Results 271 to 280 of about 475,858 (311)

Volatile components in Andalusian vinegars

Zeitschrift für Lebensmittel-Untersuchung und -Forschung, 1987
The volatile fraction of different wine vinegars from Andalusia was studied, using gas chromatography. The identification of the peaks was based on the internal standard method. An outstanding content of volatile components was observed. High amounts were obtained for ethyl and methyl acetate as well as for isoamyl alcohols, which are the ...
Ana María Troncoso González, M. Guzmán Chozas   +1 more
openaire   +1 more source

Volatile components of violet leaves

Phytochemistry, 1992
Abstract Volatile components of violet leaves were extracted with 1,1,2-trichloro-1,2,2-trifluoroethane as well as hexane and analysed using GC, GC-MS and GC-FTIR. Quantitatively, the yields of leave solids varied greatly according to the experimental parameters. Qualitatively, the chemical composition differs with respect to the solvent used.
Jian Qin Cu, Francis Perineau, Antoine Gaset   +2 more
openaire   +1 more source

Volatile components of purple starthistle

Journal of Agricultural and Food Chemistry, 1990
Volatile components of purple starthistle (Centaurea calcitrapa L.) flowerhead buds, flowers, leaves, and stems were identified by gas chromatography-mass spectrometry. Of the 54 compounds identified, 49 were not previously reported in purple starthistle.
Ronald G. Binder, Charles E. Turner, Robert A. Flath   +2 more
openaire   +1 more source

Volatile components of Manchego cheese

Journal of Dairy Research, 1991
SummaryVolatile components of four batches of Manchego cheese were studied throughout their ripening process. Samples were submitted to a micro simultaneous distillation-extraction procedure, and then analysed by capillary gas chromatography (GC) and combined GC and mass spectrometry.
Isabel Martínez-Castro, Jesus Sanz, Lourdes Amigo, Mercedes Ramos, Pedro Martín-Alvarez   +4 more
openaire   +1 more source

Component-Driven Regime-Switching Volatility

Journal of Financial Econometrics, 2012
We develop a new class of regime-switching volatility models that are characterized by high-dimensional state spaces, parsimonious transition matrices, and ARMA dynamics for the log volatility process. This combination of features is achieved by assuming that we can decompose the Markov chain that describes regime dynamics into a number of two-state ...
Jeff Fleming, Chris Kirby
openaire   +2 more sources

Sampler of volatile components

2002
L'invention porte sur un échantillonneur de composés volatils qui combine des procédés de deshydratation et de desalcoolisaton pour produire un échantillon dans lequel ces produits sont absents. En amont de l'analyseur d'odeur, ledit échantillonneur de composés volatils permet d'éviter l'interférence de l'eau et de l'éthanol et d'améliorer la ...
Ragazzo, A., Baldet, Pierre, Ghommidh, Charles, Chalier, Pascale, Deratani, A., Boulet, J.C., Grenier, P., Crouzet, J., Chanie, E., Perrain, A.   +9 more
openaire   +1 more source

Volatile components of bittermelon

Journal of Agricultural and Food Chemistry, 1989
Ronald G. Binder, Robert A. Flath, T. Richard Mon   +2 more
openaire   +1 more source

Modelling Different Volatility Components

2002
This paper considers simultaneous modelling of seasonality, slowly changing un- conditional variance and conditional heteroskedasticity in high-frequency fiancial returns. A new approach, called a seasonal SEMIGARCH model, is proposed to perform this by introducing multiplicative seasonal and trend components into the GARCH model.
openaire   +1 more source

Volatile components of apricot

Journal of Agricultural and Food Chemistry, 1967
W. G. Jennings, C. S. Tang
openaire   +1 more source

Addressing distress management challenges: Recommendations from the consensus panel of the American Psychosocial Oncology Society and the Association of Oncology Social Work

Ca-A Cancer Journal for Clinicians, 2021
Teresa L Deshields, Ryan D Nipp
exaly