Quancheng, Z., Guihua, S., Jingrong, H., Ting, Z., & Quanhong, L. (2010). Optimization of xanthophylls extraction from Marigold extractum with supercritical CO2 by response surface methodology. International Journal of Agricultural and Biological Engineering, 3(2), 58–63. Retrieved from https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/137