Supercritical Fluids Processing

Supercritical Fluids Processing

Description

The Supercritical Fluids Processing team at Callaghan Innovation has over 25 years’ experience developing industry relevant technologies tailored to companies’ process and product needs. Our leading capability includes extraction, fractionation, particle formation and chromatographic separations under supercritical conditions using carbon dioxide and other compressed gases such as DME (dimethyl ether). We have a wide range of equipment, including a portable, pilot-scale supercritical extraction plant (‘SuperEx’) and a portable pilot-scale supercritical fluid chromatography unit; both pilot plants can be used at Callaghan Innovation or relocated to a company’s own facilities for manufacture of concept products and technology transfer.

Expertise

The Supercritical Fluids Processing team at Callaghan Innovation has over 25 years’ experience developing industry relevant technologies tailored to companies’ process and product needs. Our leading capability includes extraction, fractionation, particle formation and chromatographic separations under supercritical conditions using carbon dioxide and other compressed gases such as DME (dimethyl ether). We have a wide range of equipment, including a portable, pilot–scale supercritical extraction plant (‘SuperEx’) and a portable pilot–scale supercritical fluid chromatography unit; both pilot plants can be used at Callaghan Innovation or relocated to a company’s own facilities for manufacture of concept products and technology transfer.

Objective

To create wealth for New Zealand companies by developing tailored process solutions for improved efficiency and/or manufacture of high-value products.

Research Focus

Development of processes for manufacture of extracts and ingredients for the food and beverage (including functional foods), cosmetic, nutraceutical and/or pharmaceutical industries.

Unique Capability Proposition

Supercritical fluid processing technologies can have a number of advantages over more traditional methods that use large volumes of organic liquid solvents, including:

  • Low process temperatures, which helps preserve the properties of natural products;
  • The supercritical solvent is very easy to recover and recycle;
  • Lack of solvent residues in extracts and residual feed materials, which is of particular importance when products are for human consumption;
  • Selective extraction and fractionation of different volatility oils;
  • Extraction of a broad range of compounds when using DME or other liquefied gas solvents, with the potential for greater yield compared to liquid organic solvents;
  • Use of liquefied dimethyl ether as the process solvent, which extracts lipids from aqueous feed streams without the need for pre-drying.