Fish lipids typically exhibit a range of colors when initially extracted and isolated as crude oil, such as yellow, brown, green, or even black, due to the presence of different types and quantities of pigments and particles.
To ensure appearance and quality, oil refineries generally need to refine the crude oil to remove the color and reduce these colorants.
The decolorization process is a critical step in the purification of fish oil esters, it helps to remove not only pigmented substances, but also remove trace metal elements in oil esters, phospholipids, saponification, odorous substances, residual pesticides, etc., which can contribute to off-flavors, rancidity, and reduced shelf life.
It is the last process before the oil is subjected to deodorization under high-temperature treatment for further removal of impurities.

By removing these impurities, the fish oil esters are given a clear and visually appealing appearance, enhancing their marketability and improving oxidative stability.
As a supplier of fish oil refining and purification equipment, we understand the requirements of omega-3 fish oil purification and the importance of decolorization in improving the quality and appeal of fish oil esters.
In this article, we aim to provide basic process information to help readers effectively select the decolorization process and equipment.

Understanding the crucial factors influencing lactic acid recovery, selecting appropriate separation and purification methods, and optimizing process parameters will contribute to higher yields, improved product quality, and increased efficiency. By unlocking the full potential of lactic acid separation and purification, businesses can benefit from enhanced productivity and meet the stringent demands of various industries.

Implementing these effective techniques and utilizing suitable equipment will not only streamline lactic acid production but also open doors to new opportunities and applications. Embrace the knowledge shared in this guide, and witness the transformative impact it can have on your lactic acid separation processes.

Different winterized fish oils can be produced by sequential treatment of incubation and filtering at increasingly decreased temperatures and controlling the temperature required for different freeze filtration. The lower the freezing point, the higher the unsaturated fatty acid content and the purer the quality of the winterized fish oil compared to normal refined fish oils.
The fish oil winterization and refining line can be optimized by optimizing the production process parameters on the equipment and control system, improving the professional skills and proficiency of the production operators, reducing the production cycle time per unit of product and promoting higher production efficiency, thus achieving an increase in the target capacity scale.