Food 3D Printing Lecture Notes

Food 3D Printing

Topics Overview

  • Introduction to (Food) 3D Printing

  • Techniques and Limitations

  • SYMUS Project

  • Research Results

  • Outlook

Introduction to 3D Printing

  • Additive Manufacturing (AM)

    • Definition: The process of joining materials to make parts from 3D model data, usually layer by layer [ISO].

    • Contrasts with subtractive manufacturing and formative methodologies.

    • Campbell and Ivanova (2013) described AM as a disruptive technology with significant implications in:

    • Economic structures

    • Geopolitical dynamics

    • Environmental concerns

    • Intellectual property issues

    • Security challenges.

    • Promotes the concept of the 'prosumer', where consumers design and produce their own goods, intensifying competition against established firms.

Transformation of Industrial Production

  • Reference to Alvin Toffler’s concept of Prosumer (1981) explaining the blurred line between production and consumption.

  • Example: Polymer printers enable home customization of goods.

Global Manufacturing Revolution Timeline

  • Phases:

    • Craft Production (1850)

    • Mass Production (1913)

    • Steady Demand (1955)

    • Mass Customization (1980)

    • Globalization and Regionalization (2000)

    • Personalized Production & Increased Competition (Supply exceeds Demand).

Disruptive Technologies in Biomedical

  • Personalized Bone Repair: Customized PLLA/nHA composites for bone scaffolds through FDM technology, offering tunable biological properties for biomaterials.

  • Bioplotting: Produces biomaterials (e.g. Hyaluronic Acid) by extruding material of specific viscosity.

  • Applications: Allows the creation of various practical biomedical tissues with different shapes.

Disruptive Technologies in Textile/Clothing

  • Coextrusion of Inks: 3D printing used for wearable textiles and sports clothing.

Disruptive Technologies in Food

  • 4D Printing: Further adds stimulus responsiveness in food structures, allowing any deformation (by composition adjustments) based on external stimuli (e.g., moisture content).

  • Flat Packaging Concept: Inspired by IKEA, minimizing shipping costs and promoting home assembly.

  • Personalization: Foods tailored for specific health needs (e.g., Xerostomia, Dysphagia).

Cultured Meat Innovations

  • Memphis Meats: Showcase cultured meat products, including beef meatballs and chicken tenders. Envisioned as part of regulatory advances for cultured meat.

  • Alliances for Innovation: Formation of AMPS (Alliance for Meat, Poultry & Seafood Innovation) and European companies pioneering cultured meat production.

History of 3D Food Printing

  • Key Breakthroughs: A timeline illustrating the evolution of three-dimensional food printing technologies from various authors and researchers (e.g., Feng et al., 2019; Sun et al., 2015).

Overview of Food AM Techniques

  • Extrusion NF-3DP: Room Temperature and Hot Melt Hydrogel forming techniques.

  • Inkjet Printing: Used in confectionery and decoration, employing thermal bubble or piezoelectric principles similar to color printers.

  • Binder Jetting: Involves layering powdered materials with a liquid binder to build 3D structures.

  • Selective Laser Sintering: Another method for food AM involving laser-driven melting technologies.

Complexity of Food and 3D Printing

  • Relevance of fluid dynamics to the 3D printing process: Research on the flow behaviors of Newtonian and non-Newtonian fluids affecting successful food 3D printing.

  • Key parameters affecting printing:

    • Hardness

    • Springiness

    • Plasticity

    • Viscoelasticity

SYMUS Project Overview

  • Research Questions:

    • Scalability and multiscale printing with robotic assistance.

    • Functionality through a reverse engineering approach.

Research on Multiscale Printing Techniques

  • Focus on synchronous multiscale printing, addressing health benefits, new taste perception, and structure-property relationships.

Sensory Properties of 3D-Printed Food

  • Impact of material distribution on sensory perception evaluated through various studies.

  • Assessment methodologies include trained expert panels for overall and hedonic ratings across several attributes (appearance, mouthfeel, taste).

Experimental Findings: Sweetness Perception

  • Sweetness Modulation in Confectionery:

    • Investigated through variable sugar concentrations and structural configurations.

    • First impressions key to sweetness perception.

  • Anisotropic Modulation: Can influence sweetness perception; however, the effectiveness of pulsed stimulation remains to be established.

Inkjet Surface-Structuring Findings

  • Setup for Testing Sweetness Effects: Various prototypes tested for sweetness intensity and perceptions,

    • Results suggest surface structuring significantly influences flavor experience and sweetness perception across profiles.

Take Home Messages from Research

  • Techniques can change sweetness perception and deliver targeted flavor experiences through structural modulation.

  • Innovations in 3D food printing have potential to address dietary concerns including sensory modulation for those with food disorders.

  • New material applications, property modifications, and technology integration could further advance 3D-printed food technology.

Questions?

  • Open floor for queries related to Food 3D Printing.