02044naa a2200361 a 450000100080000000500110000800800410001902400390006010000200009924501750011926000090029452009220030365000210122565000130124665000240125965000190128365000210130265300190132365300240134265300220136665300150138865300180140365300180142165300240143970000180146370000220148170000210150370000220152470000170154670000230156370000280158677300680161420664992017-10-16       2017    bl uuuu     u00u1 u    #d7 a10.1080/10412905.2016.11781832DOI1 aSOUZA, A. V. de  aInfluence of season, drying temperature and extraction time on the yield and chemical composition of marmeleiro (Croton sonderianus) essential oil.h[electronic resource]  c2017  aThe Caatinga biome is a source of hundreds aromatic plants with medicinal, food and cosmetics potential applications. One of them is Croton sonderianus which essential oil chemical composition and yielding were studied in function of season of harvesting, pre-treatment temperature and time of extraction. In average, after Gas Chromatography analysis, the four major components were spathulenol (40%), 1,8-cineole (25%), ?-pinene (8%) and caryophyllene oxide (6%), but such percentage varied greatly in function of the three parameters studied. Sample submitted to drying pre-treatment at 40°C and 2 hours of extraction time resulted in the highest yielding. Components such as spathulenol decreased near 20% from the dry to rainy season, while for germacrene D its amounts increased in the period. Such results will give support for C. sonderianus management in the field cultivation and essential oil exploration.  aMedicinal plants  aCaatinga  aCróton Sonderianus  aOleo essencial  aPlanta medicinal  aBioma caatinga  aBoactive properties  aEstresse hídrico  aMarmeleiro  aPhytochemical  aPlanta nativa  aVolatile components1 aBRITTO, D. de1 aSANTOS, U. S. dos1 aBISPO, L. dos P.1 aTURATTI, T. C. C.1 aLOPES, N. P.1 aOLIVEIRA, A, P. de1 aALMEIDA, J. R. G. da S.  tJournal of Essential Oil Researchgv. 29, n. 1, p. 76-84, 2017.