4 documents found, page 1 of 1
β-Cyclodextrin inclusion complexes of combined Moroccan Rosmarinus officinalis,...
El Kharraf, Sara; Farah, Abdellah; EL-GUENDOUZ, Soukaina; Lourenço, João P.; Rosa Da Costa, Ana; El Hadrami, El Mestafa; Machado, Alexandra M.A combined volatile oil (VO) was extracted from Rosmarinus officinalis, Lavandula angustifolia and Citrus aurantium by simultaneous hydro- and steam-distillation, and encapsulated in beta-cyclodextrin by co-precipitation. Response surface methodology (RSM) was used to optimize microencapsulation conditions. The variable recovered powder, VO retention degree, and inclusion efficiency were investigated based on t...
Impact of fifteen combinations of the main components of rosemary, lavender and...
Kharraf, Sara El; EL-GUENDOUZ, Soukaina; Farah, Abdellah; Mateus, Maria Da Conceição; Hadrami, El Mestafa El; Miguel, Maria GracaSince ancient times, essential oils or their volatiles have been used in food, health and aromatherapy. Essen-tial oils are complex mixtures constituted by dozens of compounds, which makes it difficult to attribute their biological properties to this or that compound or compound combinations. Moreover, the quantification of the volatiles is generally made through their relative percentage abundances. In the pre...
Encapsulation of Rosmarinus officinalis essential oil in β‐cyclodextrins
El Kharraf, Sara; Farah, Abdellah; El Hadrami, El Mestafa; El‐Guendouz, Soukaïna; Lourenço, João P.; Rosa Da Costa, Ana; Miguel, MariaThe aim of this study was to investigate the encapsulation process of R. officinalis (rosemary) essential oil (REO) in beta cyclodextrin (beta-CD), by co-precipitation, using response surface methodology (RSM), specifically the face-centered central composite design (FCCCD). Solid-to-solid (beta-CD/REO) and liquid-to-liquid (ethanol/water) ratios were selected as independent variables and their influence on the...
Two extraction methods of essential oils: conventional and non-conventional hyd...
El Kharraf, Sara; Farah, Abdellah; G, Miguel; EL-GUENDOUZ, Soukaina; El Hadrami, El MestafaThe traditional extraction of essential oils exposes plant material to high temperatures for hours, which may lead to the production of artifacts, even originating unpleasant odors and loss of quality. In addition, this procedure is energy-consuming, which makes it an expensive method. The present work has been focused on a method that combines hydrodistillation and subsequent extraction with water vapor and vo...