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Production method of propylene glycol alginate

A technology of propylene glycol alginate and a production method, applied in the field of marine biochemical industry, can solve problems such as excessive use of propylene oxide, and achieve the effects of reducing propylene oxide, reducing consumption and improving production efficiency

Inactive Publication Date: 2015-05-13
SHANDONG JIEJING GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of production method of propylene glycol alginate aiming at the problem that propylene oxide usage is too much in the production method of existing propylene glycol alginate, this method is under the premise of not affecting product quality, significantly Reduce propylene oxide consumption

Method used

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Examples

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Effect test

Embodiment 1

[0027] The production method of described propylene glycol alginate, comprises the following steps:

[0028] (1) take brown algae as raw material, carry out digestion, filtration, calcification, dehydration and pulverization treatment with brown algae, make the alginic acid water content of gained be 60%;

[0029] (2) granulation is carried out to the alginic acid obtained in step (1), with a particle diameter of 4mm and a particle length of 9mm;

[0030] (3) washing the alginic acid particles obtained in step (2) with methanol until the water content of the particles is 30%;

[0031] (4) Freeze and pulverize alginic acid particles, the temperature is strictly controlled below -50°C, and the alginic acid particles are pulverized to 12 meshes;

[0032] (5) drop alginic acid powder, propylene oxide and catalyzer into reaction kettle and carry out esterification reaction 6 hours under the condition of temperature 45 ℃, wherein the feeding weight ratio of alginic acid powder and ...

Embodiment 2

[0037] The production method of described propylene glycol alginate, comprises the following steps:

[0038] (1) with brown algae as raw material, the brown algae is digested, filtered, calcified, dehydrated and pulverized, so that the obtained alginic acid water content is 65%;

[0039] (2) granulation is carried out to the alginic acid obtained in step (1), with a particle diameter of 4mm and a particle length of 6mm;

[0040] (3) washing the alginic acid particles obtained in step (2) with methanol until the water content of the particles is 36%;

[0041] (4) Freeze and pulverize alginic acid particles, the temperature is strictly controlled below -50°C, and the alginic acid particles are pulverized to 20 meshes;

[0042] (5) drop alginic acid powder, propylene oxide and catalyzer into reaction kettle and carry out esterification reaction 2 hours under the condition of temperature 75 ℃, wherein the feeding weight ratio of alginic acid powder and propylene oxide is 1: 0.8; ...

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Abstract

The invention belongs to the technical field of marine organism chemical engineering and particularly relates to a production method of propylene glycol alginate. The production method of the propylene glycol alginate comprises the following steps: (1), brown algae is taken as a raw material, digesting treatment on the brown algae is performed, and then filtering, calcifying, dewatering and smashing treatments are performed; (2), pelletization treatment is performed on alginic acid obtained; (3), alginic acid particles obtained are washed by an organic solvent; (4), the alginic acid particles are freezed and smashed; (5), esterification reaction is performed; (6), centrifugation is performed; (8), an end product is obtained through drying, pulverizing and packaging. The production method provided by the invention can remarkably reduce the consumption of epoxypropare under the premise of not impacting product quality.

Description

technical field [0001] The invention belongs to the technical field of marine biochemical industry, and particularly relates to a production method of propylene glycol alginate. Background technique [0002] Propylene Glycol Alginate (PGA), white or light yellow powder, is processed from alginic acid extracted from natural seaweed as the basic raw material, and its aqueous solution becomes a viscous colloid. Propylene glycol alginate is a new type of food additive with excellent performance. Compared with alginic acid and its salts, it has many advantages: because its molecular structure has both lipophilic and hydrophilic groups, it can make oil and water uniform. Mixing and dispersing, so its emulsion stability is better; in addition, propylene glycol alginate itself is a kind of acidic product, the pH of its 1% solution is 3-4, so it has stronger stability to acid. Nowadays, propylene glycol alginate has been widely used in food, medicine, daily chemical and other fields...

Claims

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Application Information

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IPC IPC(8): C08B37/04
Inventor 许艳婷林成彬王斌滕怀华牟宗富
Owner SHANDONG JIEJING GROUP CORP
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