Browsing by Person Zimmermann, Ralf

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Showing results 1 to 16 of 16
Issue DateTitleAuthor(s)
1999Anwendung der resonanzverstärkten Lasermassenspektrometrie (REMPI-TOFMS) zur On-Line Analyse Lebensmitteltechnologischer ProzesseZimmermann, Ralf; Dorfner, Ralph; Heger, Hans-Jörg; Kettrup, Antonius; Yeretzian, Chahan
1996Application of laser ionization mass spectrometry for on-line monitoring of volatiles in the headspace of food products : roasting and brewing of coffeeZimmermann, Ralf; Heger, Hans Jörg; Yeretzian, Chahan; Nagel, Holger; Boesl, Ulrich
2014Application of on-line analysis of coffee roasting with PTR-ToF-MS on industrial roasters : pros and consGlöss, Alexia; Schönbächler, Barbara; Sanchez Lopez, Jose; Zimmermann, Ralf; Bongers, Sandra; Koziorowski, Thomas; Yeretzian, Chahan
2014Application of photo-ionisation time-of-flight mass spectrometry for the studying of flavour compound formation in coffee roasting of bulk quantities and single beansSanchez Lopez, Jose; Zimmermann, Ralf; Yeretzian, Chahan
2015-10-07Exploring the extraction dynamics of green tea by PTR-ToF_MSSanchez Lopez, Jose; Yener, Sine; Bonn, Günther; Märk, Tilmann; Zimmermann, Ralf; Yeretzian, Chahan; Biasoli, Franco
2015Extraction kinetics of coffee aroma compounds by on-line PTR-MSSanchez Lopez, Jose; Zimmermann, Ralf; Yeretzian, Chahan
2016Extraction kinetics of coffee aroma compounds during espresso extraction : on-line analysis by PTR-MSSanchez Lopez, Jose; Wellinger, Marco; Gloess, Alexia; Zimmermann, Ralf; Yeretzian, Chahan
2015Extraction kinetics of coffee aroma compounds during espresso extraction on a professional : on-line analysis by PTR-ToF-MSSanchez Lopez, Jose; Wellinger, Marco; Gloess, Alexia; Zimmermann, Ralf; Yeretzian, Chahan
2016-04-25Extraction kinetics of coffee aroma compounds using a semi-automatic machine : on-line analysis by PTR-ToF-MSSánchez López, José Antonio; Wellinger, Marco; Gloess, Alexia N.; Zimmermann, Ralf; Yeretzian, Chahan
2014Insight into the time-resolved extraction of aroma compounds during espresso coffee preparation : on-line monitoring by PTR-ToF-MSSánchez López, José Antonio; Zimmermann, Ralf; Yeretzian, Chahan
2004-01-22Laser mass spectrometry as on-line sensor for industrial process analysis : process control of coffee roastingDorfner, Ralph; Ferge, Thomas; Yeretzian, Chahan; Kettrup, Antonius; Zimmermann, Ralf
2002On-line analysis of coffee roasting off-gas with laser ionisation (REMPI and SPI) mass spectrometry measurement at large scale roasting facilities and on-line determination of the roast degreeDorfner, Ralph; Ferge, Thomas; Yeretzian, Chahan; Kettrup, Antonius; Zimmermann, Ralf
1997On-line monitoring of food volatiles by laser ionization mass spectroscopy (REMPI_TOFMS) : first results for coffee, tea and cocoaZimmermann, Ralf; Heger, Hans Jörg; Dorfner, Ralph; Yeretzian, Chahan; Kettrup, Antonius; Boels, Ulrich
2016-09Persistence of aroma volatiles in the oral and nasal cavities : real-time monitoring of decay rate in air exhaled through the nose and mouthSánchez-López, José Antonio; Ziere, Aldo; Martins, Sara I F S; Zimmermann, Ralf; Yeretzian, Chahan
2016-05Rapid and direct volatile compound profiling of black and green teas (Camellia sinensis) from different countries with PTR-ToF-MSYener, Sine; Sánchez-López, José A.; Granitto, Pablo M.; Cappellin, Luca; Märk, Tilmann D.; Zimmermann, Ralf; Bonn, Günther K.; Yeretzian, Chahan; Biasioli, Franco
2003Real-time monitoring of 4-vinylguaiacol, guaiacol and phenol during roasting by resonant laser ionisation time-of-flight mass-spectrometryDorfner, Ralph; Ferge, Thomas; Kettrup, Anthonius; Zimmermann, Ralf; Yeretzian, Chahan