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High-efficiency extraction method for alga polyphenols

An extraction method and algae technology, which is applied in the direction of medical raw materials derived from algae, plant/algae/fungus/moss components, pharmaceutical formulas, etc., can solve the problems of less extraction, inconspicuousness, and long extraction time, so as to improve extraction rate effect

Active Publication Date: 2017-12-15
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the purity of polyphenols produced by centrifugal partition extraction method and supercritical extraction method is relatively high, the extraction time is relatively long and t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The efficient method for preparing seaweed polyphenols provided in this example is as follows:

[0031] (1) Wakame sporophyll selection: select the wakame sporophyll with a water content of 10% as a raw material, and remove grass sticks, silt, etc. attached to the wakame sporophyll.

[0032] (2) Drying and powdering: the selected wakame spores are dried in a 60°C drying oven for 48 hours until the water content of the wakame spores is 6%, crushed with a high-speed drug grinder, and then passed through a 100-mesh sieve .

[0033] (3) Soaking and ultrasonication: mix wakame spore leaf powder and water at a weight ratio of 1:30, and soak for 6 hours. The obtained mixture was put into an ultrasonic cell disruptor, and the power was 300W, and the ultrasonic wave was used for 4 hours.

[0034] (4) Enzymolysis: Enzymolyze the solution after ultrasonication, adjust the pH to 5.0 with citric acid, add pectinase 12×10 4 U and 1.0×10 4 The cellulase of U is hydrolyzed at a tem...

Embodiment 2

[0042] The efficient method for preparing seaweed polyphenols provided in this example is as follows:

[0043] (1) Wakame sporophyll selection: select the wakame sporophyll with a water content of 10% as a raw material, and remove grass sticks, silt, etc. attached to the wakame sporophyll.

[0044] (2) Drying and powdering: the selected wakame spores are dried in a 60°C drying oven for 60 hours until the water content of the wakame spores is 6%, crushed with a high-speed drug grinder, and then passed through a 100-mesh sieve .

[0045] (3) Soaking and ultrasonication: mix wakame spore leaf powder and water at a weight ratio of 1:30, and soak for 4 hours. The obtained mixture was put into an ultrasonic cell disrupter, and the power was 400W, and the ultrasonic wave was ultrasonicated for 3 hours.

[0046] (4) Enzymolysis: Enzymolyze the solution after ultrasonication, adjust the pH to 5.0 with citric acid, add pectinase 12×10 4 U and 1.0×10 4 The cellulase of U is hydrolyzed ...

Embodiment 3

[0054] The efficient method for preparing seaweed polyphenols provided in this example is as follows:

[0055] (1) Wakame sporophyll selection: select the wakame sporophyll with a water content of 10% as a raw material, and remove grass sticks, silt, etc. attached to the wakame sporophyll.

[0056] (2) Drying and powdering: the selected wakame spores are dried in a 60°C drying oven for 72 hours until the moisture content of the wakame spores is 6%, crushed with a high-speed drug grinder, and then passed through an 80-mesh sieve .

[0057] (3) Soaking and ultrasonication: mix the wakame spore leaf powder and water at a weight ratio of 1:20, and soak for 4 hours. The obtained mixture was put into an ultrasonic cell disrupter, and the power was 400W, and the ultrasonic wave was used for 5 hours.

[0058] (4) Enzymolysis: Enzymolyze the solution after ultrasonication, adjust the pH to 5.0 with citric acid, add pectinase 10×10 4 U and 0.8×10 4 The cellulase of U is hydrolyzed a...

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Abstract

The invention relates to a high-efficiency extraction method for alga polyphenols. The alga polyphenols extracted through the method have high total content of the polyphenols, and reserves good anti-oxidation activity. Algae contain Sporophyll of Undaria pinnatifida Suringar, laver, Sargassum fusiforme, kelp and Ascophyllum Nodosum. The Sporophyll of Undaria pinnatifida Suringar is used as an example in the invention. The extraction method comprises the following steps: 1) choosing of dry Sporophyll of Undaria pinnatifida Suringar; 2) drying and powdering; 3) soaking and ultrasonic treatment; 4) enzymatic hydrolysis, 5) high-temperature closed extraction; 6) centrifuging; 7) rotary evaporation recovery; 8) freeze-drying and preservation; and 9) chemical process detection of the content and the anti-oxidation activity of the obtained phenols. The method has the advantages of full extraction of the polyphenols from the algae, increase of the content of the total phenols in the algae as possible without destroying the anti-oxidation activity, full utilization of the algae, realization of the easy absorption of nutrients in the algae by human bodies, good bioactivity of the polyphenols, abundant raw materials and low cost.

Description

technical field [0001] The invention relates to a processing method of algae products, in particular to an efficient extraction method of polyphenols in algae. Background technique [0002] Seaweed is rich in nutrients and contains a lot of dietary fiber, alginate, fucoidan sulfate, iodine, mannitol, polysaccharides, polyphenols, etc. And the polyphenols in seaweed have good antioxidant capacity, anti-inflammation, lowering blood sugar and improving immunity. However, the polyphenols in seaweed are not easy to be extracted directly. The traditional extraction process only uses organic solvent extraction. This method not only takes a long extraction period, but also the antioxidant activity of the obtained polyphenols will be affected to some extent. The recent more advanced polyphenol extraction methods include centrifugal partition extraction, supercritical fluid extraction, hydraulic extraction, and enzyme-assisted extraction. Although the purity of the polyphenols produ...

Claims

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Application Information

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IPC IPC(8): A61K36/03A61K36/02A61P39/06A61P29/00A61P3/10A61P37/04
CPCA61K36/02A61K36/03A61K2236/13A61K2236/15A61K2236/17A61K2236/19A61K2236/333A61K2236/37A61K2236/51A61K2236/53
Inventor 启航许喆董秀芳白颖蒋迪姜鹏飞
Owner DALIAN POLYTECHNIC UNIVERSITY
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