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Processing method of alginic acid

A processing method and technology of alginic acid, applied in the processing field of alginic acid, can solve the problems of lack of microwave-assisted enzymatic hydrolysis, secondary bleaching and fine filtration, degradation, incomplete conversion of raw materials, poor product color, etc., so as to improve product safety. , Shorten the enzymatic hydrolysis time, good effect

Inactive Publication Date: 2020-01-14
青岛聚大洋藻业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the traditional alginic acid production process, there is a lack of microwave-assisted enzymatic hydrolysis, secondary bleaching, fine filtration, degradation and other processes, resulting in incomplete conversion of raw materials in the production process, high energy consumption, high cost, poor color and low quality of the product

Method used

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  • Processing method of alginic acid

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Embodiment 1

[0057] The invention discloses a processing method of alginic acid, which specifically comprises the following steps:

[0058] (1) Soak the brown algae in tap water for 12 hours, then wash until the water is submerged in the brown algae, and wash with water to remove impurities.

[0059] (2) Adding formaldehyde at a concentration of 35% to the color-fixing tank in an amount of 2% of the quality of the brown algae, and fixing the color for 20 hours.

[0060] (3) Start the colloid mill to refine the color-fixed brown algae to obtain glue.

[0061] (4) Add weakly alkaline compound cellulase to the glue, the amount of compound cellulase is 1% of the weight of brown algae, turn on the microwave reaction device, react at a temperature of 30°C for 5h, and start the stirrer for high-speed stirring every 2h 5min.

[0062] (5) Pump the enzymatically hydrolyzed glue into the digester, add 8% sodium carbonate in an amount of 8% of the weight of the brown algae, add 90°C hot water in an ...

Embodiment 2

[0075] The invention discloses a processing method of alginic acid, which specifically comprises the following steps:

[0076] (1) Soak the brown algae in tap water for 16 hours, then wash until the water is submerged in the brown algae, and wash with water to remove impurities.

[0077] (2) Adding concentration of 40% formaldehyde in the color fixing tank, the addition amount is 4% of the quality of brown algae, and fixing the color for 24 hours.

[0078] (3) Start the colloid mill to refine the color-fixed brown algae to obtain glue.

[0079] (4) Add weakly alkaline compound cellulase to the glue, the amount of compound cellulase is 2% of the weight of the brown algae, turn on the microwave reaction device, react for 6 hours at a temperature of 50 ° C, and start the stirrer for high-speed stirring every 2 hours 5min.

[0080] (5) Pump the enzymatically hydrolyzed glue into the digestion pot, add 13% sodium carbonate, the addition amount is 13% of the brown algae weight, ad...

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Abstract

The invention discloses an alginic acid processing method, which specifically comprises the following steps: pretreatment, color fixation, jordaning, microwave-assisted enzymolysis, conversion, dilution, floating, rough filtration, fine filtration, calcification, decalcification, washing, dehydration, degradation, kneading, drying, crushing, iron removal and packaging. Compared with conventional processing methods, the processing method of the invention has the following beneficial effects: in the procedure of enzymolysis, a microwave reaction device is started besides addition of composite cellulase, so enzymolysis is accelerated, enzymolysis efficiency is improved, enzymolysis is more thorough, enzymolysis time can be shortened, cost is reduced, and product quality is improved; during three-stage decalcification treatment, sodium hypochlorite is added, so bleaching and degradation effects can be achieved, and compared with direct introduction of chlorine for bleaching, the method issafer and has better effect; a glue solution is finely filtered, so purity is effectively improved, and product quality and safety are improved; and hydrogen peroxide is added in the procedure of degradation, so the viscosity of alginic acid is remarkably reduced, and sterilization and disinfection effects are achieved.

Description

technical field [0001] The invention relates to a processing method of alginic acid. Background technique [0002] Alginic acid is a natural polysaccharide, and its chemical composition is a linear copolymer formed by 1, 4 bonds of Lu-D-mannuronic acid (M) and a-L-guluronic acid (G), G and M The content of alginic acid has a significant impact on the gelling properties of fibers. Alginic acid exists in the cytoplasm in its natural state and plays a role in strengthening the cell wall. Alginic acid combines with various cations in seawater to form various alginates. The extract obtained from seaweed is usually sodium alginate. [0003] Alginic acid has the functions of suspending, thickening, emulsifying, and binding, and can be used as a microcapsule material or as a coating and film-forming material. It is widely used in food and pharmaceutical industries, such as food: surface quality improver, thickening stabilizer, gel, thickener, health food; medicine: tablet filler...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
CPCC08B37/0003C08B37/0084
Inventor 程跃谟吴仕鹏张璇
Owner 青岛聚大洋藻业集团有限公司