RT Journal Article
T1 The parameters that affect the supercritical extraction OF 2,4,6- trichloroanisol from cork
A1 Viguera Sáenz, Miguel
A1 Prieto, C.
A1 Casas, E.
A1 Cabañas Poveda, Albertina
A1 Calvo Garrido, María Lourdes
AB The contamination of wine by 2,4,6-trichloroanisol (TCA) derived from the cork stopper is a huge problem for the wine industry. This work shows the results of TCA extraction using supercritical CO2. Cork granules (6% moisture) were placed forming a fixed bed within a high-pressure vessel. The CO2 was made to continuously flow over this. The TCA removal was compared at different operating conditions (pressure, temperature, flow rate or extraction time). TCA removal was not possible in dried cork. Density had a positive impact in TCA removal due to the solvent capacity increase. An increase in the supercritical fluid temperature over 60 °C impaired the TCA extraction. High residence times benefited the extraction. At high CO2 density of 585 kg m−3 , TCA elimination below the detection level was achieved in 8 min residence time. This required relatively low solvent to cork mass ratios (43 kg CO2 kg−1 ).
PB Elsevier
SN 0896-8446
YR 2018
FD 2018
LK https://hdl.handle.net/20.500.14352/19399
UL https://hdl.handle.net/20.500.14352/19399
LA eng
DS Docta Complutense
RD 7 abr 2025