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Low-molecular-weight seaweed dietary fiber as well as preparation method and application thereof

A seaweed dietary fiber, low molecular weight technology, applied in application, dairy products, food science and other directions, can solve problems such as rare reports on the industrial production of seaweed dietary fiber, achieve strong acid and alkali resistance, reduce production costs, and good hydrophilicity Effect

Active Publication Date: 2021-02-05
山东金亿嘉食品科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Seaweed contains a large amount of dietary fiber, and dietary fiber becomes the "seventh largest nutrient" after sugar, protein, fat, water, minerals and vitamins, however At present, there are few reports on the industrial production of seaweed dietary fiber in China, and land plant resources are mostly used for production. Therefore, it is of great significance to expand the development and application of seaweed dietary fiber resources.

Method used

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  • Low-molecular-weight seaweed dietary fiber as well as preparation method and application thereof
  • Low-molecular-weight seaweed dietary fiber as well as preparation method and application thereof
  • Low-molecular-weight seaweed dietary fiber as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Embodiment 1: A kind of low molecular weight seaweed dietary fiber is prepared by the following method:

[0051] (1) Acid-base pretreatment: After washing the seaweed, soak it in 5wt% sodium hydroxide solution for alkali treatment. The soaking temperature is 90°C, and the soaking time is 2h. % oxalic acid solution for acid treatment, the soaking temperature is 30°C, and the soaking time is 2h, after washing with clear water and filtering impurities, the pretreated seaweed is obtained;

[0052] (2) Softening treatment: adding the pretreated seaweed into 3wt% sodium dihydrogen phosphate solution for soaking and softening, the soaking temperature is 30°C, the soaking time is 3h, after washing with water and filtering impurities, the softened seaweed is obtained;

[0053] (3) Immobilized enzyme treatment: ①Add coarse agar powder to 0.1mol / L hydrochloric acid solution, the ratio of solid to liquid is 1:100, soak at 30°C for 3 hours, then filter and discard the liquid to obta...

Embodiment 2

[0061] Embodiment 2: A kind of low molecular weight seaweed dietary fiber is prepared by the following method:

[0062] (1) Acid-base pretreatment: After washing the seaweed, add it to 6.5wt% sodium hydroxide solution and soak it for alkali treatment. The soaking temperature is 85°C and the soaking time is 2.5h. Soak in 3wt% oxalic acid solution for acid treatment, the soaking temperature is 28°C, the soaking time is 2.5h, after washing with clear water and filtering impurities, the pretreated seaweed is obtained;

[0063] (2) Softening treatment: adding the pretreated seaweed to 4wt% sodium dihydrogen phosphate solution for soaking and softening, the soaking temperature is 28°C, the soaking time is 3.5h, after washing with water and filtering impurities, the softened seaweed is obtained;

[0064] (3) Immobilized enzyme treatment: ①Add coarse agar powder to 0.1mol / L hydrochloric acid solution, the ratio of solid to liquid is 1:100, soak at 35°C for 2.5h, then filter and discar...

Embodiment 3

[0072] Embodiment 3: A kind of low molecular weight seaweed dietary fiber is prepared by the following method:

[0073](1) Acid-base pretreatment: After cleaning the seaweed, soak it in 8wt% sodium hydroxide solution for alkali treatment. The soaking temperature is 80°C, and the soaking time is 3h. % oxalic acid solution for acid treatment, the soaking temperature is 25°C, and the soaking time is 3h, after washing with clear water and filtering impurities, the pretreated seaweed is obtained;

[0074] (2) Softening treatment: adding the pretreated seaweed to 5wt% sodium dihydrogen phosphate solution for soaking and softening, the soaking temperature is 25° C., and the soaking time is 4 hours. After washing with water and filtering impurities, the softened seaweed is obtained;

[0075] (3) Immobilized enzyme treatment: ①Add coarse agar powder to 0.1mol / L hydrochloric acid solution, the ratio of solid to liquid is 1:100, soak at 40°C for 2h, then filter and discard the liquid to ...

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Abstract

The invention relates to a low-molecular-weight seaweed dietary fiber as well as a preparation method and application thereof. The preparation method of the low-molecular-weight seaweed dietary fibercomprises the following steps of (1) acid-alkali pretreatment: carrying out alkali treatment and acid treatment on seaweed, washing with water, and filtering impurities to obtain pretreated seaweed; (2) softening treatment: soaking and softening the pretreated seaweed, cleaning with water, and filtering impurities to obtain softened seaweed; and (3) immobilized enzyme treatment: preparing an aqueous solution of immobilized enzyme from the immobilized enzyme, adding the aqueous solution into the softened seaweed in the step (2), reacting for 40-60 minutes under the conditions that the temperature is 40-60 DEG C and the pH value is 7.0-9.0 so as to carry out enzymolysis on insoluble fibers, carrying out enzyme deactivation treatment, and then carrying out filtering, drying and crushing. Thepreparation method of the low-molecular-weight seaweed dietary fiber has the effects of simple production process, high production efficiency and high raw material utilization rate.

Description

technical field [0001] The application relates to the technical field of seaweed processing, more specifically, it relates to a low molecular weight seaweed dietary fiber and its preparation method and application. Background technique [0002] Seaweed is the general term for marine algae such as kelp, seaweed, wakame, and agarose. Common marine algae can be divided into red algae, brown algae, and green algae; seaweed is rich in dietary fiber, seaweed polysaccharides, mannitol, amino acids, proteins, Vitamins and trace elements such as potassium, iron, calcium, phosphorus, iodine, selenium, and cobalt; among them, dietary fiber is a kind of fiber that is not decomposed by human endogenous enzymes, is not digested and absorbed by the small intestine of the human body, and can be partially or fully fermented in the large intestine The edible plant-based ingredients have many physiological functions such as laxative, regulating and controlling blood sugar and lowering blood fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/21A23L29/256A23C9/154
CPCA23L33/21A23L29/256A23C9/154
Inventor 赵月辉
Owner 山东金亿嘉食品科技有限公司
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