Freeze Drying Process
Cultech Ltd has a processing technology that converts nutritional oils and other lipid-soluble nutrients into emulsified, freeze-dried, free-flowing powder forms that are wholly and instantaneously water dispersible. These very stable powders can be used for many applications, from hard shell encapsulation, tabletting and powdered drink formulations to functional foods, infant formula and food fortification.
The process converts nutritional oils into a completely water-miscible emulsion in which the microscopically tiny oil droplets are micro encapsulated with oligosaccharides.
The emulsion, produced without the need for solvents, is then freeze-dried under a vacuum at a temperature ranging between -20°C to -30°C.
This enables the oil to be locked into the oligosaccharides matrix without any risk of heat or oxidative damage to the oil.
After the drying cycle has finished, the end product is an entirely water-dispersible, free-flowing powder suitable for various food and nutraceutical applications.
This patent-approved process has been applied to a significant number of different substances.
These range from :
- essential fatty acids such as fish oil
- evening primrose oil
- borage oil
- linseed (flaxseed) oil and olive oil
- vitamin E
- lutein and lycopene
- peppermint and spearmint
However, this is by no means an exhaustive list.