1 23 Phytochemistry Reviews Fundamentals and Perspectives of Natural Products Research ISSN 1568-7767 Volume 12 Number 4 Phytochem Rev (2013) 12:581-602 DOI 10.1007/s11101-013-9323-3 Aloe barbadensis: how a miraculous plant becomes reality Nuria Chinchilla, Ceferino Carrera, Alexandra G. Durán, Mariola Macías, Ascensión Torres & Francisco A. Macías