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Method for co-production of galactonic acid and 5-hydroxymethyl-2-furoic acid by taking gelidium amansii lamouroux as raw material

A technology of galactobionic acid and furanic acid, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., to achieve the effect of mild reaction conditions, strong tolerance, and simple reaction system

Active Publication Date: 2019-10-15
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few research reports on the production of these two types of chemicals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Treatment of agaricus: Wash the commercially available agaricus with tap water to remove impurities and salt, cut it into pieces with scissors, and lay it flat to dry. Use a miniature plant pulverizer to crush the sun-dried agaricus, and use a sieve plate to sieve the agaricus below 40 meshes as raw materials for acidolysis. Weigh 2 g of pedicel with an absolute dry weight and mix it with dilute hydrochloric acid with a mass concentration of 0.2%. The mass volume ratio of pedicel to dilute hydrochloric acid is 1:15g / mL, and keep warm at 140°C for 20min. Filtrate to obtain the acid hydrolyzate of peony cauliflower, the contents of each substance in the acid hydrolyze are as follows: galactose, 30g / L; 5-hydroxymethylfurfural, 5.5g / L; glucose, 3.3g / L; formic acid, 0.8g / L; Levulinic acid, 1.9g / L. Sodium hydroxide was added to the acidolysis solution to neutralize to pH 6.0 to obtain the substrate.

[0038] (2) Biocatalyst preparation: Take a ring of Pseudomonas from t...

Embodiment 2

[0042] (1) Treatment of agaricus: Wash the commercially available agaricus with tap water to remove impurities and salt, cut it into pieces with scissors, and lay it flat to dry. Use a miniature plant pulverizer to crush the sun-dried agaricus, and use a sieve plate to sieve the agaricus below 30 meshes as raw materials for acidolysis. Weigh 2 g of pedicel with dry weight and mix it with dilute sulfuric acid solution with a mass concentration of 0.3%. The mass volume ratio of pedicel to dilute hydrochloric acid is 1:10g / mL, and keep warm at 130°C for 30min. Filtrate to obtain the acid hydrolyzate of peony cauliflower, the contents of each substance in the acid hydrolyze are as follows: galactose, 42g / L; 5-hydroxymethylfurfural, 7.8g / L; glucose, 4.3g / L; formic acid, 1.2g / L; Levulinic acid, 2.8g / L. Sodium hydroxide was added to the acidolysis solution to neutralize to pH 6.0 to obtain the substrate.

[0043] (2) Biocatalyst preparation: Take a ring of Pseudomonas from the agar...

Embodiment 3

[0047] (1) Treatment of agaricus: Wash the commercially available agaricus with tap water to remove impurities and salt, cut it into pieces with scissors, and lay it flat to dry. Use a miniature plant pulverizer to crush the sun-dried agaricus, and use a sieve plate to sieve the agaricus below 20 meshes as raw materials for acidolysis. Weigh 2 g of pedicel with an absolute dry weight and mix it with dilute hydrochloric acid solution with a mass concentration of 0.4%. The mass volume ratio of pedicel to dilute hydrochloric acid is 1:5g / mL, and keep warm at 120°C for 40min. Filtrate to obtain the acid hydrolyzate of agaricus, the contents of each substance in the acid hydrolyze are as follows: galactose, 75g / L; 5-hydroxymethylfurfural, 14g / L; glucose, 8.3g / L; formic acid, 2.5g / L; acetyl Propionic acid, 5.4g / L. Sodium hydroxide was added to the acidolysis solution to neutralize to pH 6.0 to obtain the substrate.

[0048] (2) Biocatalyst preparation: Take a ring of Pseudomonas f...

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Abstract

The invention discloses a method for co-production of galactonic acid and 5-hydroxymethyl furoic acid by taking gelidium amansii lamouroux as a raw material. The gelidium amansii lamouroux is subjected to dilute acid pretreatment to obtain an acidolysis solution rich in galactose and 5-hydroxymethylfurfural, and by taking the acidolysis solution neutralized by alkali as a substrate and through biotransformation of pseudomonas, the galactonic acid and the 5-hydroxymethyl furoic acid can be prepared synchronously. The production process is simple, the raw material cost is low, the additional values of the produced galactonic acid and the produced 5-hydroxymethyl furoic acid are high, and high-valued development and utilization of the gelidium amansii lamouroux are realized.

Description

technical field [0001] The invention belongs to the field of biochemical industry, and in particular relates to a method for co-producing galactobionic acid and 5-hydroxymethyl-2-furancarboxylic acid with agaricus as raw materials. Background technique [0002] my country's sea area is vast, and compared with terrestrial biomass, marine biomass is growing rapidly. Currently, the global annual production of seaweed is about 14 million tons, which is expected to increase to more than 22 million tons by 2020. Seaweed has become a potential resource for biofuel and chemical production in recent years because of its high carbohydrate content, low lignin content, easy handling, rapid growth, and abundant resource. Macroalgae are mainly classified into red algae, green algae and brown algae. Among them, there are many kinds of red algae, and the carbohydrate content is as high as 70%. Gnats belong to the group of red algae and consist mainly of polysaccharide complexes of agar a...

Claims

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Application Information

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IPC IPC(8): C12P7/58C12P17/04C12R1/40C12R1/38
CPCC12P7/58C12P17/04
Inventor 郑兆娟刘鹏欧阳嘉谢佳笑谭黄虹
Owner NANJING FORESTRY UNIV
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