Correlation Network Analysis for Amino Acid Identification in Soil Samples With the ORIGIN Space-Prototype Instrument

Schwander, Loraine; Ligterink, Niels F.W.; Kipfer, Kristina A.; Lukmanov, Rustam A.; Grimaudo, Valentine; Tulej, Marek; de Koning, Coenraad P.; Keresztes Schmidt, Peter; Gruchola, Salome; Boeren, Nikita J.; Ehrenfreund, Pascale; Wurz, Peter; Riedo, Andreas (2022). Correlation Network Analysis for Amino Acid Identification in Soil Samples With the ORIGIN Space-Prototype Instrument. Frontiers in astronomy and space sciences, 9 Frontiers Media 10.3389/fspas.2022.909193

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The detection of biomolecules on Solar System bodies can help us to understand how life emerged on Earth and how life may be distributed in our Solar System. However, the detection of chemical signatures of life on planets or their moons is challenging. A variety of parameters must be considered, such as a suited landing site location, geological and environmental processes favourable to life, life detection strategies, and the application of appropriate and sensitive instrumentation. In this contribution, recent results obtained using our novel laser desorption mass spectrometer ORganics INformation Gathering Instrument (ORIGIN), an instrument designed for in situ space exploration, are presented. We focus in this paper on the detection and identification of amino acid extracts from a natural permafrost sample, as well as in an analogue mixture of soils and amino acids. The resulting dataset was analysed using a correlation network analysis method. Based on mass spectrometric correlation, amino acid signatures were separated from soil signatures, identifying chemically different molecular components in complex samples. The presented analysis method represents an alternative to the typically applied spectra-by-spectra analysis for the evaluation of mass spectrometric data and, therefore, is of high interest for future application in space exploration missions.

Item Type:

Journal Article (Original Article)


08 Faculty of Science > Physics Institute > NCCR PlanetS
08 Faculty of Science > Physics Institute
08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences

UniBE Contributor:

Schwander, Loraine, Ligterink, Niels Frank Willem, Kipfer, Kristina Anna, Lukmanov, Rustam, Riedo, Valentine, Tulej, Marek, de Koning, Coenraad Pieter, Keresztes Schmidt, Peter, Gruchola, Salome Noemi, Boeren, Nikita Jennifer, Wurz, Peter, Riedo, Andreas


500 Science > 530 Physics
500 Science > 520 Astronomy
600 Technology > 620 Engineering




Frontiers Media




Dora Ursula Zimmerer

Date Deposited:

09 Jun 2022 07:41

Last Modified:

05 Dec 2022 16:20

Publisher DOI:





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