To strengthen our teams “Chemical Analysis” and “Advanced Technologies” we are looking for a Student (m/w/x) for completion of a
Master Thesis
interested in working on: „Unravelling the chemistry behind changes in milk flavor after Pulsed Electric Fields (PEF) treatment"

PEF is already industrially well-established novel food processing technology, mainly used for softening of fruits/vegetable tissues (easier handling) and for mild-temperature liquid food preservation.

Currently, the application of PEF technology is limited for the food products such as milk and beer, where development of the unfavourable flavours was reported after PEF treatment. It is assumed that the appearance of the metallic taste is most probably caused by metal migration from electrodes. In this study different electrode materials will be tested and their influence on sensory and flavour properties of milk will be evaluated. Influence of different PEF processing parameters on electrode material release and flavour changes would additionally be examined.

Aim of the students master thesis is revealing the changes in milk flavor profile that cause development of undesirable (metallic) flavor after PEF treatment.

Areas of responsibility
  • Literature research
  • Planning of the experimental set-up
  • Setting up method for detection and quantification of milk volatiles via GC-MS
  • ICP-OES analysis of migrated metallic particles in milk
  • Interpretation of the results
Your profile
  • Studies in the field of food chemistry or in the field of instrumental analytics
  • Prior experience in analytical methods such as GC-MS and ICP-OES are considered advantageous
  • Good communication skills, teamwork and motivation to work on this topic
  • Good computer literacy
  • Good spoken and written English skills are desirable
Are you interested?

Then we look forward to receiving your CV, contact details and the earliest possible starting date, preferably by email.

DIL Deutsches Institut für Lebensmitteltechnik e. V.
Prof.-von-Klitzing-Str. 7 · D - 49610 Quakenbrück
Phone: +49 (0)54 31.183 - 0
Fax: +49 (0)54 31.183 - 114