Barrier technology - Migration of other components
4 important questions on Barrier technology - Migration of other components
Which components tend to migrate unwanted?
How can unwanted migration be minimised?
- Minimise the driving force, e.g. By not using a lipid-based barrier in a product that contains relatively high amount of fats or oil
- Minimise the diffusivity. This can be achieved by for example using a bilayer film, where a secondary, hydrophilic coating provides an additional barrier for lipophilic product components
Why should antioxidants be incorporated at the surface?
- It makes sense to create a reservoir of antioxidants at the surface, which releases the antioxidants slowly to the product.
- Ultraviolet quencher or chelating agents (e.g. EDTA) that reduce the risks of oxidation of components in the product
- Enzymes such as catalase may be incorporated that remove strongly oxidising components, such as peroxides.
Why should you add antimicrobial agents in the film?
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