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1

Steam volatile aroma constituents of roasted coffee: Neutral fraction

Otto Georg Vitzthum, Peter Werkhoff

Journal:

European Food Research and Technology

Year:

1976

Language:

english

File:

PDF, 743 KB

english, 1976

2

Vacuum Headspace Method in Aroma Research: Flavor Chemistry of Yellow Passion Fruits

Werkhoff, P., Güntert, M., Krammer, G., Sommer, H., Kaulen, J.

Journal:

Journal of Agricultural and Food Chemistry

Year:

1998

Language:

english

File:

PDF, 242 KB

english, 1998

3

METHYL DIHYDROJASMONATE AND ITS STEREOISOMERS: SENSORY PROPERTIES AND ENANTIOSELECTIVE ANALYSIS

Werkhoff, P., Krammer, G., Brennecke, S., Roloff, M., Bertram, H.-J.

Journal:

Food Reviews International

Year:

2002

Language:

english

File:

PDF, 686 KB

english, 2002

4

New volatile constituents of black tea aroma

Vitzthum, Otto G., Werkhoff, Peter., Hubert, Peter.

Journal:

Journal of Agricultural and Food Chemistry

Year:

1975

Language:

english

File:

PDF, 462 KB

english, 1975

5

Determination of the substitution pattern of di- and trisubstituted pyrazines by 15N, 13C and 1H NMR spectroscopy

Horst Sommer, Heinz-Juergen Bertram, Gerhard E. Krammer, Claus Oliver Schmidt, Wolfgang Stumpe, Peter Werkhoff, Michael Zviely

Journal:

Magnetic Resonance in Chemistry

Year:

2000

Language:

english

File:

PDF, 1.16 MB

english, 2000

6

Isolierung, Synthese und absolute Konfiguration von Filberton, dem aktiven Prinzip des Haselnußaromas

Johann Jauch, Dieter Schmalzing, Prof. Dr. Volker Schurig, Dr. Roland Emberger, Dr. Rudolf Hopp, Dr. Manfred Köpsel, Dr. Wilhelm Silberzahn, Dr. Peter Werkhoff

Journal:

Angewandte Chemie

Year:

1989

File:

PDF, 370 KB

1989

7

Isolation, Synthesis, and Absolute Configuration of Filbertone – the Principal Flavor Component of the Hazelnut

Dipl.-Chem. Johann Jauch, Dipl.-Chem. Dieter Schmalzing, Prof. Dr. Volker Schurig, Dr. Roland Emberger, Dr. Rudolf Hopp, Dr. Manfred Köpsel, Dr. Wilhelm Silberzahn, Dr. Peter Werkhoff

Journal:

Angewandte Chemie International Edition

Year:

1989

Language:

english

File:

PDF, 258 KB

english, 1989

8

Progress in all-glass stream splitting systems in capillary gas chromatography. Part I: Application of a simple “glass-cap-cross” as effluent splitter for splitless and on-column injection

W. Bretschneider, P. Werkhoff

Journal:

Journal of Separation Science

Year:

1988

Language:

english

File:

PDF, 323 KB

english, 1988

9

Progress in all-glass stream splitting systems in capillary gas chromatography. Part II: Application of a simple “glass-cap-cross” as inlet splitter for on-column injection

W. Bretschneider, P. Werkhoff

Journal:

Journal of Separation Science

Year:

1988

Language:

english

File:

PDF, 287 KB

english, 1988

10

Reversible Umlagerungen bei Nitro-olefinen, II1) 1.3-Umlagerung von Nitromethylbutenen

Gerhard Hesse, Peter Werkhoff

Journal:

European Journal of Organic Chemistry

Year:

1970

File:

PDF, 307 KB

1970

11

Die massenspektrometrische Identifizierung von Alkyl-1, 3-thiazolen

Armin Haag, Peter Werkhoff

Journal:

Journal of Mass Spectrometry

Year:

1976

File:

PDF, 577 KB

1976

12

Structure determination of 4-methyl-3-thiazoline in roasted sesame flavour

P. Schieberle, M. Güntert, H. Sommer, P. Werkhoff

Journal:

Year:

1996

Language:

english

File:

PDF, 326 KB

english, 1996

13

Gaschromatographische und massenspektroskopische untersuchung von l-theanin und seines trimethylsilylderivats

