Composition and antioxidant activity of Thymus vulgaris volatiles: comparison between supercritical fluid extraction and hydrodistillation - Grosso, C; Figueiredo, A C; Burillo, J; Mainar, A M; Urieta, J S; Barroso, J G; Coelho, J A; Palavra, A M (J Sep Sci, 2010)