pressurized liquid extraction.
Obtaining anthocyanin-rich extracts from frozen açai (Euterpe oleracea Mart.) pulp using pressurized liquid extraction
... Açai is considered a functional food, and in addition to being a source of energy and fiber, it is a valuable source of bioactive compounds such as anthocyanins, minerals and fatty acids. In the present work, ...
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Avaliação de endócrinos e do micropoluente colesterol em estações de tratamento de esgoto sanitário
... natural and synthetic estrogens and their conjugates in sewage sludge by pressurized liquid extraction and liquid chromatography – tandem mass spectrometry. Investigati[r] ...
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Rev. bras. farmacogn. vol.25 número2
... employing pressurized liquid extraction, dispersive liquid–liquid microextraction and dispersive solid phase extraction have been described in the literature for the analysis of ...
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J. Braz. Chem. Soc. vol.24 número4
... performance liquid chromatography with UV detection (HPLC-UV), but the limits of detection of the method of the HPLC-UV techniques, employing direct injection of samples, are too high for the detection of the low ...
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OPTIMIZATION OF THE EXTRACTION OF FREE FATTY ACIDS APPLIED TO BIODIESEL PRODUCTION
... a higher number of stages with S/F ratios varying from 1.27 to 2. According to Mohsen-Nia and Khodayari (2008), methanol presents selectivities from 2.5 to 4 times higher than ethanol for oleic acid extraction ...
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O PTIMIZATION ANDV ALIDATION OF THES
... The development and application of methodologies for the determination of pesticides in the soil face some obstacles, such as the concentration of these substances after application, which can be low or high, and the ...
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Diazepam and nordiazepam in plasma: liquid-liquid and solid phase extraction in sample pre-treatment for high performance liquid chromatography analysis.
... PLASMA: LIQUID-LIQUID AND SOLID PHASE EXTRACTION IN SAMPLE PRE- TREATMENT FOR HIGH PERFORMANCE LIQUID CHROMATOGRAPHY ...techniques, liquid-liquid (LLE) and solid phase ...
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J. Braz. Chem. Soc. vol.18 número5
... on liquid-liquid extraction using methanol as a solvent and on direct analyte determination in the extract by mass spectro- metry, utilizing selective ion monitoring (SIM) to determine different ...
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Azeotropic separation: playing with the ionicity of ionic liquids
... The work presented in this thesis explores three different combinations of ILs and ISs, namely one IL with several ISs, different ILs with one IS and one IL with different concentrations of the same IS. Studies of the ...
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ANTIMYCOBACTERIAL ACTIVITY OF A BREVIBACILLUS LATEROSPORUS STRAIN ISOLATED FROM A MOROCCAN SOIL Mohammed Hassi1 ; Souraya El Guendouzi1 ; Abdelleatif Haggoud1 ; Susana David2 ; Saad Ibnsouda1 ; Abdellah Houari1; Mohammed Iraqui1
... The treatment of tuberculosis has become more difficult with the worldwide spread of multidrug-resistant (MDR) and extensively drug-resistant (XDR) strains of Mycobacterium tuberculosis. Moreover, the prevalence of human ...
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Recovery of metals from highly concentrated acid mine drainage by liquid-liquid extraction
... complete extraction of copper from AMD, which makes an 8/1 ratio of its active compound (5-nonyl-2-hydroxy-benzaldoxime) to copper ...of extraction with such 30% (v/v) Acorga M5640 dilution allows total ...
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J. Braz. Chem. Soc. vol.22 número9
... novel liquid-phase microextraction technique, named dispersive liquid-liquid microextraction ...of extraction solvent and based on a ternary component solvent system in which the ...
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Optimization of liquid-liquid extraction step for clavulanic acid from fermentation broth using solvent mixtures.
... OF LIQUID-LIQUID EXTRACTION STEP FOR CLAVULANIC ACID FROM FERMENTATION BROTH USING SOLVENT ...the extraction stage of clavulanic acid (CA), which is one of the steps in the purification ...
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Analysis of pesticides in water using liquid-liquid extraction with partition at low temperature and high performance liquid chromatography.
... USING LIQUID-LIQUID EXTRACTION WITH PARTITION AT LOW TEMPERATURE AND HIGH PERFORMANCE LIQUID ...the liquid-liquid extraction technique with partition at low temperature ...
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LIQUID-LIQUID EQUILIBRIUM AND KINETICS OF ETHANOLIC EXTRACTION OF SOYBEAN OIL USING ETHYL ACETATE AS CO-SOLVENT
... fluid extraction (de Melo et ...fluid extraction (Coelho et ...ultrasound-assisted extraction (Adam et ...in extraction efficiency (Baümler et ...
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J. Braz. Chem. Soc. vol.8 número6
... the liquid-liquid extraction of the complex formed between iron(III) and 1-(2-thiazolylazo)-p-cresol ...the extraction, back extraction and mineralization of the organic phase were ...
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Evaluation of the Extraction Process of the Essential Oil from Cymbopogon schoenanthus with Pressurized Carbon Dioxide
... constant extraction, where the solute is extracted essentially by convection; (ii) period of decrease rate, where convection and diffusion act; (iii) diffusional period, where the diffusion of the oil and of the ...
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J. Braz. Chem. Soc. vol.17 número5
... use, liquid membrane processes have been proposed as clean ones owing to their characteristics of high specificity, low energy utilisation, the extraction and stripping steps are combined in a single ...
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J. Braz. Chem. Soc. vol.25 número4
... miniaturized liquid-phase extraction procedure based on directly suspended droplet microextraction combined with flame atomic absorption spectrometry was developed for determination of trace amounts of iron ...
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Liquid-liquid equilibrium for water furfural extraction using different solvents and temperatures in the software aspen plus / Equilíbrio líquido-líquido para extração de furfural da água usando diferentes solventes e temperaturas no software aspen plus
... The extraction efficiency was compared and the data shown in Table ...solvent extraction capacity can be ...and extraction factor obtained were p-Xylene and Toluene in both ...
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