@article{5343,
  author       = {{Zapp, Jürgen and Torenz, R.}},
  issn         = {{1521-3811 }},
  journal      = {{ebensmittelchemie : Zeitschrift der Lebensmittelchemischen Gesellschaft, Fachgruppe in der Gesellschaft Deutscher Chemiker }},
  number       = {{2}},
  pages        = {{S. 33}},
  publisher    = {{Wiley-VCH}},
  title        = {{{Auswirkungen von Rohkaffeedämpfung und Röstung auf die Kaffeesäuren}}},
  doi          = {{ https://doi.org/10.1002/lemi.201290041}},
  volume       = {{65}},
  year         = {{2011}},
}

@article{5406,
  abstract     = {{
The pentacyclic triterpenes oleanolic acid (OA) and ursolic acid (UA) in Salvia triloba are attractive ingredients for cosmetic and pharmaceutical formulations. These triterpenoids are constitution isomers and differ only in the position of one methyl group in their chemical structures. Therefore it is difficult to achieve a baseline separation by standard RP-HPLC systems. Another challenge is that the complex plant contains a large variety of similar compounds. To achieve precise results for the target molecules, these compounds should be removed prior to analysis. Due to the large application of these two triterpenes, a fast quantification method is favored. If the triterpenes are extracted with aqueous two-phase systems, the target substances are enriched in a surfactant-rich phase. For this application, it is desirable to develop a method that is capable of quantifying both triterpenes directly by RP-HPLC without additional purification steps.

The optimal chromatographic conditions for pure substances as well as for crude surfactant-containing extracts were accomplished on a Nucleodur C18 ISIS column by isocratic elution with methanol/water/acetic acid/triethanolamine (90:10:0.04:0.02 v/v) as the mobile phase and a column temperature of 10°C. The flow rate was 0.6 mL/min, and the detection wavelength was 210 nm. With these parameters, a baseline separation was achieved and the calibration curve showed a very good linearity (R2 > 0.999 for OA and UA) within the test range. The method is simple, rapid, and reliable for the quantification of crude extracts from plant material.
}},
  author       = {{Schneider, Pia and Hosseiny, S. S. and Bischoff, F. and Müller, Ulrich and Bart, H. J. and Schlitter, K. and Jordan, V.}},
  issn         = {{1525-6030}},
  journal      = {{Instrumentation Science & Technology}},
  keywords     = {{oleanolic acid, Salvia triloba, surfactants, triterpenes, ursolic acid}},
  pages        = {{407--418}},
  title        = {{{SURFACTANT MEDIATED EXTRACTION OF TRITERPENES AND THEIR DIRECT HPLC ANALYSIS FROM THE MICELLAR SYSTEM}}},
  doi          = {{10.1080/10739149.2011.602167}},
  year         = {{2011}},
}

@inproceedings{5409,
  author       = {{Pliske, Roland and Müller, Ulrich}},
  location     = {{Berlin}},
  title        = {{{Investigation on increasing the velocity of the freeze drying by friction effects}}},
  year         = {{2011}},
}

@inproceedings{5410,
  author       = {{Zapp, Jürgen and Wagner, A.}},
  booktitle    = {{Fachtagung Numerische Strömungssimulation}},
  location     = {{Lemgo}},
  title        = {{{Numerische Strömungssimulation in der Verfahrenstechnik}}},
  year         = {{2011}},
}

@inproceedings{5411,
  author       = {{Becker, Barbara}},
  booktitle    = {{Fresenius Tagung "Analytik und QS", Mainz, 13./14.10.2011}},
  location     = {{Mainz}},
  title        = {{{Mikrobiologische Richt- und Warnwerte aus der DGHM}}},
  year         = {{2011}},
}

@inproceedings{5412,
  author       = {{Schneider, Jan and Schwarzer, Knut and Dammann, Anna and Müller, Ulrich and Voetz, M.}},
  booktitle    = {{Fresenius Fachtagung Abfüllung sensibler Getränke, Berlin, 29.-30.10.2011}},
  location     = {{Berlin}},
  title        = {{{Minimal Processing - Der Weg zur Produkt und Ressourcen schonenden Getränkepasteurisation}}},
  year         = {{2011}},
}

@inproceedings{5413,
  author       = {{Becker, Barbara}},
  booktitle    = {{GDL-Forum in Verbindung mit der EFFoST Annual Conference "Process-Structure-Functions-Relationships”, Berlin, 09.-11.11.2011}},
  location     = {{Berlin}},
  title        = {{{Bedeutung von Viren in der Lebensmittelproduktion}}},
  year         = {{2011}},
}

@inproceedings{5414,
  author       = {{Müller, Ulrich and Pliske, Roland}},
  location     = {{Paderborn}},
  title        = {{{Dynamische Gefriertrocknung in Feststoffmischern}}},
  year         = {{2011}},
}

@inproceedings{5415,
  author       = {{Schneider, Jan and Schwarzer, Knut and Dammann_, Anna and Müller, Ulrich and Voetz, M.}},
  location     = {{Berlin}},
  title        = {{{Ressourcen schonende Bierpasteurisation}}},
  year         = {{2011}},
}

@inproceedings{5416,
  author       = {{Becker, Barbara}},
  booktitle    = {{Rapid Microbiological Methods Conference, Berlin, 07./08.12.2011}},
  location     = {{Berlin}},
  title        = {{{Experience with Rapid Microbiological Methods in Food Testing}}},
  year         = {{2011}},
}

@inproceedings{5417,
  author       = {{Müller, Ulrich and Wilkens, H.}},
  booktitle    = {{8. Lemgoer Nachmittag zu Entkeimungsfragen, Hochschule Ostwestfalen-Lippe, Lemgo, 09.12.2011}},
  location     = {{Lemgo}},
  title        = {{{Tandem-Vortrag: "Luftsterilfiltration"("Grundlagen Luftfiltern", "Die Qualität der Umgebungsluft nach der Filtration der Außenluft bis zum Einlass")}}},
  year         = {{2011}},
}

@inproceedings{5610,
  author       = {{Heiss, Stefan}},
  booktitle    = {{6. Innovationsforum "Automation als Innovationsmotor des deutschen Maschinenbaus" OWL-Maschinenbau}},
  title        = {{{ IT-Sicherheit in der industriellen Automatisierungstechnik}}},
  year         = {{2011}},
}

@book{5611,
  author       = {{Trsek, Henning and Jasperneite, Jürgen and Heiss, Stefan}},
  issn         = {{1869-2087}},
  title        = {{{ RAvE - Real-time automation networks in moving industrial environments}}},
  year         = {{2011}},
}