Decaffeination of yerba mate by supercritical fluid extraction: Improvement, mathematical modelling and infusion analysis

Hypericum carinatum: supercritical fluid extraction, HPLC determination and mathematical modeling

The genus Hypericum has been studied worldwide due to its pharmacological and biological effects. Uliginosin B, a dimeric phloroglucinol, and the benzophenones cariphenone A and B, for example, are the major responsible for the anti-proliferative and antimicrobial activities of Hypericum carinatum, a native species to southern Brazil. Although presenting therapeutic potential, these compounds a...

Supercritical Fluid Extraction+supercritical Fluid Chromatography

high pressures also requires special equipment. In summary, both RESS crystallization and SAS crystallization appear to be promising methods for generating supersaturation and therefore represent alternatives to conventional crystallization. Such alternatives may prove attractive in applications such as polymer and pharmaceutical processing, or in particle design for drug delivery. It is possib...

Supercritical Fluid Extraction

Supercritical Fluid Extraction

ganic trace analysis. Pure Applied Chemistry 55: 1943. FiReld FW and Haines PJ (1995) Environmental Analytical Chemistry. London: Chapman and Hall. Luque de CastroMD andDa Silva MP (1997) Strategies for solid sample pretreatment. Trends in Analytical Chemistry 16: 16. Luque de Castro MD and Garcia-Ayuso LE (1998) Soxhlet extraction of solid materials: an outdated techniquewith a promising innov...

Development of Environmental Analysis Methods Using Supercritical Fluid Extraction and Supercritical Fluid Chromatography

Supercritical fluid chromatography (SFC) was first attempted in 1962 [1]. Although several papers on SFC were published during the subsequent two decades [2], their content did not encourage many researchers to investigate this technique. After the introduction of fused-silica capillary SFC in the early 1980s [3], many papers describing fundamental studies as well as application studies appeare...