Preparation of plant source glucosamine hydrochloride

A technology of glucosamine hydrochloride and plant source, which is applied in the preparation of amino sugars and sugar derivatives, chemical instruments and methods, etc., can solve the problems of mildew and corruption, water pollution, environmental pollution, etc., and achieves a simple and easy production process. Product quality is guaranteed and the effect of reducing production costs

Inactive Publication Date: 2009-08-12
石勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the demand for glucosamine hydrochloride is increasing day by day. The traditional method of producing glucosamine hydrochloride generally uses chitin extracted from the shells of arthropods such as shrimps, crabs and insects as raw material, and undergoes acid hydrolysis and filtration. , Concentration, purification, re-concentration, cooling, filtration, drying and other steps, this production method has the following disadvantages: 1. Because the supply of raw materials is affected by regions and seasons, and the calcium content of shrimp and crab shells is high. Difficulties in extraction; coupled with overfishing in recent years, the number of shrimp and crabs has decreased sharply, resulting in a more scarce resource of chitin; 2. The problem of environmental pollution, especially water pollution, has become increasingly serious. Existing

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation method of plant source glucosamine hydrochloride of the present invention adopts the following steps:

[0020] (1) Acid hydrolysis: In a closed acid-resistant container with a stirring device, first add 300 kg of mycelium produced in the process of producing citric acid by fermentation, then add 600 kg of hydrochloric acid with a mass concentration of 25%, and start stirring , the temperature rose to 65°C, and the reaction was held for 10 hours;

[0021] (2) Cooling and pressure filtration: cool the feed liquid after the above reaction to below 10°C, precipitate crystals from the feed liquid, filter to obtain a crude product, transfer it to another acid-resistant container, and add 1000 kg of Deionized water, heated under agitation to redissolve the crude product, and then press filter;

[0022] (3) Decolorization: transfer the filtrate after the above-mentioned pressure filtration into an acid-resistant container with stirring, add barium hydroxide acc...

Embodiment 2

[0027] The preparation method of plant source glucosamine hydrochloride of the present invention mainly adopts the following steps:

[0028] (1) Acid hydrolysis: In an airtight acid-resistant container with a stirring device, first add 600 kg of mycelia produced during the production of citric acid by fermentation, then add 800 kg of hydrochloric acid with a mass concentration of 20%, and start stirring , the temperature was raised to 50°C, and the reaction was kept for 15 hours;

[0029] (2) Cooling and pressure filtration: cool the feed liquid after the above reaction to below 10°C, precipitate crystals from the feed liquid, filter to obtain a crude product, transfer it to another acid-resistant container, and add 1200 kg of Deionized water, heated under agitation to redissolve the crude product, and then press filter;

[0030] (3) Decolorization: transfer the filtrate after the above-mentioned pressure filtration into an acid-resistant container with stirring, add barium c...

Embodiment 3

[0035] The preparation method of plant source glucosamine hydrochloride of the present invention mainly adopts the following steps:

[0036] (1) Acid hydrolysis: In a closed acid-resistant container with a stirring device, first add 800 kg of mycelium produced in the process of producing citric acid by fermentation, then add 1200 kg of hydrochloric acid with a mass concentration of 30%, and start stirring , the temperature rose to 80°C, and the reaction was held for 9 hours;

[0037] (2) Cooling and pressure filtration: cool the feed liquid after the above reaction to below 10°C, precipitate crystals from the feed liquid, filter to obtain a crude product, transfer it to another acid-resistant container, and add 1500 kg of Deionized water, heated under agitation to redissolve the crude product, and then press filter;

[0038] (3) Decolorization: transfer the filtrate after the above-mentioned pressure filtration into an acid-resistant container with stirring, add barium chlori...

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PUM

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Abstract

The invention relates to a method for preparing a plant-source D-glucosamine hydrochloride. The plant-source D-glucosamine hydrochloride is mainly prepared by taking waste residues generated in the process of using the plant fermentation method to produce citric acid as raw material, and adopting the steps of acidolysis, cooling, filter pressing, decoloring, distillation and condensation, crystallization, washing, drying, and the like. Compared with prior art, the invention has the advantages of rich raw material resource, no heavy metal or antibiotic pollution, cheapness and easy obtaining. While effectively reducing the production cost, the invention finds a proper approach for treating the environment pollution so as to change waste into a treasure and also save the cost for treating the environment pollution. The invention also has simple and easy production process, good product quality, good economical and social benefit and wide market prospect.

Description

technical field [0001] The invention relates to a method for preparing plant-derived glucosamine hydrochloride, in particular to a method for preparing glucosamine hydrochloride from waste residue. Background technique [0002] Glucosamine hydrochloride, also known as glucosamine hydrochloride, is a white crystalline powder that is widely used in medicine, food and other fields. It can be used as an anti-bacterial infection and immune adjuvant, and can be used as a nutritional supplement for diabetic patients. The activator of the human body's anti-influenza virus has the effects of treating rheumatoid arthritis, enhancing human body functions and anti-aging. In addition, it can also be used in cosmetics, feed additives and as food preservatives. At present, the demand for glucosamine hydrochloride is increasing day by day. The traditional method of producing glucosamine hydrochloride generally uses chitin extracted from the shells of arthropods such as shrimps, crabs and i...

Claims

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Application Information

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IPC IPC(8): C07H5/06C07H1/00B09B3/00
Inventor 石勇闫福根李万和
Owner 石勇
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