O2P™ vs. Other Drying Methods
Technology Comparison
As a unique, proprietary oil-to-powder conversion technology, O2P™ provides NPRI with a distinct intellectual property advantage and a marketable difference compared to other drying technologies.
Spray Drying
Spray drying is a well-established technology that involves spraying microscopic droplets of oil onto a granular carrier such as maltodextrin to create a powder. To achieve the necessary viscosity, the oil and vessel are typically heated to temperatures ranging from 130°C to over 220°C. For many popular omega-3 oils such as flaxseed and fish, as well as other omega oils including CLA, primrose, and borage, exposure to such heat can significantly reduce or destroy the active (therapeutic) components, rendering the powder less effective. Spray drying usually produces an oil load factor of 35-45%, meaning 35-45% of the powder is oil, with the remainder being the carrier.
Freeze Drying
Freeze-drying, a technology popularized in the 1960s space age, involves exposure to extreme cold to separate out excess water, followed by extreme atmospheric pressure to remove water crystals. Many oils undergo molecular changes under such pressure, affecting their isomeric or fatty acid profiles. Exposure to air, water, or ambient temperatures can significantly increase oxidation levels, impacting the quality and stability of freeze-dried powders over time. Both loading and cost/kg for freeze-drying are similar to spray drying.
Micro-Encapsulation
Micro-encapsulation is a newer technology that involves atomizing oil and exposing it to heated air while applying a protective enzyme, lipid, or protein shell. The potential effects of heat and the premature dissolution or delayed release of the coating can impact the effectiveness of the active ingredients. Micro-encapsulation is also more expensive, costing over 20% more than O2P™.
The O2P™ Advantage
O2P™ stands out by not altering the molecular structure, isomeric or fatty acid profile, or nutritional value of the base oil. The process introduces no heat or oxygen, using a proprietary method without the need for sprayers, blenders, or other equipment that generates heat and destabilizes the oil. Operating at room temperature in a nitrogen-rich environment, O2P™ preserves the original oil profile, limits oxidation, and maintains stability.
In the O2P™ process, oils or other liquids are embedded into the carrier particle itself, rather than merely being deposited on the surface. This increases oil load capacity and maintains low peroxide levels for extended shelf life.
Discover the Unmatched Quality and Versatility of O2P Oil Powders
Experience the superior quality and convenience of O2P oil powders. Contact us today to learn how our products can enhance your production processes and meet your specific needs.