Biotransformation of volatile compounds of the leaves of Schinus terebinthifolius by caterpillar Automeris Hubner / Biotransformação de compostos voláteis das folhas de Schinus terebinthifolius por lagarta Automeris Hubner

• Autor(a) principal: Lopes, Pedro Henrique Ribeiro
• Data de Publicação: 2020
• Outros Autores: Vale, Jean Parcelli Costa do, Rodrigues, Tigressa Helena Soares, Bandeira, Paulo Nogueira, Santos, Hélcio Silva dos, Menezes, Jane Eire Silva Alencar de
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Veras
• Texto Completo: https://ojs.brazilianjournals.com.br/ojs/index.php/BRJD/article/view/14686
• topic: Schinus terebinthifolius; Biotransformation; Automeris sp

Aromatic plants are rich in essential oils composed mainly of terpenoids, which have great pharmacological potential. Generally, S. terebinthifolius trees are preyed upon by a species of caterpillar known as Automeris Hubner. The volatile compounds present in the hexane extract of their feces were identified and quantified. Twenty compounds (98.83%), 7 monoterpenes (83.02%) and 13 sesquiterpenes (15.81%) were identified. The main constituents of essential oil in feces are the monoterpenes Perillal (34.51%), D-Limonene (23.31%) and trans-Shisool (20.96%). The comparison of the volatile composition of the leaves and feces revealed that some constituents present in the leaves were identified in the feces in lower or higher concentrations than in the feces, such as the ?-3-Carene monoterpenes, whose percentage values were reduced from 27.80 % (leaves) to 0.41% (feces) and D-limonene whose concentration increased significantly in leaves (2.23%) compared to feces (23.31%). Analysis of the biosynthetic pathway of most terpenoid hydrocarbons showed that constituents such as ?-Pinene, D-Limonene and Germacrene D present in the essential oil of the leaves were biotransformed by the caterpillar Automeris Hubner in the monoterpenes: Myrtenol, Perillal and trans-Shisool and in the sesquiterpenes: Aromadendrene, ?-Selinene, Valencene, ?-Cadinene, ?-Cadinene, ?-Cadinene and ?-Eudesmol.