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Sodium alginate solution capable of effectively improving viscosity and thickening property as well as preparation method and application thereof

A technology of sodium alginate and calcium alginate, which is applied in dyeing, textiles and papermaking, etc., can solve problems such as unevenness, and achieve the effect of improving viscosity and thickening properties

Pending Publication Date: 2020-06-05
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The "exogenous method" is to drip alginate solution into CaCl by diffusion 2 The gel is formed in the solution, and the speed of gel formation is relatively fast, but it is not uniform. The calcium ion has a concentration gradient from the inside to the outside of the gel, so the hardness is different. Generally, the internal gel strength is weak, and the external gel strength is weak. Strong glue strength

Method used

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  • Sodium alginate solution capable of effectively improving viscosity and thickening property as well as preparation method and application thereof
  • Sodium alginate solution capable of effectively improving viscosity and thickening property as well as preparation method and application thereof
  • Sodium alginate solution capable of effectively improving viscosity and thickening property as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Weigh 1.5g and 0.03g of sodium alginate (raw material) and calcium alginate powder respectively, pour 98.47g of deionized water into it at room temperature, and mix quickly and evenly.

[0026] 2) Set the mechanical stirring speed to 200r / min, and stir for 30min to obtain a mixed solution of sodium alginate (raw material) and calcium alginate.

[0027] 3) Stand still for 12 hours to obtain a sodium alginate solution that effectively improves viscosity and thickening properties. The sodium alginate solution includes the following components in mass percentage: sodium alginate (raw material) 1.5% (w / w), calcium alginate 0.03%, deionized water 98.47%, and its shear viscosity is shown in figure 1 .

Embodiment 2

[0029] 1) Weigh 1.5g and 0.15g of sodium alginate (raw material) and calcium alginate powder respectively, pour 98.35g of deionized water into it at room temperature, and mix quickly and evenly.

[0030] 2) Set the mechanical stirring speed to 200r / min, and stir for 30min to obtain a mixed solution of sodium alginate (raw material) and calcium alginate.

[0031] 3) Stand still for 12 hours to obtain a sodium alginate solution that effectively improves viscosity and thickening properties. The sodium alginate solution includes the following components in mass percentage: sodium alginate (raw material) 1.5% (w / w), calcium alginate 0.15%, deionized water 98.35%, and its shear viscosity is shown in figure 1 .

Embodiment 3

[0033]1) Weigh 1.5g and 0.3g of sodium alginate (raw material) and calcium alginate powder respectively, pour 98.2g of deionized water into it at room temperature, and mix quickly and evenly.

[0034] 2) Set the mechanical stirring speed to 200r / min, and stir for 30min to obtain a mixed solution of sodium alginate (raw material) and calcium alginate.

[0035] 3) Stand still for 12 hours to obtain a sodium alginate solution that effectively improves viscosity and thickening properties. The sodium alginate solution includes the following components in mass percentage: sodium alginate (raw material) 1.5% (w / w), calcium alginate 0.3%, deionized water 98.2%, and its shear viscosity is shown in figure 1 .

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Abstract

The invention provides a sodium alginate solution capable of effectively improving viscosity and thickening property as well as a preparation method and application thereof. The method can be realizedby a "sodium alginate self-gelling method", and comprises the following steps of adding a small amount of calcium alginate powder into the sodium alginate solution with a certain concentration, carrying out mechanically stirring by a stirrer, and carrying out uniformly mixing and dissolving, wherein the principle is that the calcium alginate powder swells and expands in the sodium alginate solution, so that calcium ions combined on the calcium alginate powder are released, or the calcium alginate powder is in contact with and crosslinked with the sodium alginate solution through swelling andexpanding, and specific combination is generated to form uniform gel with extremely weak strength, so that the viscosity and thickening property of the sodium alginate solution are effectively improved. The materials used in the invention are safe and non-toxic materials, the prepared product is excellent in fluidity, the operating method is simple, the used raw materials are readily available, the cost is low, and the sodium alginate solution has wide application prospects and excellent popularization and application values.

Description

technical field [0001] The invention relates to the field of biochemical industry, in particular to a sodium alginate solution that can effectively improve viscosity and thickening properties, and a preparation method and application thereof. Background technique [0002] Sodium Alginate (Sodium Alginate) is a by-product after extracting iodine and mannitol from brown algae kelp or sargassum, and its molecules are composed of β-D-mannuronic acid (β-D-mannuronic, M) and α-L - Guluronic acid (α-L-guluronic, G) is connected by (1→4) bonds, which is a non-toxic natural polysaccharide with good stability, solubility, viscosity and safety. The aqueous solution of sodium alginate has a high viscosity and has been used as a food thickener, stabilizer, emulsifier, etc., and has been widely used in the food industry, printing and spinning industry, and pharmaceutical preparations. Sodium alginate can undergo rapid ion exchange reaction with divalent metal ions except magnesium and me...

Claims

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Application Information

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IPC IPC(8): D06P1/48D06P1/38
CPCD06P1/48D06P1/38
Inventor 方亚鹏胡楚桓
Owner HUBEI UNIV OF TECH