Evidence map›Paper›PMID 29267499›Full record

ArticleBrazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica2017

Production and characterization of a biosurfactant produced by Streptomyces sp. DPUA 1559 isolated from lichens of the Amazon region.

A P P Santos, M D S Silva, E V L Costa, R D Rufino, V A Santos, C S Ramos, L A Sarubbo, A L F Porto

Open access · goldAbstract read
In one paragraph

Article in Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

16 citing papers in PubMed, 78 citations in OpenAlex.

  1. Lipopeptide iturin CArchives of microbiology · 2025
    Article
  2. Exploring biosurfactant fromFrontiers in bioengineering and biotechnology · 2024
    Article
  3. Article
  4. Review
  5. Biosurfactant Production byMicroorganisms · 2022
    Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Enhanced Production of Biosurfactant fromInternational journal of environmental research and public health · 2020
    Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. 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

8 authors at 2 institutions in 1 country.

A P P SantosDepartamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil.
M D S SilvaDepartamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil.
E V L CostaDepartamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil.
R D RufinoCentro de Ciências e Tecnologia, Universidade Católica de Pernambuco, Recife, PE, Brasil.
V A SantosCentro de Ciências e Tecnologia, Universidade Católica de Pernambuco, Recife, PE, Brasil.
C S RamosDepartamento de Química, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil.
L A SarubboCentro de Ciências e Tecnologia, Universidade Católica de Pernambuco, Recife, PE, Brasil.
A L F PortoDepartamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil.
Universidade Federal Rural de Pernambuco · BRUniversidade Católica de Pernambuco · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Surfactants are amphipathic compounds containing both hydrophilic and hydrophobic groups, capable to lower the surface or interfacial tension. Considering the advantages of the use of biosurfactants produced by microorganisms, the aim of this paper was to develop and characterize a biosurfactant produced by Streptomyces sp. DPUA1559 isolated from lichens of the Amazon region. The microorganism was cultured in a mineral medium containing 1% residual frying soybean oil as the carbon source. The kinetics of biosurfactant production was accompanied by reducing the surface tension of the culture medium from 60 to values around 27.14 mN/m, and by the emulsification index, which showed the efficiency of the biosurfactant as an emulsifier of hydrophobic compounds. The yield of the isolated biosurfactant was 1.74 g/L, in addition to the excellent capability of reducing the surface tension (25.34 mN/m), as observed from the central composite rotational design when the biosurfactant was produced at pH 8.5 at 28°C. The critical micelle concentration of the biosurfactant was determined as 0.01 g/mL. The biosurfactant showed thermal and pH stability regarding the surface tension reduction, and tolerance under high salt concentrations. The isolated biosurfactant showed no toxicity to the micro-crustacean Artemia salina, and to the seeds of lettuce (Lactuca sativa L.) and cabbage (Brassica oleracea L.). The biochemistry characterization of the biosurfactant showed a single protein band, an acid character and a molecular weight around 14.3 kDa, suggesting its glycoproteic nature. The results are promising for the industrial application of this new biosurfactant.

Indexed as

Analysis of VarianceColony Count, MicrobialCulture MediaElectrophoresis, Polyacrylamide GelFermentationHydrogen-Ion ConcentrationLichensReference ValuesSeedsSoybean OilSpectroscopy, Fourier Transform InfraredStreptomycesSurface-Active AgentsSurface TensionTemperatureTime FactorsCulture MediaSoybean OilSurface-Active Agents

Identifiers

PMID29267499
PMCPMC5731328
OpenAlexW2774226629

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.