European Food Research and Technology

, Volume 212, Issue 4, pp 529–533

Discrimination of chocolates and packaging materials by an electronic nose

  • Hans-Dieter Werlein

DOI: 10.1007/s002170000271

Cite this article as:
Werlein, HD. Eur Food Res Technol (2001) 212: 529. doi:10.1007/s002170000271


 Aroma analyses were carried out with the AromaScan using the multisampler technique and an array of 32 different polymer sensors. Optimum measurement parameters for the olfactory analysis of different kinds of chocolate and packaging materials printed with odorless and total odorless colors were developed. The discrimination of milk and plain chocolate was carried out at a temperature of 60  °C, the same temperature was needed for the discrimination of the four different milk chocolates. The fingerprints of the four milk chocolates were identical but they differed in intensity. The optimum temperature for the discrimination of the packaging materials was 120  °C. The transmission of volatile compounds from the packaging materials into the chocolate is also a subject of this article and can be established at a temperature of 120  °C. A clear discrimination between the chocolates stored with odorless and total odorless colored packaging material is possible.

Keywords Electronic nose Chocolate Packaging material Odor control 

Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • Hans-Dieter Werlein
    • 1
  1. 1.Institut für Lebensmittelwissenschaft, Universität Hannover, Wunstorfer Str. 14, 30453 Hannover, Germany e-mail: Tel.: 0511/762-5592 Fax: 0511/762-4927DE

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