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. 2019 May 10;36(1):1–10. doi: 10.1007/s12550-019-00360-0

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© The Author(s) 2019

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Chemical structures of ochratoxin A (OTA), its diastereomer 2′R-ochratoxin A (2′R-OTA), its dehalogenated form ochratoxin B (OTB), and its glutathione conjugate (OTB-GSH) and N-acetyl-l-cysteine conjugate (OTB-NAC) as well as the ochratoxin hydroquinone conjugates with GSH (OTHQ-GSH) and NAC (OTHQ-NAC) (GSH or NAC-conjugates of OTA are named OTB-GSH and OTB-NAC as the backbone moiety represents the dehalogenated OTB)