O. Vitzthum, P. Werkhoff

Journal:

Journal of Chromatography A

Year:

1974

File:

PDF, 671 KB

1974

14

Dynamic headspace gas chromatography: concentration of volatile components after thermal desorption by intermediate cryofocusing in a cold trap : I. Principle and applications

Peter Werkhoff, Wilfried Bretschneider

Journal:

Journal of Chromatography A

Year:

1987

Language:

english

File:

PDF, 882 KB

english, 1987

15

Dynamic headspace gas chromatography: concentration of volatile components after thermal desorption by intermediate cryofocusing in a cold trap : II. Effect of sampling and desorption parameters on recovery

Peter Werkhoff, Wilfried Bretschneider

Journal:

Journal of Chromatography A

Year:

1987

Language:

english

File:

PDF, 429 KB

english, 1987

16

Synthesis of 1H-pyrrolo-[1.2-c]-[1.3]-thiazine: A new sulphur-nitrogen heterocycle

T. Thielmann, M. Güntert, M. Köpsel, P. Werkhoff

Journal:

Tetrahedron Letters

Year:

1989

Language:

english

File:

PDF, 81 KB

english, 1989

17

Synthesis of 1H-Pyrrolo-[2.1-c]-1,4-thiazine – A Novel Sulfur-Nitrogen Heterocyclic Flavor Constituent

Dr. H.-J. Bertram, M. Güntert, H. Sommer, T. Thielmann, P. Werkhoff

Journal:

Advanced Synthesis & Catalysis

Year:

1993

Language:

english

File:

PDF, 185 KB

english, 1993

18

OXAZOLES AND THIAZOLES IN COFFEE AROMA

O. G. VITZTHUM, P. WERKHOFF

Journal:

Journal of Food Science

Year:

1974

Language:

english

File:

PDF, 596 KB

english, 1974

19

VOLATILE COMPONENTS OF ROASTED COCOA: BASIC FRACTION

O. G. VITZTHUM, P. WERKHOFF, P. HUBERT

Journal:

Journal of Food Science

Year:

1975

Language:

english

File:

PDF, 654 KB

english, 1975

20

Analytik von Carbonsäurehydroxytryptamiden in Kaffee

P. Hubert, H. Kwasny, P. Werkhoff, U. Turner

Journal:

Analytical and Bioanalytical Chemistry

Year:

1977

File:

PDF, 769 KB

1977

21

Gaschromatographische Bestimmung von Diethylenglykol in Wein, Traubensaft und Traubensaftkonzentraten

Peter Werkhoff, Wilfried Bretschneider

Journal:

European Food Research and Technology

Year:

1986

File:

PDF, 399 KB

1986

22

Neu entdeckte Stickstoffheteroeyelen im Kaffee-Aroma

Otto Georg Vitzthum, Peter Werkhoff

Journal:

European Food Research and Technology

Year:

1974

Language:

german

File:

PDF, 495 KB

german, 1974

23

Chirospecific analysis in essential oil, fragrance and flavor research

Peter Werkhoff, Stefan Brennecke, Wilfried Bretschneider, Matthias Güntert, Rudolf Hopp, Horst Surburg

Journal:

European Food Research and Technology

Year:

1993

Language:

english

File:

PDF, 2.06 MB

english, 1993

24

Analysis of the chiral aroma compound filbertone by inclusion gas chromatography

Volker Schurig, Johann Jauch, Dieter Schmalzing, Martin Jung, Wilfried Bretschneider, Rudolf Hopp, Peter Werkhoff

Journal:

European Food Research and Technology

Year:

1990

Language:

english

File:

PDF, 320 KB

english, 1990

25

Chirospecific analysis in flavor and essential oil chemistry Part A. Filbertone — the character impact compound of hazel-nuts

Matthias Güntert, Roland Emberger, Rudolf Hopp, Manfred Köpsel, Wilhelm Silberzahn, Peter Werkhoff

Journal:

European Food Research and Technology

Year:

1991

Language:

english

File:

PDF, 315 KB

english, 1991

26

Chirospecific analysis in flavor and essential oil chemistry Part B. Direct enantiomer resolution of frans-α-ionone and trans-α-damascone by inclusion gas chromatography

Peter Werkhoff, Wilfried Bretschneider, Matthias Güntert, Rudolf Hopp, Horst Surburg

Journal:

