Addressing authenticity of fish oils by online coupling of GC-IRMS with an organic mass spectrometer

Welcome to Thermo Fisher Scientific’s Powering Productivity in Food and Environmental Testing webinar series!

As fish oils become a popular and precious source of omega-3 fatty acids, the risk of mislabeling and adulteration has risen significantly. The fatty acid profiles of different fish oils do not often allow the discrimination between different sources and geographical origins.

In this study, the compound specific multi-isotope analysis of fatty acids allowed the discrimination of fish oils from different provenance, following risk-based comparisons from market experience. In the light of emerging cases of food fraud, we will present how GC-MS-IRMS advanced technology can address fish oil authenticity and increase lab productivity by assessing isotopic composition as well as qualitative and quantitative sample information simultaneously in a single injection.

Presenter: Dr. David Psomiadis (Head of the Laboratory and Business Development Manager, Imprint Analytics GmbH)

Dr. David Psomiadis works as Head of the Laboratory and Business Development Manager at Imprint Analytics GmbH. He holds a Ph.D. in isotope geochemistry with scientific background in environmental and climate research. Being a member of international research teams, David has published more than 70 contributions in scientific journals and conferences. Since 2013, he has settled in Neutal, Austria, as a member of the grounding team of Imprint Analytics. He holds a regular member position in international committees and working groups (eg. AOAC, CEN) related to food authenticity testing.

As the Head of the Laboratory, he is responsible for supervising and managing all operations related to the laboratory, planning method development to meet customer demands and reporting scientific results and interpretations to clients.

As Business Development Manager, he leads the global food authenticity business development strategy, brand development and business collaborations within global networks and international consortia, as well as he integrates the applied science into the market needs, creating new synergies, tools and solutions.

Presenter: Mario Tuthorn (Senior Product Marketing Specialist, Thermo Fisher Scientific)

After completing his PhD in Isotope Biogeochemistry at the University of Bayreuth, Germany, Mario joined Thermo Fisher Scientific in Bremen in 2016 as an application specialist for the Isotope Ratio Mass Spectrometry portfolio, developing applications and methods for compound specific isotope analysis in a variety of fields by using gas and liquid chromatography. Since 2019 Mario has taken on Product Marketing role for gas isotope ratio MS and organic elemental analyzer instrumentation, focusing on product positioning and marketing activities.