PhD position: Reversibility of dispersion and emulsion structure and functionality upon drying / redispersion
Offer DescriptionThis project will be hosted within the EU Horizon Doctoral Network project Edible Soft Matter (ESM). The general objective of this project is to train and develop the employability of a new generation of young researchers, regulators, consultants and project leaders by providing them with a unique expertise in the design, production and quality assessment of innovative plant-based food products.With this specific PhD offer, we want to study the reversibility of plant-based dispersions and emulsions structure and functionality upon drying/redispersion. This will be done by characterizing key parameters’ (drying rate, temperature) impact on the structural reversibility upon drying, rewetting and redispersion, and the mechanisms involved (e.g. coalescence), for a reference plant protein dispersion (e.g. soy) and protein-stabilised emulsion. One critical colloidal aspect of the question of reversibility is the ability of the protein dispersion to form a gel following drying and redispersion in water. The same question arises regarding its ability to stabilize a foam. One of the central research routes, will be to study the influence of the weight fraction of a low molar mass soluble molecule on the structure reversibility and functionality recovery upon drying/redispersion. Basis techniques exist in the division (see further below), but some further technique development will be necessary.Expected results: • Description of key parameters and mechanisms leading to irreversible structural changes in the drying of protein dispersions and emulsions. • Process design rules for keeping protein functionality vs gel formation, and minimising the antifoaming of the redispersed emulsion. • Formulation/process design rules involving the use of small molecules for keeping protein and emulsion functionalities.Relevant literature: a) Morphology development in single drop drying for native and aggregated whey protein dispersions. Coll. Surf. A, 578, 123549 (2020) doi.org/10.1016/j.colsurfa.2019.06.015 b) Using an added liquid to suppress drying defects in hard particle coatings. J. Coll. Int. Sci. 582 B, 1231 (2021), DOI: 10.1016/j.jcis.2020.08.055
More about the ESM project: it is organised in seven work-packages (WP) including four research-based WP and three transversal WP dedicated respectively to Doctoral candidates training (WP5), Communication, dissemination & exploitation of the project results (WP6) and to Project management and coordination (WP7). The research-based WP unravel basic scientific questions to address the essential food-related research objectives: Plan… For more information seeWhere to apply WebsiteRequirementsResearch Field Chemistry Education Level Master Degree or equivalentResearch Field Engineering Education Level Master Degree or equivalentResearch Field Physics Education Level Master Degree or equivalentLanguages ENGLISH Level GoodResearch Field Chemistry Years of Research Experience NoneAdditional InformationBenefits– Full-time PhD position for four years with a competitive salary and additional benefits such as health insurance, access to university sports facilities, etc.- International work environment and possibility to present your work on international conferences- Your research will be embedded in a world-renowned research group consisting of 6 faculty members active in the area of soft matter rheology, technology, and food science- A state-of-the-art experimental infrastructure- A full-time employment for four years, with an intermediate evaluation after one year.- To support you during your PhD and to prepare you for the rest of your career, you will participate in the Arenberg Doctoral School doctoral training program (Doctoral Training – Arenberg Doctoral School (kuleuven.be)).
Type of recruitment: Full-time exclusive employment contract including full social security coverageForeseen start date: 1st March 2025Duration: 48 monthsHours per week: 38 hrsEstimated monthly gross salary: 4000 Eur (first year) to 4400 Eur (4th year). The salary scale applied is 43, from step 0 on.
Louvain, Brabant Flamand
Fri, 08 Nov 2024 02:53:56 GMT
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