Córdova, Javier S., and Blanca L. Roque. “Extraction by Biocatalytic Action and Quantification of Lutein from Tomato of Tree (Cyphomandra Betacea)”. Ciencia E Investigación, vol. 17, no. 1, June 2014, pp. 21-26, https://doi.org/10.15381/ci.v17i1.11089.