Description
Layer‑by‑layer extrusion of protein‑rich bioinks to create edible structures that mimic or innovate food textures.
Technical
The process relies on precise thermal extrusion (70–90 °C) to achieve optimal viscosity while limiting protein denaturation, followed by ionic cross‑linking (e.g., Ca²⁺ with alginate) to stabilize the printed geometry. Rheological additives such as carrageenan or xanthan gum further tailor flow properties and mechanical strength.
Science
Primary Reaction
Alginate cross‑linking via Ca²⁺ ion‑mediated gelation (Ca²⁺ + alginate → Ca‑alginate gel)
Sensory Profile
Aroma ()
savorymeatyearthynuttytoastedumami-richslightly marine
Origin & History
Civilization
Japanese and American