethanol to the concentrated solution, after mixing evenly, the final concentration of ethanol is 70% of the volume fraction of the mixture, let stand at 0°C for 4 hours, filter and remove the supernatant, and polysaccharides precipitate;

[0033] (4) Drying: freeze-dry the polysaccharide precipitate to obtain the target product, and the obtained product number is laminarin 1#.

[0034] The yield of laminarin 1# extract was 10.71%, the I...

Embodiment 2

[0036] (1) Extraction: After crushing the kelp into 20-mesh kelp powder, take 50g and put it in a container, mix it with deionized water 1:25, adjust the pH value of the solution to 2.5 with hydrochloric acid, and extract in an oil bath at 115°C for 3 hours ;

[0037] (2) Concentration: adjust the pH value of the solution to 6.5 with potassium hydroxide, filter and remove the kelp residue to obtain the extract, and concentrate the extract to a concentrated solution with a solid content of 40%;

[0038] (3) Alcohol precipitation: add absolute ethanol to the concentrated solution, after mixing evenly, the final concentration of ethanol is 75% of the volume fraction of the mixture, let stand at 2°C for 6 hours, filter and remove the supernatant, and polysaccharides precipitate;

[0039] (4) Drying: Freeze-dry the polysaccharide precipitate to obtain the target product, and the obtained product number is laminarin 2#.

[0040] The yield of laminarin 2# extract was 11.57%, the IC5...

Embodiment 3

[0042] (1) Extraction: After the kelp is crushed into 40 mesh kelp powder, take 50g and put it in a container, mix it with deionized water 1:30, adjust the pH value of the solution to 2.0 with hydrochloric acid, and extract in an oil bath at 110°C for 5 hours ;

[0043] (2) Concentration: adjust the pH value of the solution to 6.4 with potassium hydroxide, filter and remove the kelp residue to obtain the extract, and concentrate the extract to a concentrated solution with a solid content of 45%;

[0044] (3) Alcohol precipitation: add absolute ethanol to the concentrated solution, after mixing evenly, the final concentration of ethanol is 80% of the volume fraction of the mixture, let stand at 3°C ​​for 8 hours, filter and remove the supernatant, and polysaccharides precipitate;

[0045] (4) Drying: freeze-dry the polysaccharide precipitate to obtain the target product, and the obtained product number is laminarin 3#.

[0046] The yield of laminarin 3# extract was 12.50%, the...

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Abstract

The invention discloses a laminaria japonica polysaccharide, which is prepared by a method in the steps of: adding water into crushed laminaria japonica, adjusting the pH value to 1-4, conducting extraction for 2-5h at a temperature of 100-120DEG C; carrying out filtration so as to obtain an extracting solution, the pH value of which is adjusted to 6.3-7.0 by potassium-containing alkali, concentrating the extracting solution to a concentrated solution with solid content of 35-48%; adding ethanol into the concentrated solution and mixing them well, then leaving the solution to stand at a temperature of 4DEG C for 4-12h, and performing filtration so as to obtain a polysaccharide precipitate; implementing freeze drying, thus obtaining the laminaria japonica polysaccharide. The laminaria japonica polysaccharide, accounting for 0.01-1.0% of cut tobacco by mass, can be prepared into a solution. And the laminaria japonica polysaccharide solution can be added into cut tobacco or a filter tip through sprinkling so as to obviously enhance cigarette smoking quality, and reduce stimulation on a nasal cavity and throat. Accordingly, the laminaria japonica polysaccharide enables fine and smoothsmoke, soft mouthfeel, maintained aroma, and no side effect. The laminaria japonica polysaccharide provided in the invention has the advantages of no fishy smell, high extraction rate, easy acquisition, low cost and good oxidation resistance.

Description

technical field [0001] The invention relates to the field of extraction of effective components of marine plants, in particular to a laminarin and its preparation method and application. Background technique [0002] Kelp (Laminaria japonica), also known as kelp, is a marine plant with high edible and medicinal value. It contains a variety of active substances that are beneficial to the human body, and has the reputation of "the crown of alkaline food". In addition, kelp is rich in resources and low in price in our country, and it is a food resource with great potential. Laminar polysaccharide is one of the active ingredients extracted from kelp. Studies have shown that laminarin has anti-oxidation, anti-radiation, lowering blood fat, lowering blood sugar, regulating immune function and other health effects. At present, there are few invention patents on the application of laminarin. For example, Dalian University of Technology (application number 200710157574.X) discloses...

Claims

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Application Information

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IPC IPC(8): C08B37/00A24B15/30
Inventor 陈森林沈光林卓浩廉汪军霞金保锋伍锦鸣崔春赵谋明卢茳虹
Owner CHINA TOBACCO GUANGDONG IND
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