Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2018 Dec 19;8:17971. doi: 10.1038/s41598-018-36196-4

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2018

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/.

PMC Copyright notice

Molecular network (MN) generated using molecular features from the rumen fluid of a non-lactating dairy cow extracted using liquid-liquid extraction (LLE); solid-phase extraction (SPE); original, buffered and acid-base QuEChERS and analyzed using ultra-high performance liquid chromatography coupled to a high resolution mass spectrometer in tandem. Ellipse shaped nodes with gray border indicate putative assignments and octagon nodes with blue border indicate hits with Global Natural Products Social (GNPS). Purple, gray, red, yellow and greed nodes represent molecular features extracted exclusively with LLE, SPE, original, buffered and acid-base QuEChERs, respectively. Blue nodes represent molecular features extracted by more than one extraction method. m/z of mass shift between the nodes are displayed over the edges. (A) Octagon nodes with blue border indicate spectral match of the GNPS with 12,13-EpOME ([M+H]⁺; m/z 297.2430) and 12,13-DiHOME ([M+H]⁺; m/z 315.2534). (B) Octagon nodes with blue border indicate spectral match of the GNPS with azelaic acid ([M+H]⁺; m/z 189.112 and [M-H2O+H]⁺; m/z 171.101), decanedioic acid ([M+H]⁺; m/z 203.127) and dodecanedioic acid ([M+H]⁺; m/z 231.159); ellipse nodes with gray border indicate putative assignments to undecanedioic acid ([M+H]⁺; m/z 217.143) and suberic acid ([M+H]⁺; m/z 175.096). (C) Octagon nodes with blue border indicate spectral match of the GNPS with phenylalanine ([M+H]⁺; m/z 166.086), 3-indoleacetic acid ([M+H]⁺; m/z 176.071) and hydrocinnamic acid ([M+H]⁺; m/z 151.075). (D) Octagon node with blue border indicate spectral match of the GNPS with monensin ([M +Na]⁺; m/z 693.415) and ellipse nodes indicate its analogues monensin B ([M+Na]⁺; m/z 679.402) extracted exclusively on LLE, and monensin methyl ester ([M+Na]⁺; m/z 707.433) extracted exclusively on SPE.