3 documents found, page 1 of 1
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...
Bioproducts from forest biomass II. Bioactive compounds from the steam-distilla...
Tavares, Claudia S.; Martins, Alice; G, Miguel; Carvalheiro, Florbela; Duarte, Luis C.; Gameiro, Jose A.; Cristina Figueiredo, A.; Roseiro, Luisa B.Obtaining essential oils and hydrolates from underutilized biomass is an economic and sustainable way for production of these high added-value bioproducts. However, this process still generates large amounts of residues as the by-products obtained during distillation, which can be a concern for the environment, but also adequate substrates for other applications. Considering this fact, the waste distilled by-pr...
The effect of nanocoatings enriched with essential oils on ‘Rocha’ pear long st...
Gago, Custódia; Antão, Rui; Dores, Cristino; Guerreiro, Adriana; G, Miguel; Faleiro, Maria Leonor; Figueiredo, Ana Cristina; Antunes, Maria DulceThe effect of coating 'Rocha' pears with alginate-based nanoemulsions enriched with lemongrass essential oil (LG) or citral (Cit) was investigated. Fruit were treated with the nanoemulsions: sodium alginate 2% (w/w) + citral 1% (w/w) (Cit1%); sodium alginate 2% (w/w) + citral 2% (w/w) (Cit2%); sodium alginate 2% (w/w) + lemongrass 1.25% (w/w) (LG1.25%); sodium alginate 2% (w/w) + lemongrass 2.5% (w/w) (LG2.5%)....