Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Carmen L. Queiroga"'
Autor:
Fernando A. Cabral, Tábata Tayara Garmus, Walter A. Rammazzina Filho, Natasha Aires de Oliveira Giani, Carmen L. Queiroga
Publikováno v:
The Journal of Supercritical Fluids. 143:275-285
To evaluate the selectivity of supercritical carbon dioxide (scCO2) as a solvent to deacidify vegetable oils, the solubility of oleic acid and of a mixture of oleic acid and refined sunflower oil in scCO2 was measured. Sunflower oil was adopted as a
Autor:
Julian Martínez, Camila A. Rezende, José Luis Pasquel Reátegui, Flávia Pavanel Fernandes, Adilson Sartoratto, Carmen L. Queiroga, Philipe dos Santos
Publikováno v:
The Journal of Supercritical Fluids. 140:364-371
Suspended particles of copaiba (Copaifera officinalis) oleoresin were produced by supercritical fluid extraction of emulsions (SFEE), using modified starch Hi-Cap 100® as core material. First, ultrasound was applied to produce oil in water (O/W) emu
Autor:
Carmen L. Queiroga, José Luis Pasquel Reátegui, Francisco Manuel Barrales, Camila A. Rezende, Julian Martínez
Publikováno v:
Industrial Crops and Products. 108:128-139
The oleoresin of copaiba has many pharmacological properties, such as anti-inflammatory, antiseptic, and cicatrizing, besides helping to treat skin diseases, among other applications. In order to improve its activity, copaiba oleoresin was encapsulat
Autor:
Pedro Melillo de Magalhães, Ana Carolina A. V. Kayano, Carmen L. Queiroga, Fabio T. M. Costa, Fernando A. Cabral, Hugo A. Martinez-Correa, Julia T. Paula
Publikováno v:
The Journal of Supercritical Fluids. 119:122-129
Rhizome of Curcuma longa L. is rich in curcumin which is also an important natural pigment and has important biological activity. In order to obtain curcumin concentrated extracts, one-step and two-step processes were employed. The one step process i
Autor:
Cícero Deschamps, Marcos L. Corazza, Agnes de Paula Scheer, Michele C. Mesomo, Karina Czaikoski, Carmen L. Queiroga
Publikováno v:
Journal of Essential Oil Research. 29:93-100
This article reports a study on the extraction and evaluation of essential oil obtained from dried flowers of Eupatorium intermedium, a plant native to southern Brazil that belongs to the Asteraceae family. The hydrodistillation achieved a maximum yi
Publikováno v:
The Journal of Supercritical Fluids. 99:68-75
Extraction of bioactive compounds requires frequent changes in the extraction techniques due to the quality requirements in the food, pharmaceutical and cosmetic industries. The compounds of the polyphenolic family represent an important group of bio
Autor:
Osmar R. Dalla Santa, Karina Czaikoski, Agnes de Paula Scheer, Carmen L. Queiroga, Michele C. Mesomo, Marcos L. Corazza
Publikováno v:
The Journal of Supercritical Fluids. 97:145-153
The extraction of Eupatorium intermedium flowers was evaluated using supercritical CO2 (scCO2) and compressed propane. Experiments were carried out under the following conditions using scCO2 as the solvent: 15.0, 20.0 and 25.0 MPa and at 303.15, 328.
Autor:
Gustavo Henrique Bueno Duarte, Fernando A. Cabral, Clarice Weis Arns, Marcos N. Eberlin, Raphaela G. Bitencourt, Carmen L. Queiroga, Luciana K. Kohn
Publikováno v:
The Journal of Supercritical Fluids. 95:355-363
Melia azedarach L. is a plant with wide use in folk medicine since it contains many bioactive compounds of interest. The present study aimed to extract bioactive compounds from M. azedarach fruits by a sequential process in fixed bed using various so
Publikováno v:
The Journal of Supercritical Fluids. 92:272-281
Saponins are surfactants that reduce the surface tension of aqueous solutions, besides having pharmacological actions. In order to extract and fractionate saponins from Pfaffia glomerata roots and Hebanthe eriantha roots using supercritical technolog
Autor:
M.Q. Cavalcante, P.M. de Magalhães, Carmen L. Queiroga, R.N. Coser, Adilson Sartoratto, P.C. Ferraz
Publikováno v:
Journal of Essential Oil Research. 26:334-337
Baccharis dracunculifolia is a shrub native to Brazil and an important botanical source for propolis production. The essential oil from the leaves of B. dracunculifolia DC (Asteraceae), popularly known as broom oil, presents pharmacological activitie