1. Synthesis of carminic acid, the colourant principle of cochineal;Allevi;Journal of the Chemical Society, Perkins Trans,1998
2. Betalains: properties, sources, applications, and stability – a review;Azeredo;International Journal of Food Science and Technology,2008
3. Cabrera, R. B. (2005). Downstream processing of natural products: Carminic acid. Doctoral Thesis. International University Bremen, School of Engineering and Science.
4. Surface-enhanced Raman scattering study of the anthraquinone red pigment carminic acid;Cañamares;Vibrational Spectroscopy,2006
5. Centeno, M. (2003). Extracción, estabilización y evaluaciones analíticas del carmín. Ph. Thesis. Nacional Technic Institute, Applied Sciences Research Institute, México.