Yan (2003) patented an encapsulation method that could be used
to enhance the stability of omega-3 lipids. In this method, amulti-core
approach was taken by first encapsulating the omega-3 lipids and
then applying a second shell over the agglomerated encapsulated
lipids. This approach provides a product that has multi-layers of
protection. Currently, Ocean Nutrition Canada uses this technology
under the Powder-loc trademark to produce stable omega-3 encapsulated
powders. The powder that results from this process can
deliver 500–800 mg oil per gram of dry powder.