European Food Research and Technology

Year:

1991

Language:

english

File:

PDF, 475 KB

english, 1991

27

Identification of some Ester Compounds in Bourbon Vanilla Beans

P. Werkhoff, M. Güntert

Journal:

Lebensmittel-Wissenschaft und-Technologie / Food Science and Technology

Year:

1997

Language:

english

File:

PDF, 58 KB

english, 1997

28

Isolation and characterization of volatile sulfur-containing meat flavor components in model systems

Werkhoff, Peter, Bruening, Juergen, Emberger, Roland, Guentert, Matthias, Koepsel, Manfred, Kuhn, Walter, Surburg, Horst

Journal:

Journal of Agricultural and Food Chemistry

Year:

1990

Language:

english

File:

PDF, 1.56 MB

english, 1990

29

Cycloalkapyrazines in coffee aroma

Vitzthum, Otto G., Werkhoff, Peter.

Journal:

Journal of Agricultural and Food Chemistry

Year:

1975

Language:

english

File:

PDF, 678 KB

english, 1975

30

Identification and formation of some selected sulfur-containing flavor compounds in various meat model systems

Guentert, Matthias, Bruening, Juergen, Emberger, Roland, Koepsel, Manfred, Kuhn, Walter, Thielmann, Thomas, Werkhoff, Peter

Journal:

Journal of Agricultural and Food Chemistry

Year:

1990

Language:

english

File:

PDF, 1.36 MB

english, 1990

31

Application of the Base-catalyzed Halogen Dance (BCHD) Reaction to the Synthesis of Naturally Occurring Dimethylthienyl Disulfides

Bertram, Heinz-Jürgen, Güntert, Matthias, Hopp, Rudolf, Sommer, Horst, Werkhoff, Peter

Journal:

Natural Product Letters

Year:

1993

Language:

english

File:

PDF, 410 KB

english, 1993

32

Dihydro‐1,3,5‐dithiazines: Unusual flavor compounds with remarkable organoleptic properties

Werkhoff, P., Guntert, M., Hopp, R.

Journal:

Food Reviews International

Year:

1992

Language:

english

File:

PDF, 1.95 MB

english, 1992

33

ChemInform Abstract: Progress in Analysis of Odorous Substances. Part 10. Techniques for Structure Analysis of Aromas and Flavors

WERKHOFF, P., BRETSCHNEIDER, W., HERRMANN, H. J., SCHREIBER, K.

Journal:

Year:

1990

File:

PDF, 96 KB

1990

34

ChemInform Abstract: Isolation, Synthesis, and Absolute Configuration of Filberton - The Active Principle of the Hazel Nut Aroma.

JAUCH, J., SCHMALZING, D., SCHURIG, V., EMBERGER, R., HOPP, R., KOEPSEL, M., SILBERZAHN, W., WERKHOFF, P.

Journal:

Year:

1989

File:

PDF, 186 KB

1989

35

ChemInform Abstract: Synthesis of 1H-Pyrrolo(1,2-c)(1,3)thiazine: A New Sulfur Nitrogen Heterocycle.

THIELMANN, T., GUENTERT, M., KOEPSEL, M., WERKHOFF, P.

Journal:

Year:

1990

File:

PDF, 100 KB

1990

36

ChemInform Abstract: Progress in Analysis of Odorous Substances. Part 11. Techniques for Structure Determination of Odorous and Flavor Compounds

WERKHOFF, P., BRETSCHNEIDER, W., HERRMANN, H. J., SCHREIBER, K.

Journal:

Year:

1990

File:

PDF, 92 KB

1990

37

ChemInform Abstract: REVERSIBLE UMLAGERUNGEN BEI NITROOLEFINEN 2. MITT. 1,3-UMLAGERUNG VON NITROMETHYLBUTENEN

HESSE, GERHARD, WERKHOFF, PETER

Journal:

Chemischer Informationsdienst. Organische Chemie

Year:

1970

File:

PDF, 140 KB

1970

38

ChemInform Abstract: REVERSIBLE UMLAGERUNGEN BEI NITROOLEFINEN 2. MITT. 1,3-UMLAGERUNG VON NITROMETHYLBUTENEN

HESSE, GERHARD, WERKHOFF, PETER

Journal:

Chemischer Informationsdienst. Organische Chemie

Year:

1970

File:

PDF, 140 KB

1970