Détermination de la dimension verticale d'occlusion, analyse anthropocéphalométrique selon la règle de Willis

TOULOUSE3-BU Santé-Centrale (315552105) / SudocSudocFranceF

La couleur des vins rosés : apports de la spectrométrie de masse

La couleur des vins rosés : apports de la spectrométrie de mass

Unraveling the color of Rosé wines

conférence plénièreUnraveling the color of Rosé wines. 7. International Workshop on Anthocyanins - IWA 201

Relevance of using both aerobic and anaerobic enrichment vials for optimizing rapid diagnosis of osteoarticular infections

International audienceThe performance of a pair of blood culture vials (BACTEC® Plus Aerobic/F, and Anaerobic Lytic/F) were analyzed in 496 osteoarticular specimens (246 synovial fluids and 250 crushed bone samples), obtained in patients during routine diagnostic procedure at the Teaching Hospital of Rennes (France). The positive detection times were recorded for a 14 day-incubation period, and compared between both vials and with agar cultures. For samples from infected patients, the positive detection time was significantly shortened when vials were used compared to agar plates (p < 0.001). Median positive detection time was later with the Anaerobic Lytic/F vials (15.0 h) compared to the Plus Aerobic/F (13.0 h). Positivity rate was similar for Anaerobic Lytic/F vials (80.4%) and Plus Aerobic/F vials (83.2%) (p = 0.25). Some microorganisms were only identified from aerobic vials (15.5%) or from anaerobic vials (12.7%). The use of both atmosphere conditions for optimal positive detection time is therefore critical

Unravelling the color of a worldwide Rosé wine collection by UHPLC-MRM-MS polyphenol profiling

Unravelling the color of a worldwide Rosé wine collection by UHPLC-MRM-MS polyphenol profiling. 64. ASMS conference on Mass Spectrometry and Allied Topic

Unravelling the color of Rosé wine: Polyphenol profiling by UHPLC-MRM-MS gives new insights into the color diversity of worldwide Rosé wines

Unravelling the color of Rosé wine: Polyphenol profiling by UHPLC-MRM-MS gives new insights into the color diversity of worldwide Rosé wines. 2. International symposium on profilin

Elucidating the Color of Rosé Wines Using Polyphenol-Targeted Metabolomics

The color of rosé wines is extremely diverse and a key element in their marketing. It is due to the presence of anthocyanins and of additional pigments derived from them and from other wine constituents. To explore the pigment composition and determine its links with color, 268 commercial rosé wines were analysed. The concentration of 125 polyphenolic compounds was determined by a targeted metabolomics approach using ultra high-performance liquid chromatography coupled to triple quadrupole mass spectrometry (UHPLC-QqQ-MS) analysis in the Multiple Reaction Monitoring (MRM) mode and the color characterised by spectrophotometry and CieLab parameters. Chemometrics analysis of the composition and color data showed that although color intensity is primarily determined by polyphenol extraction (especially anthocyanins and flavanols) from the grapes, different color styles correspond to different pigment compositions. The salmon shade of light rosé wines is mostly due to pyranoanthocyanin pigments, resulting from reactions of anthocyanins with phenolic acids and pyruvic acid, a yeast metabolite. Redness of intermediate color wines is related to anthocyanins and carboxypoyranoanthocyanins and that of dark rosé wines to products of anthocyanin reactions with flavanols while yellowness of these wines is associated to oxidation

Rosé Wines: impact of storage conditions in tank on the polyphenol composition and color

Rosé Wines: impact of storage conditions in tank on the polyphenol composition and color. Congrès d'Oenologi

Pigment composition of rosé wines; influence of oxygen exposure

Pigment composition of rosé wines; influence of oxygen exposure. 219. American chemical Society national meetin