Optical and structural properties of curcuminoids extracted from Curcuma longa L. for hybrid white light diodeM. Al Shafouri, Naser M. Ahmed, Z. Hassan, Munirah Abdullah Almessiere and Maadh JumaahEur. Phys. J. Appl. Phys., 84 1 (2018) 10501DOI: https://doi.org/10.1051/epjap/2018180185