High pressure preserves nature
N. Igl-Schmid, A. Wuzik
Innovations in Food Technology, May 2011
he separation of substances from natural materials to obtain standardized products plays a pivotal role in food technology. Traditionally organic solvents were used for extracting compounds from a mixture. It is hard to imagine that gases could also take over this challenge. However this process has been a reality on an industrial scale for several decades. To convert gasses into effective solvents a liquid like density has to be created by applying pressure. In the field of this high pressure technology supercritical CO2 emerged as the most suitable solvent. CO2 extraction is used particularly in the food and beverage sector due to its manifold advantages and areas of applications.
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