A method for enriching fish oil epa and dha by low-temperature crystallization
A low-temperature crystallization, fish oil technology, applied in the direction of fat oil/fat refining, separation/purification of carboxylic acid compounds, organic chemistry, etc., can solve the problems of difficult to find relevant condition parameters, cumbersome separation and purification process, high equipment requirements, and easy operation. , good separation effect, large single processing effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0035] The method for enriching fish oil EPA and DHA through low-temperature crystallization of the present invention comprises the following steps:
[0036] Ethyl-esterified fish oil was heated at 30°C for 30 minutes, and the mass percent content of EPA and DHA in the ethyl-esterified fish oil was 50%;
[0037] Add methanol and diatomaceous earth to fish oil, the mass ratio of fish oil, methanol and diatomite is 100:200:0.5, and mix to form a mixture;
[0038] Place the mixture in a low-temperature device, and while stirring ultrasonically, first cool it down to 5°C at a rate of 1.0°C / min, heat it for crystallization for 3 hours, then cool it down to -30°C at a rate of 1.3°C / min, hold it for 2.5 hours, and heat it for crystallization. 300w, stirring rate n=15r / min;
[0039] After low-temperature crystallization, separate the crystals and uncrystallized liquid by vacuum filtration, centrifuge to remove the crystal aid in the uncrystallized liquid, and molecularly distill to r...
Embodiment 2
[0041] The method for enriching fish oil EPA and DHA through low-temperature crystallization of the present invention comprises the following steps:
[0042] Ethyl-esterified fish oil was heated at 35°C for 25 minutes, and the mass percent content of EPA and DHA in the ethyl-esterified fish oil was 55%;
[0043] Add absolute ethanol and clay to fish oil, the mass ratio of fish oil, absolute alcohol and clay is 100:400:1, and mix to form a mixture;
[0044] Place the mixture in a low-temperature device, and while stirring ultrasonically, first cool it down to 0°C at a rate of 1.3°C / min, keep it crystallized for 3.5 hours, then cool it down to -35°C at a rate of 1.5°C / min, hold it for 3 hours, and heat it to crystallize. 350w, stirring rate n=20r / min;
[0045] After low-temperature crystallization, separate the crystals and uncrystallized liquid by vacuum filtration, centrifuge to remove the crystal aid in the uncrystallized liquid, and molecularly distill to remove the organic...
Embodiment 3
[0047] The method for enriching fish oil EPA and DHA through low-temperature crystallization of the present invention comprises the following steps:
[0048] Ethyl-esterified fish oil was heated at 40°C for 20 minutes, and the mass percent content of EPA and DHA in the ethyl-esterified fish oil was 60%;
[0049] Add acetone and diatomaceous earth to fish oil, the mass ratio of fish oil, acetone and diatomite is 100:600:1.5, and mix to form a mixture;
[0050] Place the mixture in a low-temperature device, and while stirring ultrasonically, first cool it down to -3°C at a rate of 1.5°C / min, heat it for crystallization for 4 hours, then cool it down to -40°C at a rate of 1.8°C / min, hold it for 3.5 hours, and ultrasonically Power 400w, stirring speed n=25r / min;
[0051] After low-temperature crystallization, separate the crystals and uncrystallized liquid by vacuum filtration, centrifuge to remove the crystal aid in the uncrystallized liquid, and molecularly distill to remove th...
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