Catálogo de Investigaciones 2017-2018

CATÁLOGO DE INVESTIGACIONES | AÑO ACADÉMICO 2017-2018 131 InVitro Evaluation of the Inhibitory Activity of Essential Oils on Penicillium digitatum. SF J Ferm Micro Technol 1. 1-5. We evaluated the in vitro inhibitory activity of four essential oils (cinnamon, oregano, tea tree, and lemongrass) and a mixture of commercial origin (Healthy nails® mix) to determine its potential for the control of Penicillium digitatum (Pers.) Sacc., the fungus that causes green rot in citrus, by testing under laboratory conditions by two methods, one using the oils individually and a second where blends of these oils were made and compared with a mixture previously prepared by the manufacturer. The results show that only cinnamon and oregano oils showed inhibitory activity on P. digitatum (83-90% inhibition), while lemongrass and tea tree oils showed no activity since they allowed the growth of the pathogen in the whole of the test plate. Most of the mixtures were able to inhibit the growth of P. digitatum , except for the mixture of tea tree and lemongrass and the commercial mixture, which did not show any effect allowing the growth of the fungus in the whole plate. These results show that P. digitatum is susceptible to the action of the essential oils of plants individually or in synergy. dra. fátima gandarilla dra. isela quintero-zapata universidad autónoma de nueva león, méxico dra. hna. nancy arroyo gonzález ciencias, pucpr dra. maría e. alemán huerta dra. lilia h. morales ramos david i. moreno de la cerda universidad autónoma de nueva león, méxico dr. erick d. luna santillana instituto politécnico nacional, méxico cinnamon essential oil in vitro oregano penicillium digitatum