Benefits of Submicron Emulsion
por NiuShangshen
Submicron emulsions are beneficial for products across numerous industries, including food & beverage, consumer beauty, personal care & cosmetics, and pharmaceuticals. Using a homogenizer for emulsion to produce these types of goods — which might include sauces, seasonings, cosmetic creams, pharmaceutical suspensions, and more — is often the most effective way to create the smaller droplet sizes and higher molecular density that these commodities require. The emulsion process provides numerous advantages, such as:
- Improved stability - creating more reliable, predictable product quality
- Uniform texture - aids product quality and performance
- Taste benefitsfor food products, ensuring that flavorings are uniformly distributed
- Longer shelf lifeas a result of improved stability
- Cost benefitsin scenarios where a more stable emulsion requires fewer additional materials and processes
High-pressure homogenization as a process for emulsion formation is sometimes viewed as cost or energy prohibitive. However, in addition to the above benefits — which cannot be achieved through other methods with the same level of quality and consistency — emulsification technology is continually evolving to offer improved productivity and more favorable resource usage and cost.
Each emulsion product and application will have different ideal droplet sizes. In most cases, sizes between two and five microns will be suitable, though there are many instances where much smaller droplets are required in order to achieve the necessary material properties and quality levels. When considering a homogenizer, remember that:
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Reduced droplet sizes have desirable effects, including:
- Stability is improved while reducing the need for thickening agents
- Submicron droplets in creams or lotions enhance the penetration of active ingredients and improve the protection characteristics of sunscreens
- Multiple emulsions can be used for sustained release of additive ingredients over time.
The Application Challenge
Several processing methods are used to produce submicron emulsions, but they all suffer from the same limitations: restricted capacity, high energy consumption and frequent maintenance requirements, all of which add to the cost of processing.