Supercharge Your Innovation With Domain-Expert AI Agents!

Method for preparing sodium diacetate

A technology of sodium diacetate and preparation steps, which is applied in the field of preparation of sodium diacetate, can solve problems such as unstable product quality, difficult recovery of mother liquor, long reaction time, etc., achieve stable product quality, simple and easy operation, and reduce production cost Effect

Inactive Publication Date: 2016-08-24
CHANGZHOU C PE PHOTO ELECTRICITY SCI & TECHN
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem that the present invention mainly solves: in view of the present traditional method in the process of producing sodium diacetate, the process is complex, the reaction time is too long, and the mother liquor is difficult to recover, resulting in unstable product quality. After the culture medium, collect the mycelia suspension and mix it with sodium carbonate, add glacial acetic acid, prepare sodium diacetate through the catalytic reaction in the microorganism, filter the filtrate, and let stand and filter again, collect the filtrate and add anhydrous Stir with ethanol, remove ethanol by rotary evaporation and dry to obtain the preparation method of sodium diacetate

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

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] First in parts by weight, get 40 parts of PDA medium, 5 parts of glucose solution with a mass fraction of 15%, 16 parts of starch and 2 parts of urea, mix evenly, use phosphoric acid with a mass fraction of 10% to adjust the pH to 4.0, and Sterilize in a sterilizing furnace to obtain a medium, inoculate Aspergillus Usami into the medium according to the inoculum size of 12%; then move the above inoculated medium to a constant temperature incubator, set the temperature at 28°C, and cultivate After 6 days, the culture medium was taken out, and the surface of the culture medium was rinsed with water for 3 minutes, and the eluate was collected to obtain a mycelium suspension; then, according to the solid-to-liquid ratio of 1:2, sodium carbonate and the above-mentioned mycelia suspension were put into a glass In the reaction kettle, use nitrogen to exhaust the air in the glass reaction kettle, irradiate the glass reaction kettle with β rays for 50s, then stir at 120r / min for ...

example 2

[0023] First, in parts by weight, get 43 parts of PDA medium, 8 parts of glucose solution with a mass fraction of 15%, 20 parts of starch and 2.5 parts of urea, mix evenly, use phosphoric acid with a mass fraction of 10% to adjust the pH to 4.3, and Sterilize in a sterilizing furnace to obtain a culture medium, inoculate Aspergillus Usami into the culture medium according to the inoculum size of 14%; then move the above inoculated culture medium to a constant temperature incubator, set the temperature to 30°C, and cultivate After 7 days, the medium was taken out, and the surface of the medium was rinsed with water for 4 minutes, and the eluate was collected to obtain a suspension of mycelium; then, according to a solid-to-liquid ratio of 1:2, put sodium carbonate and the suspension of mycelia obtained above into a glass In the reactor, use nitrogen to exhaust the air in the glass reactor, irradiate the glass reactor with β-rays for 60s, then stir at 120r / min for 1.5h at room te...

example 3

[0026]First in parts by weight, get 45 parts of PDA medium, 10 parts of glucose solution with a mass fraction of 15%, 24 parts of starch and 3 parts of urea, mix evenly, use phosphoric acid with a mass fraction of 10% to adjust the pH to 4.5, and Sterilize in a sterilizing furnace to obtain a culture medium, inoculate Aspergillus Usami into the culture medium according to the inoculum size of 16%; then move the above-mentioned inoculated culture medium to a constant temperature incubator, set the temperature to 32°C, and cultivate After 9 days, the culture medium was taken out, and the surface of the culture medium was rinsed with water for 5 minutes, and the eluent was collected to obtain a suspension of mycelia; after that, sodium carbonate and the suspension of mycelia obtained above were put into a glass with a solid-to-liquid ratio of 1:2. In the reactor, use nitrogen to exhaust the air in the glass reactor, irradiate the glass reactor with β-rays for 70s, then stir at 120...

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 discloses a method for preparing sodium diacetate, and belongs to the technical field of methods for preparing sodium diacetate. The method includes inoculating aspergillus usamii into culture media, collecting hyphe suspension liquid and mixing the hyphe suspension liquid and sodium carbonate with each other to obtain mixtures; adding glacial acetic acid into the mixtures; carrying out microbial in-vivo catalytic reaction to prepare sodium diacetate and then filtering the sodium diacetate to obtain filter liquid; allowing the filter liquid to stand still and filtering the filter liquid; collecting filter substances, then adding absolute ethyl alcohol into the filter substances and stirring the filter substances and the absolute ethyl alcohol; removing ethyl alcohol by means of rotary evaporation and drying products to obtain the sodium diacetate. As proved by examples, the method has the advantages that the method is easy to implement and feasible in operation, raw materials are simple and are easily available, the filter liquid can be sufficiently utilized in operation procedures without being recycled, optional pollution can be prevented, the production cost can be reduced to a great extent, the sodium diacetate which is a product is stable in quality, the yield of the sodium diacetate can reach 90% at least, the purity of the sodium diacetate can reach 95% at least, and the method can be widely applied and popularized.

Description

technical field [0001] The invention discloses a preparation method of sodium diacetate, which belongs to the technical field of preparation methods of sodium diacetate. Background technique [0002] Sodium diacetate is a multifunctional edible chemical, mainly used as preservative, antifungal agent, chelating agent, flavoring agent, PH regulator, meat product preservative in food and feed industry, and it is also a compound antifungal agent. main ingreadient. It has the functions of high-efficiency anti-mold, fresh-keeping, and increasing nutritional value. It is not only suitable for safe storage of grain seeds, but also suitable for anti-mold and fresh-keeping of feed, increasing nutritional value, and improving palatability. It is especially suitable for fresh-keeping of corn and grains. [0003] At present, there are three main production methods of sodium diacetate in my country. [0004] (1) The liquid-phase reaction method of sodium acetate and acetic acid in ethan...

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): C12P7/54C12R1/66
CPCC12P7/54
Inventor 郭伟明张明宋奇
Owner CHANGZHOU C PE PHOTO ELECTRICITY SCI & TECHN
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com