Johansson, Mathias
- Department of Molecular Sciences, Swedish University of Agricultural Sciences
Research article2022Peer reviewedOpen access
Johansson, Mathias; Nilsson, Klara; Knab, Fanny; Langton, Maud
Food 3D printing allows for the production of personalised foods in terms of shape and nutrition. In this study, we examined whether protein-, starch- and fibre-rich fractions extracted from faba beans can be combined to produce fibre- and protein-rich printable food inks for extrusion-based 3D printing. Small amplitude oscillatory shear measurements were used to characterise the inks while compression tests and scanning electron microscopy were used to characterise the freeze-dried samples. We found that rheological parameters such as storage modulus, loss tangent and yield stress were related to ink printability and shape stability. Investigations on the effect of ink composition, infill pattern (honeycomb/grid) and direction of compression on textural and microstructural properties of freeze-dried 3D-printed objects revealed no clear effect of infill pattern, but a strong effect of direction of compression. Microstructure heterogeneity seemed to be correlated with the textural properties of the printed objects.
3D printing; faba bean; starch; protein; fibre; rheology; texture; microstructure; infill pattern
Processes
2022, Volume: 10, number: 3, article number: 466Publisher: MDPI
Food Engineering
DOI: https://doi.org/10.3390/pr10030466
https://res.slu.se/id/publ/116785