Evidence map›Paper›PMID 39899145›Full record

ArticleAntonie van Leeuwenhoek2025

Amphora coffeiformis extracellular polymeric substances and their potential applications in lead removal.

Jihen Elleuch, Marwa Drira, Imtinen Ghribi, Farah Hadjkacem, Guillaume Pierre, Christel Causserand, Hamadi Khemakhem, Philippe Michaud, Imen Fendri, Slim Abdelkafi

Abstract read
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In one paragraph

Article in Antonie van Leeuwenhoek, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

10 authors.

Jihen ElleuchLaboratoire de Génie Enzymatique et Microbiologie, Equipe Biotechnologie des Algues, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, Sfax, Tunisia.
Marwa DriraLaboratoire de Protection et Amélioration des Plantes, Centre de Biotechnologie de Sfax, Université de Sfax, B.P. 1177, 3018, Sfax, Tunisia.
Imtinen GhribiLaboratoire de Biotechnologies Végétales Appliquées à l'Amélioration des Cultures, Faculté des Sciences de Sfax, Université de Sfax, Sfax, Tunisia.
Farah HadjkacemLaboratoire de Génie Enzymatique et Microbiologie, Equipe Biotechnologie des Algues, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, Sfax, Tunisia.
Guillaume PierreClermont Auvergne INP, CNRS, Institut Pascal, Université Clermont Auvergne, F-63000, Clermont-Ferrand, France.
Christel CausserandLaboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France.
Hamadi KhemakhemLaboratory of Multifunctional Materials and Applications (LaMMA), (LR16ES18), Faculty of Sciences of Sfax, University of Sfax, B.P. 1171, 3000, Sfax, Tunisia.
Philippe MichaudClermont Auvergne INP, CNRS, Institut Pascal, Université Clermont Auvergne, F-63000, Clermont-Ferrand, France.
Imen FendriLaboratoire de Biotechnologies Végétales Appliquées à l'Amélioration des Cultures, Faculté des Sciences de Sfax, Université de Sfax, Sfax, Tunisia.
Slim AbdelkafiLaboratoire de Génie Enzymatique et Microbiologie, Equipe Biotechnologie des Algues, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, Sfax, Tunisia. slim.abdelkafi@enis.tn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microorganisms producing extracellular polymeric substances (EPS) are of great potential in numerous environmental applications. The present study explores the production and properties of extracellular polymeric substances (EPS) from Amphora coffeiformis diatom strain and their potential applications in environmental remediation. EPS were composed of a complex mixture of polysaccharides, proteins, humic substances and nucleic acids, with polyanionic characteristics as revealed by FTIR, Raman and zeta potential analyses. EPS showed high flocculation efficiency against kaolin clay at low dosages (5 mg/L) through a charge neutralization mechanism involving both polysaccharides and proteins. EPS also exhibited strong emulsification activity for various nonpolar substrates, mainly olive oil, corn oil, soybean oil, essence and diesel, with emulsification indexes above 80%. The emulsions were stable for 72 h under different NaCl concentrations (1-10% w/v). Moreover, EPS demonstrated remarkable adsorption capacity for lead, reaching a maximum of 1699.33 ± 89.61 mg/g under optimized conditions using Box-Behnken design. The adsorption mechanism involved multiple functional groups such as hydroxyl, carbonyl, carboxyl, phosphoric and sulfhydryl. Therefore, EPS from A. coffeiformis are a promising candidate for restoring environments contaminated by heavy metals.

Indexed as

DiatomsExtracellular Polymeric Substance MatrixLeadAdsorptionBiodegradation, EnvironmentalFlocculationLeadAmphora coffeiformisEmulsification indexEnvironmental applicationsExtracellular polymeric substances (EPS)Flocculation activityLead removal

Identifiers

PMID39899145

What OpenQuestion holds

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Registered trials

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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.