Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing alginic acid and sodium alginate by steam explosion combining bio-enzyme

A technology of combining biology and sodium alginate, which is applied in the field of modernization of traditional Chinese medicine, can solve the problems of low molecular weight of alginic acid and sodium alginate, destroying effective substances in kelp, and reducing product quality, so as to improve product yield and product quality, and reduce dosage , The effect of reducing production energy consumption

Inactive Publication Date: 2016-03-09
宁夏乙征生物工程有限公司
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But on the one hand, compared with the traditional technology, the simple introduction of steam explosion technology can only break up the co-polymers of lignin, hemicellulose and cellulose inlaid with pectin in most cell walls of plants into lignin, pectin, hemicellulose Dispersions of cellulose and cellulose, these macromolecular polymers still exist, and still require high-concentration sodium carbonate solution for a long time to digest. In the process of degrading these macromolecular substances, alginic acid is bound to degrade, The higher the concentration, the longer the digestion time, the more alginic acid is degraded, the lower the molecular weight of alginic acid and sodium alginate obtained, the viscosity is greatly reduced, and the product quality is worse; on the other hand, during the steam explosion process, due to the steam explosion The medium is water vapor over 100°C. Long-term high temperature will inevitably destroy the effective substances in the kelp and reduce the quality of the product.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing alginic acid and sodium alginate by steam explosion combining bio-enzyme
  • Method for preparing alginic acid and sodium alginate by steam explosion combining bio-enzyme

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] Step (5) Preparation of alginic acid: filter the material obtained after the treatment in step (4), add acid to the filtrate to adjust the pH to 1-4, filter, and precipitate (alginic acid) for later use.

[0038] Step (6) Preparation of sodium alginate: Dissolve the alginic acid obtained in (5) with an appropriate amount of sodium carbonate aqueous solution, add ethanol for precipitation, filter, and dry the precipitate to obtain sodium alginate.

[0039] The invention uses air steam explosion combined with compound biological enzymes, which essentially solves the fatal problems of low yield of alginic acid and sodium alginate and low viscosity of sodium alginate produced by the traditional process, and can reduce the amount of chemicals used and energy consumption. consumption.

[0040] Experimental data: Using dried kelp as raw material, using sodium alginate yield and viscosity as evaluation indicators, different production processes were evaluated.

[0041]

[0...

Embodiment 1

[0045] A method for preparing alginic acid and sodium alginate by steam explosion combined with biological enzymes, comprising the following steps:

[0046] (1) Pre-treatment of raw materials: soak dried kelp in water for 1 hour to soften, wash to remove impurities such as sediment, cut into 5-15cm sections, and drench off the surface moisture;

[0047] (2) Air steam explosion treatment: place the kelp through the raw material pretreatment in the steam explosion tank, use air as the steam explosion medium, make the pressure in the blasting device 1.0MPa, and the blasting time is 10min;

[0048] (3) Composite biological enzyme treatment: suspend the kelp after air explosion with 10 times the amount of water, add the composite biological enzyme preparation according to 1500g / ton of raw materials, and hydrolyze it for 3 hours at pH 5.5 and 50°C. The preparation is composed of the following components in mass percentage: 20% cellulase, 20% xylanase, 15% pectinase, 15% laccase, 15%...

Embodiment 2

[0053] A method for preparing alginic acid and sodium alginate by steam explosion combined with biological enzymes, comprising the following steps:

[0054] (1) Raw material pre-treatment: wash the fresh kelp with water to remove impurities such as sediment, cut it into 5-15cm sections, and drench off the surface moisture;

[0055] (2) Air steam explosion treatment: place the kelp through the raw material pretreatment in the steam explosion tank, use air as the steam explosion medium, make the pressure in the blasting device 1.5MPa, and the blasting time is 15min;

[0056] (3) Composite biological enzyme treatment: suspend the kelp after air explosion with 10 times the amount of water, add a composite biological enzyme preparation according to 500g / ton of raw materials, and hydrolyze it for 2h at pH 6 and 60°C. The composite biological enzyme preparation consists of Each component is composed of the following mass percentages: 20% cellulase, 20% xylanase, 10% pectinase, 10% la...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for preparing alginic acid and sodium alginate by steam explosion combining bio-enzyme. The method is a method for preparing the alginic cid and the sodium alginate by taking kelp, gulfweed and the like as raw materials. Compared with a conventional method, the method has the advantages that the productive rate is high, energy consumption is saved, the amount of a chemical agent is less and the like, and is suitable for industrialized mass production.

Description

technical field [0001] The invention belongs to the field of traditional Chinese medicine modernization, and relates to a method for preparing alginic acid and sodium alginate by combining steam explosion with biological enzymes. Background technique [0002] Alginic acid, its molecular formula is (C 6 h 7 o 6 ) n , with a relative molecular weight of about 32,000 to 200,000, is a polysaccharide carbohydrate extracted from brown algae kelp or sargassum, and is composed of 1,4-poly-β-D-mannuronic acid and α-L-gulo A linear polymer composed of uronic acid, and its derivatives include sodium alginate, calcium alginate, zinc alginate, iron alginate, potassium alginate, magnesium alginate, ammonium alginate, etc. Among them, sodium alginate is widely used in chemical, biological, pharmaceutical, food and other fields because of its good biodegradability and biocompatibility. [0003] At present, the preparation methods of sodium alginate in the world can be divided into four...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/04
CPCC08B37/0084C08B37/0003
Inventor 陈龙王双平
Owner 宁夏乙征生物工程有限公司