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Natural Native Drying

Gentle Drying of Sensitive Products Without Additives

| Author / Editor: Martin Michalski / Dominik Stephan

Gentle native drying: Product tests at SPX's testcenter found a combination of belt dryers and vacuum technologies to be the method of choice for drying valueable liquid products like plant extracts or proteins.
Gentle native drying: Product tests at SPX's testcenter found a combination of belt dryers and vacuum technologies to be the method of choice for drying valueable liquid products like plant extracts or proteins. (Picture: SPX)

Fruit concentrates and extracts are in high demand for food, pharma and lifestyle industries. Given the need for high quality, pure products without any additives, drying becomes a special challenge. Discover, how dryer specialists at SPX tackled the problem of drying sensitive products without a carrier substance ...

There is an increasing demand for natural native dried products in the food and pharmaceutical industries, whereby the original characteristics (such as aroma and flavour) are preserved without the use of additives. Whether processing a plant extract, fruit concentrate or protein, it is important for the supplier of the dryer plant to understand the products and specific processes to help customers achieve their goals and to ensure consistent and economical production.

Native Drying of Liquid Products

To meet this demand, SPX has developed a new process for native drying of high-end liquid products without the use of additives such as maltodextrin or gum, which are necessary in most other dryers (including spray dryers).

The process uses a special dosing system combined with a high vacuum to produce high quality dried products with rich aromas and flavours. There is no oxidation and resulting amorphous structures make the end products easy to dissolve.

Vacuum Tunnel is Haert of Drying Plant

The heart of this drying plant is a vacuum tunnel with belts. Belt drying is among the most economical and gentle drying methods, combining high product quality with good operational efficiency. The unit continuously doses liquid or solid products onto the belts and provides a continuous discharge of dried products in clean room conditions (GMP).

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