Evidence map›Paper›PMID 26065390›Full record

ArticleJournal of industrial microbiology & biotechnology2015

A novel high-throughput and quantitative method based on visible color shifts for screening Bacillus subtilis THY-15 for surfactin production.

Huan Yang, Huimin Yu, Zhongyao Shen

Abstract read
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In one paragraph

Article in Journal of industrial microbiology & biotechnology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. The Surfactin-Like Lipopeptides FromFrontiers in bioengineering and biotechnology · 2021
    Pooled it
  2. Article
  3. Review
  4. Two EngineeredBiology · 2026
    Article
  5. Optimizing surfactin yield inFrontiers in microbiology · 2025
    Article
  6. Optimisation of surfactin yield inComputational and structural biotechnology journal · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Plants (Basel, Switzerland) · 2023
    Article
  12. Article
  13. Screening Strategies for Biosurfactant Discovery.Advances in biochemical engineering/biotechnology · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Review
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

3 authors.

Huan YangKey Laboratory for Industrial Biocatalysis of the Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
Huimin Yu
Zhongyao Shen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A novel chromatic visible screening method using bromothymol blue (BTB) as a color indicator and cetylpyridinium chloride (CPC) as a mediator was constructed to obtain the high titer surfactin-producing strains. The reliability and quantification accuracy of color shift were also confirmed. Regular chromatic responses from faint yellow-green to dark green and bright blue reflected the different ranges of surfactin concentrations. Moreover, the quantitative accuracy of surfactin quantification in the range of 100-500 mg/L was verified by reverse-phase high-performance liquid chromatography (RP-HPLC) using different fermentation supernatant samples. Using this CPC-BTB method, a superior surfactin producer, Bacillus subtilis THY-15, was successfully screened. The producer's surfactin (Srf) titer reached 1240 mg/L. RP-HPLC analysis of THY-15 revealed four surfactin isoforms. As identified by amino acid analysis and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis, the isoforms of surfactin in fraction 1, 2 and 4 had the same circular peptide sequence of Glu-Leu-Leu-Val-Asp-Leu-Leu but different iso-C13, C14 and C15 fatty acid chains, but the isoform in fraction 3 possessed a special peptide sequence of Glu-Val-Leu-Leu-Asp-Leu-Val.

Indexed as

Amino AcidsBacillus subtilisChromatography, High Pressure LiquidFatty AcidsFermentationHigh-Throughput Screening AssaysHydrogen-Ion ConcentrationLipopeptidesPeptides, CyclicReproducibility of ResultsSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationTandem Mass SpectrometryAmino AcidsFatty AcidsLipopeptidesPeptides, Cyclic

Identifiers

What OpenQuestion holds

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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.