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PhD position - Hydrolysate, Peptide, Metal Complexation, Bacteria siderophore, Hydrogel
Université de Lorraine

PhD position - Hydrolysate, Peptide, Metal Complexation, Bacteria siderophore, Hydrogel

Fecha límite no especificada
Guardar trabajo

Subject details

The PLASTER project aims to biosynthesize metal-complexing peptides-based hydrogels for preventing and treating oxidation and will be a fruitful collaboration between Université de Lorraine and University of Ottawa, Canada in a context of a structured collaboration. To reach this goal, we will first produce hydrogels matrix, based on protein hydrolysate containing metal-complexing peptides, whose gelation process is induced by metal complexation. Then, this hydrogel will be enriched with Cu2+-complexing metallophores produced and extracted from bacteria. Finally, the biofunction and bioactivity of this resulting biomaterials will be evaluated in terms of metal ion complexation and antioxidant properties on in vivo model (C. elegans).

Candidate profile

The successful candidate will ideally have trained as a biochemist/biotechnology engineer, with an interest in chemistry, particularly the study of peptide-metal interactions (coordination chemistry). With an experimental profile, the successful candidate will carry out various physico-chemical analyses. He/she will have good writing and communication skills in English. He/she should also be able to open up to the field of microbiology.

Application deadline: 20th of August 2024

Following the evaluation of the applications, the selected candidates will be auditioned (conditions of the audition given later).
Application file: the application file must include the following elements
- M1 and M2 grades
- CV
- Letter of motivation
- Letter(s) of recommendation from teachers and scientific supervisors
- Activity report on the research internship carried out in M2 described in English with a maximum of 2 pages, in order to demonstrate your ability to communicate on the progress of your research work.

The whole file should be sent to Laetitia Canabady-Rochelle, Patrick Billard and Chibuike Udenigwe.
[email protected]
[email protected]
[email protected]

Référence biblio

Références bibliographiques

Acquah et al. (2018). Role of hydrophobicity in food peptide functionality and bioactivity. Journal of Food Bioactives, 4, 88–98, https://doi.org/10.31665/JFB.2018.4164

Abioye et al. (2022). Self-assembly and hydrogelation properties of peptides derived from peptic cleavage of aggregation-prone regions of ovalbumin. Gels, 8(10), 641, https://doi.org/10.3390/gels8100641

Becker et al. Interactions Mediated by a Public Good Transiently Increase Cooperativity in Growing Pseudomonas putida Metapopulations. Sci. Rep. 2018, 8, 4093. https://doi.org/10.1038/s41598-018-22306-9

Canabady-Rochelle et al. Determination of reducing power and chelating ability of antioxidant peptides: Revisited Methods. Food Chemistry, 2015, 183, 129-135. http://dx.doi.org/10.1016/j.foodchem.2015.02.147

Ahmed and Holmström. Siderophores in environmental research: roles and applications. Microb Biotechnol. 2014 May;7(3):196-208. https://doi.org/10.1111/1751-7915.12117

Andrejević et al. Metal complexes with valuable biomolecules produced by Pseudomonas aeruginosa: a review of the coordination properties of pyocyanin, pyochelin and pyoverdines. Dalton Trans. 2023 Apr 4;52(14):4276-4289. doi: 10.1039/d3dt00287j

Article https://www.reussir.fr/lait/sanders-contribue-au-developpement-de-la-proteine-vegetal-française

Canabady-Rochelle et al., SPR Screening of Metal-chelating Peptides for their Antioxidant Properties. Food Chemistry, 2018, 239, 478–485. http://dx.doi.org/10.1016/j.foodchem.2017.06.116

Chalamaiah et al., Regulatory requirements of bioactive peptides (protein hydrolysates) from food proteins. Journal of Functional Foods, 2019, 58, 123–129. https://doi.org/10.1016/j.jff.2019.04.050

El Hajj et al., Application in Nutrition: Mineral-Binding. Elsevier Book chapter 19 in Wu, J. and Toldra, F. Book tittle: Biologically Active Peptides. From Basic Science to Applications for Human Health. 1st Edition -June 17, 2021. eBook ISBN: 9780128214381.

