Method for separating and purifying pyrroloquinoline quinone disodium salt based on fermentation liquid composite salting-out
A technology for pyrroloquinoline quinone disodium salt and pyrroloquinoline quinone, which is applied in the fields of biochemical industry and separation and purification, can solve the problems of obtaining pyrroloquinoline quinone disodium salt by separation, and does not involve high-purity separation and extraction of fermentation broth. The effect of shortening the process cycle, short production cycle and reducing waste water discharge
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0073] Example 1
[0074] Preparation of polyvinyl alcohol magnetic microspheres
[0075] Fe 3 O 4 Preparation of magnetic fluid: at 50℃, 0.5mol / L FeCl 2 Solution and 0.5mol / L FeCl 3 The solution was added to a three-necked flask in a volume ratio of 1:2, while stirring in the disperser (14000r / min), a molar ratio of 3mol / L NaOH solution was added dropwise, and the temperature was raised to 80°C and stirred for 40 minutes. After the reaction was completed Separate the precipitate with a magnetic field, repeatedly wash with distilled water until the supernatant is neutral, and dry to obtain black powdery Fe 3 O 4 Magnetic fluid
[0076] Preparation of polyvinyl alcohol magnetic microspheres: Fully swell the PVA with distilled water, stir at 90°C to prepare a 9% PVA aqueous solution, and add an appropriate amount of Fe 3 O 4 Pour the magnetic fluid into the PVA solution, stir and mix, disperse with a cell pulverizer for 20 minutes, then pour into the dispersion medium (oil: Tween: n-bu...
Example Embodiment
[0077] Example 2
[0078] Preparation of pyrroloquinoline quinone disodium salt
[0079] S1: Separate about 21L of pyrroloquinoline quinone fermentation broth through a ceramic ultrafiltration membrane for the first filtration to obtain a pyrroloquinoline quinone primary filtrate, with a filtration yield of 98.2%;
[0080] S2: Take the primary filtrate obtained in the previous step, adjust the concentration of pyrroloquinoline quinone to about 800-850mg / L, adjust the pH to 4.3 with sulfuric acid, stir for 1 hour and then filter. Before filtering, pre-coat a layer of mesopores on the filter membrane Silica (particle size: 600nm, thickness: 0.3mm), filtered to obtain the de-impurity filtrate, the chromatographic purity is 83.6%;
[0081] S3: Sulfuric acid was added dropwise to the impurity removal filtrate obtained in the upper step to make the pH to 2.4, and the polyvinyl alcohol magnetic microspheres prepared in Example 1 were added to 3.5wt%. After the adsorption reaction for 3 hours...
Example Embodiment
[0087] Example 3
[0088] Preparation of pyrroloquinoline quinone disodium salt
[0089] S1: The pyrroloquinoline quinone fermentation broth is filtered once through the ceramic membrane separation technology to obtain the pyrroloquinoline quinone primary filtrate with a filtration yield of 98%;
[0090] S2: Take the primary filtrate obtained in the previous step, adjust the pH to 4.3 with sulfuric acid, remove impurities, stir for 1h and then filter. Before filtering, pre-coat a layer of mesoporous silica (particle size 0.6-0.7um) on the filter membrane , Add mesoporous silica in batches during the filtration process, and add 3 times in total until the filtration is completed (the total amount is the same as in Example 1) to obtain the impurity removal filtrate with a chromatographic purity of 86.1%;
[0091] S3: Add sulfuric acid dropwise to the impurity removal filtrate obtained in the upper step to adjust the pH to 2.4, add 5 wt% of the polyvinyl alcohol magnetic microspheres prep...
PUM
Property | Measurement | Unit |
---|---|---|
Particle size | aaaaa | aaaaa |
Particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap