Improvement of extraction and stability of anthocyanins, the natural red pigment from roselle calyces using supercritical carbon dioxide extraction

• Main Authors: Zuhaili, Idham, Nicky Rahmana, Putra, Ahmad Hazim, Abdul Aziz, Ahmad Syahmi, Zaini, Noor Azwani, Mohd Rasidek, Norlisa, Mili, Mohd Azizi, Che Yunus
• Format: Article
• Language: English
• Published: Elsevier Ltd 2022
• Subjects: QD Chemistry; TP Chemical technology
• Online Access: http://ir.unimas.my/id/eprint/38834/1/anthocyanins1.pdf; http://ir.unimas.my/id/eprint/38834/; https://www.sciencedirect.com/science/article/abs/pii/S2212982021004066; https://doi.org/10.1016/j.jcou.2021.101839

In this work, anthocyanins, a natural red pigment, were isolated from roselle calyces using supercritical carbon dioxide (SC-CO2). Three process conditions, namely pressure, temperature, and co-solvent ratio (ethanol-water), were investigated using a three-factorial design from response surface me...