AD HOC Workshop "Detection of thermally treated olive oil"

The German journal “Feinschmecker” published results of an investigation of 8 olive oils available on the German market. All cheaper oils were found to have been desodorised. The detection of this unlegal treatment was made by two different methods (Cold-Index and Diglyceride-isomerisation).  The alarming results have caused a sudden raise of interest in the analytical detection. In consequence, DGF has organised this ad-hoc workshop on very short notice to allow delegates to improve their knowledge in this special area.

The workshop will take place at Chemisches Untersuchungsamt Hagen, Pappelstr. 1, D-58099 Hagen.
The number of participants is limited to 30.

Friday, 27 May 2005

8:45 Registration
09:00 Welcome and Introduction
09:15 Olive Oil Market and Consumer Behaviour in Germany
09:45 Structural Alterations of Olive Oil during Steam-washing or other Refining Steps
10:15 Theoretical and Practical Aspects of the Determination of Pyropheophytins and Isomeric Diacylglycerides
10:45 Coffee Break
11:15 Analytical Possibilities to check the Authenticity and Origin of Olive Oils
12:00 Discussion of the Applicability on Non-official Methods to examine Olive Oil
13:00 Lunch
14:00 Practical Demonstrations
14:45 Final Discussion
15:30 End


Dr. Christian Gertz, Chemisches Untersuchungsamt Hagen
Lothar Boers, Dr. Wiertz - Dipl.-Chem. Eggert - Dr. Jörissen GmbH, Hamburg

The venue


By car:

Leave Autobahn A1 at Hagen-Nord and drive 2,4 km in direction Hagen-Mitte. Turn left into Pappelstrasse. Parking lot after 100m on the left side.
Alternatively, change from Autobahn A45 to A46 (direction Hagen) at highway cross Hagen. Leave A 46 at exit Feithstraße (Hagen Boele). Turn right, 2 km to an ARAL gas station, turn right into Pappelstraße.
Parking lot after 100m on the left side

By train:

From Hagen main station take buses # 512 (Bathey), 524 (Gosmann) or SB 72 (Kabel) to busstop Kapellenstraße.


Registration fee is 250 Euro. Registrations are handled on a first-come-first serve basis. The number of participants is limited to 30. To register, please make use of the online registration


Please make your own arrangements. A list of hotels can be found at


Recommended: Bentheimer Hof and Arcadeon


Deutsche Gesellschaft für Fettwissenschaft (DGF)
Postfach 90 04 40, 60444 Frankfurt/Main
Telefon 069 7917-533, Fax 069 7917-564
E-Mail: amoneit@dgfett.de 

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