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MALDI mass spectrometry imaging : from constituents in fresh food to ingredients, contaminants and additives in processed food

Title data

Kokesch-Himmelreich, Julia ; Wittek, Oliver ; Race, Alan M. ; Rakete, Sophie ; Schlicht, Claus ; Busch, Ulrich ; Römpp, Andreas:
MALDI mass spectrometry imaging : from constituents in fresh food to ingredients, contaminants and additives in processed food.
In: Food Chemistry. Vol. 385 (2022) . - No. 132529.
ISSN 0308-8146
DOI: https://doi.org/10.1016/j.foodchem.2022.132529

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Project information

Project financing: Deutsche Forschungsgemeinschaft
TechnologieAllianzOberfranken (TAO)

Abstract in another language

Mass Spectrometry imaging (MS imaging) provides spatial information for a wide range of compound classes in different sample matrices. We used MS imaging to investigate the distribution of components in fresh and processed food, including meat, dairy and bakery products. The MS imaging workflow was optimized to cater to the specific properties and challenges of the individual samples. We successfully detected highly nonpolar and polar constituents such as beta-carotene and anthocyanins, respectively. For the first time, the distributions of a contaminant and a food additive were visualized in processed food. We detected acrylamide in German gingerbread and investigated the penetration of the preservative natamycin into cheese. For this purpose, a new data analysis tool was developed to study the penetration of analytes from uneven surfaces. Our results show that MS imaging has great potential in food analysis to provide relevant information about components’ distributions, particularly those underlying official regulations.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: MALDI mass spectrometry imaging; processed food; penetration analysis tool; natamycin; acrylamide; beta-carotene; anthocyanins
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Bioanalytical Sciences and Food Analytics > Chair Bioanalytical Sciences and Food Analytics - Univ.-Prof. Dr. Andreas Römpp
Graduate Schools > Bayreuth Graduate School of Mathematical and Natural Sciences (BayNAT) > Molecular Biosciences
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Bioanalytical Sciences and Food Analytics
Graduate Schools
Graduate Schools > Bayreuth Graduate School of Mathematical and Natural Sciences (BayNAT)
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 540 Chemistry
500 Science > 570 Life sciences, biology
Date Deposited: 01 Mar 2022 09:49
Last Modified: 31 Mar 2022 12:48
URI: https://eref.uni-bayreuth.de/id/eprint/68839

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