Optimisation of supercritical CO2 extraction of red colour from roselle (Hibiscus Sabdariffa Linn.) calyces

• Main Authors: Idham, Z., Nasir, H. M., Yunus, M. A. C., Yian, L. N., Peng, W. L., Hassan, H., Setapar, S. H. M.
• Format: Article
• Published: Italian Association of Chemical Engineering - AIDIC 2017
• Subjects: TP Chemical technology
• Online Access: http://eprints.utm.my/id/eprint/75891/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019498041&doi=10.3303%2fCET1756146&partnerID=40&md5=ae6d80c8a0467a144bd0d7b8f96f3d3f

Roselle (Hibiscus sabdariffa Linn.) is a local tropical plant widely cultivated in Malaysia. Roselle produces red edible calyces which contain intense red pigments of anthocyanins. Supercritical fluid extraction with carbon dioxide (CO2) is a particularly suitable isolation method for natural materi...