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. 2020 May 26;10:8679. doi: 10.1038/s41598-020-64774-y

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Analysis of the volatile metabolite geosmin produced by Microcoleus asticus sp. nov. using SPME GC-MS. Selected ion monitoring chromatogram in gas chromatography-mass spectrometry (GC/MS-SIM) of the ionic current of the selected geosmin ions (m/z = 111; 112; 125 and 126). (a) Geosmin detection in the Microcoleus asticus sp. nov. culture volatile extract; (b) Control analysis: 1- analytical geosmin standard (20 ng.ml⁻¹), 2- no compound control, 3 - Z8 culture media.