This work describes an innovative process for the extraction of lycopene from tomato using supercritical carbon dioxide in the presence of vegetable oil as co-solvent. The presence of the co-solvent improves the yields of the lycopene extract and has a beneficial role in the stability of the pigment. A complete description of the extraction process is also reported. The experiments carried out with and without co-solvent at pressures and temperatures ranging from 335 to 450 bar and 45 to 70 ◦C, respectively, bar have shown that the amount of the extractable lycopene depends on the experimental conditions. Also, the maximum amount of the extractable lycopene from dried tomato (6% of moisture, average particle size of about 1 mm), at 450 bar and 66 ◦C in the presence of co-solvent and utilizing a flow rate of about 20 kg CO2/h, was 60%. The extracts were analyzed by high-performance liquid chromatography and UV–vis spectra.

Innovative supercritical CO2 extraction of lycopene from tomato in the presence of vegetable oil as co-solvent.

VASAPOLLO, Giuseppe;LONGO, Luigia;
2004

Abstract

This work describes an innovative process for the extraction of lycopene from tomato using supercritical carbon dioxide in the presence of vegetable oil as co-solvent. The presence of the co-solvent improves the yields of the lycopene extract and has a beneficial role in the stability of the pigment. A complete description of the extraction process is also reported. The experiments carried out with and without co-solvent at pressures and temperatures ranging from 335 to 450 bar and 45 to 70 ◦C, respectively, bar have shown that the amount of the extractable lycopene depends on the experimental conditions. Also, the maximum amount of the extractable lycopene from dried tomato (6% of moisture, average particle size of about 1 mm), at 450 bar and 66 ◦C in the presence of co-solvent and utilizing a flow rate of about 20 kg CO2/h, was 60%. The extracts were analyzed by high-performance liquid chromatography and UV–vis spectra.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11587/112028
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