STAR Protocols (Jun 2023)

Protocol for bacterial typing using Fourier transform infrared spectroscopy

  • Huayan Yang,
  • Haimei Shi,
  • Bin Feng,
  • Li Wang,
  • Liangqiang Chen,
  • Avelino Alvarez-Ordóñez,
  • Li Zhang,
  • Hao Shen,
  • Jianhua Zhu,
  • Shouning Yang,
  • Chuanfan Ding,
  • Miguel Prietod,
  • Fan Yang,
  • Shaoning Yu

Journal volume & issue
Vol. 4, no. 2
p. 102223

Abstract

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Summary: The Fourier transform infrared (FT-IR) signals obtained from bacterial samples are specific and reproducible, making FT-IR an efficient tool for bacterial typing at a subspecies level. However, the typing accuracy could be affected by many factors, including sample preparation and spectral acquisition. Here, we present a unified protocol for bacterial typing based on FT-IR spectroscopy. We describe sample preparation from bacterial culture and FT-IR spectrum collection. We then detail FT-IR spectrum preprocessing and multivariate analysis of spectral data for bacterial typing. : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.

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