Method for preparing flax lignans
A technology of flax lignan and flaxseed meal, which is applied in the preparation of sugar derivatives, lignin derivatives, chemical instruments and methods, etc., can solve the problems of product residues, inconvenient industrial production, and limited product wide application, etc. To achieve the effect of shortening the extraction time and saving the consumption of ethanol
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0018] Add 400Kg of degreased linseed meal into a 1500L Soxhlet extraction tank, add 70% ethanol solution that is 3 times the amount of raw materials, soak for 3 hours, then pass through steam and heat to 80-100°C, reflux for 10 hours, extract and concentrate at the same time Extract, after the extraction is completed, reclaim ethanol, then concentrate the extract to Baume degree 8-12, cool to room temperature, adjust the pH value of the concentrate to 3 with hydrochloric acid, transfer the acid concentrate to a high-speed centrifuge, and use 3000rpm Centrifuge at a speed of 5 minutes, pour out the supernatant, add water with a pH value of 3 to the centrifuged sediment, beat, and centrifuge at a speed of 3000rpm for 5 min, repeat this operation twice; take out the centrifuged sediment, add 2 times the amount of Water, add 30% sodium hydroxide solution dropwise under stirring at room temperature, adjust the pH of the reaction solution to 11, hydrolyze at room temperature, check ...
Embodiment 2
[0036]Embodiment 2: Using commercially available linseed as raw material, add 400Kg of linseed meal after pressing and deoiling into a 1000L Soxhlet extraction tank, add 2 times the amount of raw material in 50% ethanol solution to soak linseed meal for 1h, and then Heat to 80-100°C with steam, reflux and extract for 14 hours, and concentrate the extract at the same time. After the extraction is complete, recover ethanol, cool to room temperature, adjust the pH of the concentrated solution to 2 with sulfuric acid, transfer the turbid solution to a high-speed centrifuge, Centrifuge at a high speed for 5 minutes, pour out the clear night, add water with a pH value of 2 to the centrifuged precipitate, beat the slurry, and centrifuge for 5 minutes, repeat this operation twice, take out the solid precipitate, add about 2 times the amount of water, and stir at room temperature Add 10% potassium hydroxide concentrated solution dropwise, control the pH of the reaction solution to 10, u...
Embodiment 3
[0037] Example 3: Using commercially available linseed as raw material, add 400Kg of linseed meal after pressing and deoiling into a 3000L Soxhlet extraction tank, add 6 times the amount of raw material and 95% ethanol solution to sub-soak the linseed meal for 5h, Then feed steam to heat to 80-100°C, reflux for extraction for 6 hours, and concentrate the extract while extracting. After the extraction is complete, recover ethanol, then concentrate the extract to about 400L, cool to room temperature, and adjust the pH of the concentrate to 4 with sulfuric acid. Transfer the turbid liquid to a high-speed centrifuge, centrifuge at a speed of 8000rpm for 5min, pour out the clear night, add water with a pH value of 4 to the centrifuged precipitate, beat, and centrifuge for 5min, repeat this operation twice, take out the solid precipitate, Add about 4 times the amount of water, add 50% concentrated sodium hydroxide solution dropwise under stirring at room temperature, control the pH o...
PUM
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com