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Potential Development of Sustainable 3D-Printed Meat Analogues: A Review

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  • Karna Ramachandraiah

    (Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Korea)

Abstract

To mitigate the threat of climate change driven by livestock meat production, a multifaceted approach that incorporates dietary changes, innovative product development, advances in technologies, and reductions in food wastes/losses is proposed. The emerging technology of 3D printing (3DP) has been recognized for its unprecedented capacity to fabricate food products with intricate structures and reduced material cost and energy. For sustainable 3DP of meat substitutes, the possible materials discussed are derived from in vitro cell culture, meat byproducts/waste, insects, and plants. These material-based approaches are analyzed from their potential environmental effects, technological viability, and consumer acceptance standpoints. Although skeletal muscles and skin are bioprinted for medical applications, they could be utilized as meat without the additional printing of vascular networks. The impediments to bioprinting of meat are lack of food-safe substrates/materials, cost-effectiveness, and scalability. The sustainability of bioprinting could be enhanced by the utilization of generic/universal components or scaffolds and optimization of cell sourcing and fabrication logistics. Despite the availability of several plants and their byproducts and some start-up ventures attempting to fabricate food products, 3D printing of meat analogues remains a challenge. From various insects, powders, proteins (soluble/insoluble), lipids, and fibers are produced, which—in different combinations and at optimal concentrations—can potentially result in superior meat substitutes. Valuable materials derived from meat byproducts/wastes using low energy methods could reduce waste production and offset some greenhouse gas (GHG) emissions. Apart from printer innovations (speed, precision, and productivity), rational structure of supply chain and optimization of material flow and logistic costs can improve the sustainability of 3D printing. Irrespective of the materials used, perception-related challenges exist for 3D-printed food products. Consumer acceptance could be a significant challenge that could hinder the success of 3D-printed meat analogs.

Suggested Citation

  • Karna Ramachandraiah, 2021. "Potential Development of Sustainable 3D-Printed Meat Analogues: A Review," Sustainability, MDPI, vol. 13(2), pages 1-20, January.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:2:p:938-:d:482389
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    References listed on IDEAS

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    1. Ivica Faletar & Marija Cerjak, 2022. "Perception of Cultured Meat as a Basis for Market Segmentation: Empirical Findings from Croatian Study," Sustainability, MDPI, vol. 14(12), pages 1-16, June.

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