Perfil volátil do óleo essencial da casca de frutos de spondias e microencapsulação do óleo essencial de laranja

Abstract

This study has as its objective to obtain and characterize essential oil from powdered cajá-umbu peel (Spondias spp) and umbu (Spondias tuberose L.) for microencapsulation purposes, through several extraction techniques. The powder was acquired after drying of peels on kiln method under air circulation at a constant temperature of 30ºC in order to avoid degradation of terpenes and ease grinding. Three different types were under extraction test, being the first one to steam distillation, followed by extraction technique using solvents (aqueous and organic) and the last, but not the least the enzyme extraction technique. During the process of obtaining the extracts was also optimized chromatographic analysis method. The chromatograms showed that only the extraction with the organic solve 1,4 dioxane analyzed by GC-MS had submitted significant results due to extraction of volalite compounds. Compounds were fund in the largest amount of terpenic class, which cajá-umbu powder the majority terpenes were caryophylenne (6.173%), nootkatene (5.081%) and δ-cadinene (4.703%) and umbu powder predominated with the monoterpene limonene (98.853%). For enzymatic extraction was not possible to obtain the results for technical reasons, however they will be examined in future. However, the way these compounds were ectracted preclude its use for micro-encapsulation.