High-pressure homogenizers
Emulsification processes – Techniques and equipment

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J2153 V2 Article

High-pressure homogenizers


Emulsification processes – Techniques and equipment

Authors : Martine POUX, Jean-Paul CANSELIER

Publication date: April 10, 2023 | Lire en français

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4. High-pressure homogenizers

  • Principle and mechanism

    Based on the piston pump principle, this technique involves forcing a coarse pre-emulsion through a small orifice (homogenization nozzle) at high pressure (150 to 200 MPa, or 350 to 400 MPa for ultra-high pressure homogenization). The extreme shear and cavitation (induced by the implosion of gas microbubbles) (see § 2.4 article [J 2 152] ) created by these conditions induce droplet bursting, leading to nano-sized emulsions

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