Advances in supercritical carbon dioxide technologies

The high price of organic solvents, environmental factors and the requirements of, for instance, the medical and food industries for ultrapure products have increased the need to develop new processing techniques. Since the end of the 1970s, supercritical fluid extraction has been used to isolate natural products, but for a long time the applications concentrated on only few products. Now the development of processes and equipment that has lasted for over three decades is beginning to pay off and industries are getting more and more interested in supercritical techniques. This article summarizes some of the advances and the latest developments in the field of supercritical fluid technology focusing on using supercritical carbon dioxide in food, nutraceutical and pharmaceutical applications and takes a quick outlook for the future prospects.

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