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New technology for extracting enteromorpha prolifera dietary fiber

A technology of dietary fiber and enteromorpha, applied in the field of food additives, can solve the problems of low yield of green algae, limited utilization, hard fiber, etc., and achieve the effect of expanding usage, improving yield and product characteristics

Inactive Publication Date: 2014-03-19
QINGDAO JIARUI BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the development and research on algae food are mostly concentrated on red algae and brown algae. This is because the utilization of green algae has been limited due to the low yield; It is not accepted by most consumers. Therefore, the development of food additives represented by Enteromorpha powder can not only turn the waste of Enteromorpha off the coast of Qingdao into treasure, but also provide a new way for the development and utilization of green algae resources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Enteromorpha dietary fiber, the specific preparation steps are as follows:

[0025] (1) Pretreatment: Wash the fresh Enteromorpha with water to remove the sediment and other sundries in the raw materials;

[0026] (2) Drying and crushing: drying and crushing at 60°C, passing through a 80-mesh sieve;

[0027] (3) Alkali treatment: Alkaline hydrolysis with 60g / L sodium hydroxide solution for 10 minutes at 70°C, the amount of lye should be soaked in Enteromorpha;

[0028] (4) Protease treatment: add 2% protease, under the conditions of pH 5.0 and 25°C, enzymatically hydrolyze for 30 min with the help of ultrasonic waves, and boil to inactivate the enzyme after enzymolysis;

[0029] (5) α-amylase treatment: add 0.3% α-amylase again, under the conditions of pH 6.0 and 30°C, enzymatically hydrolyze for 20 minutes with the help of ultrasonic waves, and boil to kill the enzyme after enzymolysis;

[0030] (6) Filtration: filter the enteromorpha liquid after alkaline hydrolysis...

Embodiment 2

[0034] Enteromorpha dietary fiber, the specific preparation steps are as follows:

[0035] (1) Pretreatment: Wash the fresh Enteromorpha with water to remove the sediment and other sundries in the raw materials;

[0036] (2) Drying and crushing: drying and crushing at 60°C, passing through a 80-mesh sieve;

[0037] (3) Alkali treatment: Alkaline hydrolysis with 60g / L sodium hydroxide solution for 20 minutes at 70°C, the amount of lye should be soaked in Enteromorpha;

[0038] (4) Protease treatment: add 1% protease, under the conditions of pH 5.0 and 25°C, enzymatically hydrolyze for 60 min with the assistance of ultrasonic waves, and boil to inactivate the enzyme after enzymolysis;

[0039] (5) α-amylase treatment: add 0.1% α-amylase again, under the conditions of pH 6.0 and 30°C, enzymatically hydrolyze for 30 min with the help of ultrasonic waves, and boil to kill the enzyme after enzymolysis;

[0040] (6) Filtration: filter the enteromorpha liquid after alkaline hydrolys...

Embodiment 3

[0044] Enteromorpha dietary fiber, the specific preparation steps are as follows:

[0045] (1) Pretreatment: Wash the fresh Enteromorpha with water to remove the sediment and other sundries in the raw materials;

[0046] (2) Drying and crushing: drying and crushing at 60°C, passing through a 80-mesh sieve;

[0047] (3) Alkali treatment: Alkaline hydrolysis with 60g / L sodium hydroxide solution for 15 minutes at 70°C, the amount of lye should be soaked in Enteromorpha;

[0048] (4) Protease treatment: Add 1.5% protease, under the conditions of pH 5.0 and 25°C, enzymatically hydrolyze for 45 minutes with the help of ultrasonic waves, and boil to inactivate the enzyme after enzymolysis;

[0049] (5) α-amylase treatment: Add 0.2% α-amylase again, under the conditions of pH 6.0 and 30°C, enzymatically hydrolyze for 25 minutes with the assistance of ultrasonic waves, and boil to kill the enzyme after enzymolysis;

[0050] (6) Filtration: filter the enteromorpha liquid after alkalin...

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Abstract

The invention provides a new technology for extracting enteromorpha prolifera dietary fiber, and enteromorpha prolifera water-soluble dietary fiber (SDF) and enteromorpha prolifera water-insoluble dietary fiber (IDF) are prepared by a mild alkaline hydrolysis and ultrasonic-assisted two-step enzymatic hydrolysis method. The extracted ultrasonic-assisted dietary fiber product is creamy white in color, can be used as high-quality dietary fiber and an ideal food additive, and has the expansibility of 18120 mL / g and the water holding capacity of 1230% which are much higher than the functional indexes (expansibility of 4 mL / g and water holding capacity of 400%) of western country common standard wheat bran dietary fiber. Under the technology conditions, the yield of enteromorpha prolifera dietary fiber is 45% or more, wherein the SDF content is 12.5% or more, and the product purity is 85% or more, and thus the product produced by employing the new technology has good product application and industrialized production popularization prospect.

Description

technical field [0001] The invention relates to a new method for extracting dietary fiber from enteromorpha enteromorpha, a novel food additive, and belongs to the field of food additives. Background technique [0002] Enteromorpha is a large green algae, commonly known as moss strips, green sea moss, etc., is an algae plant of the genus Enteromorpha in the order Ulvaceae of Chlorophyta phylum Ulvaceae. Moss and so on. Enteromorpha, as a natural wild green algae in coastal beaches, has a particularly strong natural reproductive ability and a huge output. In recent years, large-scale sudden green tides of Enteromorpha have continuously erupted in my country's coastal waters, which have caused serious damage to human sea activities (maritime sports, marine fisheries, ship traffic, etc.), seawater utilization, coastal landscape, marine ecological environment and people's normal life. Serious impact. [0003] Enteromorpha is rich in nutrients, rich in carbohydrates, protein, c...

Claims

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Application Information

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IPC IPC(8): A23L1/337A23L1/308A23L33/22
CPCA23L17/60A23L33/21A23V2002/00
Inventor 董书阁侯文燕董静静段智岗王金波侯文杰
Owner QINGDAO JIARUI BIOLOGICAL TECH
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