Background
Flavors and fragrances play an important role in the production of numerous products such as cosmetics, pharmaceuticals, food and beverages. They are used as scents for perfumes as well as for the flavoring of foods and beverages. Flavors and fragrances are often produced by extraction from natural sources or chemical synthesis. Besides that, they can also be produced biotechnologically. Irrespective of how flavors and fragrances are produced, a purification of the suspension obtained is necessary before further use.
The challenge
The production of flavors and fragrances requires carefully selected raw materials. Besides the fluctuations in raw material quality, different techniques can be used for its production. Therefore, the property of the product to be filtered varies greatly. In order to avoid product losses, application-optimized purification processes are needed. Due to the different solvents used to produce flavors and fragrances, appropriate production equipment must be available for both the development of new processes and for large-scale production.
The solutions
Depth filtration is an established and efficient technology for the purification of flavors and fragrances. FILTROX offers a wide range of
products that cover all needs and applications to ensure gentle handling and maximum yield. Depth filtration technology is easily
scalable due to its linearity. The filter material remains identical from lab scale to production scale and solutions are available for any
size of operation.
PURAFIX® line – Filter sheets specifically designed for high purity applications
PURAFIX® depth filter sheets are made from specially selected raw materials to ensure
lowest levels of ions and pyrogens. This product line is also available with a positive
zeta potential. The combination of mechanical retention and electrokinetic effects
results in the highly efficient removal of small particles and negatively charged molecules. Various filter sheet grades are available, from coarse to sterile filtration, to meet the requirements of all kinds of applications for the purification of flavors and fragrances.
ACTIVASORB® line – Decolorization and deodorization
ACTIVASORB® products are depth filter sheets made of purified cellulose and activated
carbon. They are used for applications in flavors and fragrances production such as
decolorization or deodorization. Treatment with immobilized activated carbon is much
more efficient compared to loose carbon powder due to the forced contact of the
impurities with the activated carbon. Therefore, a shorter contact time is required and
less carbon needs to be used. Furthermore, ACTIVASORB® products allow easy and
clean handling. This filter sheet line covers grades for the pharmaceutical and
food & beverage industry.
Alluvial filtration – Easy and well-known technology for high particle load liquids
Alluvial filtration can be applied in the production of flavors and fragrances. This well-established and efficient technology allows the removal of high particle loads in a gentle and easy way. Celpure® filter aid is a high-purity diatomaceous earth and therefore the ideal choice for critical applications such as the filtration of flavors and fragrances. Due to the highly porous surface of Celpure® filter aid, a significant increase in the filtration capacity is achieved. Four grades of Celpure® with different permeability characteristics are available. Therefore, the ideal grade can be chosen for the individual filtration application.
Linearly Scalable
Depth filtration technology is easily scalable due to its linearity. The filter material is identical from lab scale to production scale and offers solutions for any size of operation.
Easy handling and high efficiency
Immobilized activated carbon filter sheets are easy to handle and highly effective due to the forced contact of the impurities with the activated carbon. Furthermore, PURAFIX® depth filter sheets are highly efficient in the removal of small particles and negatively charged molecules.
Flexible optimization
Various grades of PURAFIX® and ACTIVASORB® filter sheets as well as four different types of diatomaceous earth are available. Selecting the appropriate filtration solution with the right filter sheet and/or diatomaceous earth grades guarantees best filtration results.
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