El Hajj et al., Metal-chelating activity of soy and pea protein hydrolysates obtained after different enzymatic treatments from protein isolate. Food Chemistry, 2022, 405(2023) 134788. https://doi.org/10.1016/j.foodchem.2022.134788

El-Hajj et al., Electrically switchable nanolever technology for the screening of metal-chelating peptides in hydrolysates. Journal of Agricultural and Food Chemistry, 2021, 69, 8819–8827. https://doi.org/10.1021/acs.jafc.1c02199

Hider and Kong. Chemistry and biology of siderophores. Natural Product Reports. 2010 May;27(5):637-657. https://doi.org/10.1039/b906679a

Irankunda et al., Evaluation of primary and secondary oxidation products in fish oil-in-water emulsions: Effect of metal-complexing peptides and protein hydrolysates. Food Chemistry. 439 (2024) 138042. DOI: 10.1016/j.foodchem.2023.138042

Irankunda et al., Metal-chelating peptides separation using immobilized metal ion affinity chromatography: experimental methodology and simulation. Separations, 2022, 9, 370. https://doi.org/10.3390/separations9110370

Liu et al., Safety considerations on food protein-derived bioactive peptides. Trends in Food Science and Technology, 2020, 96, 199–207. https://doi.org/10.1016/j.tifs.2019.12.022

Megías et al., Production of copper-chelating peptides after hydrolysis of sunflower proteins with pepsin and pancreatin. LWT - Food Science and Technology, 2008, 41(10), 1973–1977. https://doi.org/10.1016/j.lwt.2007.11.010

Muhr et al., Chromatographic separation simulation of metal-chelating peptides from surface plasmon resonance. Journal of Separation Sciences, 2020, 43, 2031–2041. http://doi.wiley.com/10.1002/jssc.201900882

Nikel and de Lorenzo. Pseudomonas putida as a functional chassis for industrial biocatalysis: From native biochemistry to trans-metabolism. Metab Eng. 2018 Nov;50:142-155. Epub 2018 May 16. PMID: 29758287. https://doi.org/10.1016/j.ymben.2018.05.005

Paris et al., Metabolomic approach based on LC-HRMS for the fast screening of iron-(II)-chelating peptides in protein hydrolysates. Analytical and Bioanalytical Chemistry, 2021, 413, 315–329. https://rdcu.be/ccYI4

Parrello et al. (2016) Siderophore-Mediated Iron Dissolution from Nontronites Is Controlled by Mineral Cristallochemistry. Front Microbiol 7, 423. DOI: 10.3389/fmicb.2016.00423. hal-02389256v1

Puja et al. Engineering Siderophore Biosynthesis and Regulation Pathways to Increase Diversity and Availability. Biomolecules 2023, 13, 959. https://doi.org/10.3390/biom13060959

Pugliese et al. Nanostructure, Self-Assembly, Mechanical Properties, and Antioxidant Activity of a Lupin-Derived Peptide Hydrogel. Biomedicines 2021, 9 (3), 294. https://doi.org/10.3390/biomedicines9030294.

Saha et al. Microbial siderophores and their potential applications: a review. Environ Sci Pollut Res 23, 3984–3999 (2016). https://doi.org/10.1007/s11356-015-4294-0

Soares EV. Perspective on the biotechnological production of bacterial siderophores and their use. Appl Microbiol Biotechnol. 2022 Jun;106(11):3985-4004. doi: 10.1007/s00253-022-11995-y

Song et al. (2019). Protective role of citric acid against oxidative stress induced by heavy metals in Caenorhabditis elegans. Environmental Science and Pollution Research, 26, 36820-36831. https://doi.org/10.1007/s11356-019-06853-w

Wang et al., Separation and identification of zinc-chelating peptides from sesame protein hydrolysate using IMAC-Zn2+ and LC-MS/MS. Food Chemistry, 2012, 134(2), 1231–1238. https://doi.org/10.1016/j.foodchem.2012.02.204

Wehrmann et al. (2017) Functional Role of Lanthanides in Enzymatic Activity and Transcriptional Regulation of Pyrroloquinoline Quinone-Dependent Alcohol Dehydrogenases in Pseudomonas putida KT2440. mBio 8:e00570-17. doi: 10.1128/mBio.00570-17. hal-03210468v1

Wehrmann et al. (2019) Rare Earth Element (REE)-Dependent Growth of Pseudomonas putida KT2440 Relies on the ABC-Transporter PedA1A2BC and Is Influenced by Iron Availability. Front Microbiol. 10:2494. doi: 10.3389/fmicb.2019.02494.

DESCRIPCIÓN DEL PUESTO

Título
PhD position - Hydrolysate, Peptide, Metal Complexation, Bacteria siderophore, Hydrogel
Ubicación
34 Cours Léopold Nancy, Francia
Publicado
2025-05-27
Fecha límite de aplicación
Fecha límite no especificada
Tipo de trabajo
Guardar trabajo

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