Follow-up Workshop:
Ringtest on the
detection
of thermally treated olive oils and discussion of new criteria
19. September 2005, Hagen,
Germany
On the 27th of May 2005 and on the 19th of September 2005, two
workshops were held on the analysis of olive oils, organized by the
German Society for Fat Science.
Each meeting was attended by 40 participants from Italy, Spain, France,
Belgium and Germany, representing industry, academia, food control and
resellers.
The aim of the two workshops was to discuss the applicability of the
determinations of pyropheophytin A or Cold-Index and the 1,2-1,2
isomerisation of diacylglycerols. The results of a ringtest with both
methods were also discussed. In the final discussion on 19 September
2005 the audience agreed on nine conclusions as a summary of the
presentations and the need for harmonisation of criteria for extra
vergine olive oils.
Statement and Conclusions
Pheophythine
Method
Diglyceride Method
Final
Evaluation TMP, Acidity, DiffReal, Diglycerides (ppm)
Final
Evaluation Determination of Pyropheophytins
Programme of the Workshop held on the
19th of September:
19. September 2005:
07.30 Registration
08.00 Welcome
08.15 Applicability
of analytical methods for olive oil inserted in the Regulations ECC
2568 and 796 to detect alterations and manipulations
09.00
New analytical
procedures proposed by Serani and Gertz for analysing olive
oil and their application in the routine
analysis in 2005
09.30
Discussion and
presentation of the ringtests results:
Method A: Determination of isomer diglycerides
Method B: Determination
of Cold-Index and other
criteria
10.00 Coffee
break
10.30
What is going on
in the German market ?
What are
the main reasons of complaints about olive oils by Food Inspection
Agencies ?
11.00
Report on the
newest developments in analysing olive oil in Italy
11.30 The influence of the storage on extra
virgin oil quality
and some analytical
parameters
12.00
Methods to check
identity and origin of olive oils.
12.30
Lunch
13.00
Discussion on
methods, limits and further proceedings (Boers,
WEJ-Eurofins, Hamburg, Kowalski,
Institut Nehring,Braunschweig)
15.00
Coffee break
15.30 Closing discussion and resolutions.
16.00 End
Chair:
Dr. Christian Gertz, Chemisches
Untersuchungsamt Hagen, Germany
Organizer
Deutsche
Gesellschaft für Fettwissenschaft (DGF)
Postfach
90 04 40, 60444 Frankfurt/Main, Germany
Telefon
+49/69/7917-533, Fax +49/69/7917-564
E-Mail: amoneit@dgfett.de
www.dgfett.de