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Chocolate-based Ink Three-dimensional Printing (Ci3DP).

Rahul Karyappa1, Michinao Hashimoto2,3

  • 1Digital Manufacturing and Design (DManD) Centre, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore.

Scientific Reports
|October 4, 2019
PubMed
Summary
This summary is machine-generated.

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Researchers developed a novel 3D printing method for chocolates, termed chocolate-based ink 3D printing (Ci3DP), which uses liquid-phase chocolate inks without requiring temperature control for complex designs.

Area of Science:

  • Food Science and Technology
  • Materials Science
  • Additive Manufacturing

Background:

  • Three-dimensional (3D) printing enables intricate food shaping.
  • Hot-melt extrusion is common for 3D chocolate printing but needs precise temperature control.
  • Existing methods limit the complexity and ease of 3D food printing.

Purpose of the Study:

  • To introduce a new 3D printing method for chocolate-based materials without temperature control.
  • To demonstrate the fabrication of complex 3D chocolate structures using liquid-phase inks.
  • To explore the potential of this technique for diverse chocolate product creation.

Main Methods:

  • Developed chocolate-based inks by mixing chocolate syrup/paste with cocoa powders (5-25 w/w%).
  • Utilized direct ink writing (DIW) 3D printer for liquid-phase printing.

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  • Analyzed ink rheology using the Herschel-Bulkley model to characterize shear-thinning and yield stress.

    • Main Results:

    • Successfully fabricated complex 3D chocolate models using inks with 10-25 w/w% cocoa powder.
    • Achieved viscosities ranging from 10^2 to 10^4 Pa.s, exhibiting shear-thinning and yield stress.
    • Demonstrated multi-material printing with different chocolate inks, including semi-solid enclosures and liquid fillings.

    Conclusions:

    • Chocolate-based ink 3D printing (Ci3DP) offers a simple, temperature-independent method for creating complex 3D chocolate products.
    • The DIW technique with tailored chocolate inks provides flexibility for innovative food design.
    • Ci3DP holds significant potential for the future of custom chocolate manufacturing and culinary arts.