Evidence map›Paper›PMID 33925970›Full record

ArticleMetabolites2021

Influence of Extraction Solvent on Nontargeted Metabolomics Analysis of Enrichment Reactor Cultures Performing Enhanced Biological Phosphorus Removal (EBPR).

Nay Min Min Thaw Saw, Pipob Suwanchaikasem, Rogelio Zuniga-Montanez, Guanglei Qiu, Ezequiel M Marzinelli, Stefan Wuertz, Rohan B H Williams

Open access · goldAbstract read
In one paragraph

Article in Metabolites, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.3field-weighted citation impact, top 52% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 9 citations in OpenAlex.

  1. Untargeted LC-QToF-MS profiling of the soybean (Frontiers in plant science · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Improving the Proteome-Mining ofJournal of fungi (Basel, Switzerland) · 2025
    Article
  6. Plant Metabolomics: The Future of Anticancer Drug Discovery.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  7. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 3 countries.

Nay Min Min Thaw SawSingapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore.ORCID 0000-0002-8180-8129
Pipob SuwanchaikasemSingapore Phenome Centre, Nanyang Technological University, Singapore 636921, Singapore.ORCID 0000-0001-7991-6414
Rogelio Zuniga-MontanezSingapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore.ORCID 0000-0002-2931-1721
Guanglei QiuSingapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore.
Ezequiel M MarzinelliSingapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore.ORCID 0000-0002-3762-3389
Stefan WuertzSingapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore.
Rohan B H WilliamsSingapore Centre for Environmental Life Sciences Engineering, National University of Singapore, Singapore 117456, Singapore.ORCID 0000-0002-1286-5277
Nanyang Technological University · SGNational University of Singapore · SGThe University of Sydney · AU

Funding

National Research Foundation, Republic of Singapore 1102-IRIS-10-02
6 · The paper itself

Abstract

Metabolome profiling is becoming more commonly used in the study of complex microbial communities and microbiomes; however, to date, little information is available concerning appropriate extraction procedures. We studied the influence of different extraction solvent mixtures on untargeted metabolomics analysis of two continuous culture enrichment communities performing enhanced biological phosphate removal (EBPR), with each enrichment targeting distinct populations of polyphosphate-accumulating organisms (PAOs). We employed one non-polar solvent and up to four polar solvents for extracting metabolites from biomass. In one of the reactor microbial communities, we surveyed both intracellular and extracellular metabolites using the same set of solvents. All samples were analysed using ultra-performance liquid chromatography mass spectrometry (UPLC-MS). UPLC-MS data obtained from polar and non-polar solvents were analysed separately and evaluated using extent of repeatability, overall extraction capacity and the extent of differential abundance between physiological states. Despite both reactors demonstrating the same bioprocess phenotype, the most appropriate extraction method was biomass specific, with methanol: water (50:50

Indexed as

activated sludgeenhanced biological phosphorus removalextractionmass spectrometrymicrobial ecologypolyphosphate-accumulating organismsultra-high performance liquid chromatographyuntargeted metabolomics

Identifiers

PMID33925970
PMCPMC8145293
OpenAlexW3158727675

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.