Products Description

Fish oil manufacturing process Advantages:
1.Low-temperature operation: The operating temperature is usually 50 to 100 degrees Celsius lower than that of conventional distillation, avoiding thermal decomposition, oxidation or polymerization reactions caused by high temperatures and preserving the natural active components.

2.High vacuum environment: Operating under extremely low vacuum conditions reduces oxidation and contamination, improving product purity.

3.Efficient separation: The separation efficiency of Fish oil manufacturing process molecular distillation is high, allowing for one-step high-purity separation, with processing time shortened by more than 50%.

4.Retention of volatile components: Low-temperature operation helps retain the volatile components in fish oil, enhancing product quality.

Process Flow

Raw material pretreatment

In fish oil manufacturing process,the crude fish oil is subjected to degumming with phosphoric acid (at 85°C, 0.1% phosphoric acid) → alkali refining (NaOH neutralizes free fatty acids) → activated carbon adsorption of pigments, and then filtered to obtain a light yellow oil.

Molecular distillation parameters

Evaporation temperature: 120 - 160℃, adjusted according to the type of glyceride (EPA/DHA esters need to be < 150℃).
Condensation temperature: 40 - 60℃.
Feed rate: 1 - 3 mL/min (lab grade).
Vacuum degree: 0.01 - 0.05 mbar.
Scraping speed: 200 - 400 rpm (scraper type).

Grade-based collection

The light components (main fraction of glycerol esters) are condensed in the main receiving bottle, with a purity of up to 90%-95% (detected by GC); the reconstituted components (pigments, polymers, etc.) remain at the bottom of the evaporator and are periodically discharged.

Equipment details

Application Case

Fish oil purification: Through molecular distillation technology, free fatty acids, heavy metals, cholesterol and other impurities can be removed from fish oil, while the effective components such as EPA and DHA can be retained.
High-purity fish oil production: The fish oil manufacturing processed by using molecular distillation technology has an Omega-3 purity that can be increased to 99%, significantly higher than that of common products on the market.