Johannes Marburger

Biopolymer-based microgel particles (MGPs) are increasingly used as food additives due to their ability to modify texture and sensory attributes. Their functional properties are largely determined by characteristics such as particle size, shape, and chemical and physical structure. These properties are closely linked to the process and formulation parameters employed during production.

The aim of this work is to produce biopolymer-based MGPs using a high-pressure homogenization process that incorporates a side stream after the homogenization unit (Simultaneous Homogenization and Mixing – SHM). The study seeks to identify and analyze the relationships between process and formulation parameters and the resulting MGP properties. Particular emphasis is placed on particle shape, with the goal of producing elongated microgel particles of defined size.

The SHM system is currently undergoing modification; therefore, the thesis can start in late September or early October. Investigating relationships and defining the process parameter space will rely primarily on experimental work using the SHM system and various analytical methods. If there is interest, a simulation-based description of the process can also be developed.

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Student of bioengineering, chemical engineering, mechanical process engineering, or a related field with an interest in hydrogels; high level of initiative, motivation, and scientific curiosity.