Extraction of Calendula using supercritical CO₂


Extraction of Calendula using supercritical CO₂

Dall’Acqua, S.1; Portolan, A.2; Igl-Schmid, N.3; Schulmeyr, J.3
1University of Padova, Via Marzolo 5, 35100 Padova, Italy
2UNIFARCO S.p.A., Via Cal Longa 62, 32035 S.Giustina, Belluno, Italy
3NATECO2 GmbH & Co. KG, Auenstrasse 18-20, 85283 Wolnzach, Germany
The 13th European Meeting on Supercritical Fluids in The Hague, 9th – 12th Oct 2011

Calendula officinalis is a annual or perennial herbaceous plants in the daisy family Asteraceae, native to the Mediterranean region. The plant is 30-50 cm high and attracts attention by its yellow to orange florescence in June to October. Especially the flowers of the plant are important for cosmetical and pharmaceutical applications. The paper presents the benefits and performance extracting dried calendula flowers using supercritical CO2.

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