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Identification of microorganisms by FTIR spectroscopy: perspectives and limitations of the method

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Abstract

Fourier transform infrared (FTIR) spectroscopy was introduced in 1991 as a technique to identify and classify microbes. Since then, it has gained growing interest and has undergone a remarkable evolution. Highly sophisticated spectrometers have been developed, enabling a high sample throughput. Today, the generation of high-quality data in a short time and the application of the technique for rapid and reliable identification of microbes to the species level are well documented. What makes FTIR spectroscopy even more attractive is the fact that spectral information can also be exploited for strain typing purposes, which is particularly important for epidemiological analyses and some technological applications. Accordingly, in recent years, FTIR spectroscopy has been increasingly used for typing and classifying microorganisms below the species level. The intention of this review is to give an overview over current knowledge and strategies of using FTIR spectroscopy for species identification and to describe different approaches for strain typing.

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Acknowledgments

The authors would like to thank Evi Lang Halter for providing spectra of Listeria monocytogenes.

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  1. Abteilung Mikrobiologie, Zentralinstitut für Ernährungs- und Lebensmittelforschung (ZIEL), Technische Universität München, Weihenstephaner Berg 3, D-85350, Freising, Germany

    Mareike Wenning & Siegfried Scherer

  2. Lehrstuhl für Mikrobielle Ökologie, Department of Biosciences, Technische Universität München, D-85350, Freising, Germany

    Siegfried Scherer

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  1. Mareike Wenning
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Correspondence to Mareike Wenning.

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Wenning, M., Scherer, S. Identification of microorganisms by FTIR spectroscopy: perspectives and limitations of the method. Appl Microbiol Biotechnol 97, 7111–7120 (2013). https://doi.org/10.1007/s00253-013-5087-3

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