Device and method for processing food by utilizing high-voltage pulse sensing current

Abstract

The invention discloses a device for processing food by utilizing high-voltage pulse sensing current. The device comprises a direct-current high-voltage pulse current generator, wherein the direct-current high-voltage pulse current generator is connected with a sensing coil, the direct-current high-voltage pulse current generated by the direct-current high-voltage pulse current generator acts on the sensing coil, so that the magnetic induction flux is varied in a pulse form in the sensing coil, the pulse-form variation of the magnetic induction flux generated by the sensing coil acts on a magnetic conductive coil with high magnetic conductivity, and the variation of the magnetic induction flux is formed inside or near the magnetic conductive coil. The device and the method have the beneficial effects that microorganism cell membrane on the surface and inside of to-be-processed food can be permanently broken down to be eliminated by the pulse current in a noncontact manner, so that the weakness of the existing heating sterilizing method that the nutrients and flavor of the food are damaged can be overcome, the problems of the existing high-voltage pulse electric field method that the electrode needs to be contacted with the food can be avoided, and the application range is enlarged from the liquid food to the solid or particle food.

Description

technical field [0001] The invention belongs to the technical field of food processing, and relates to equipment and a processing method for processing food using high-voltage pulse induction current. Background technique [0002] High-voltage (or high-intensity) pulsed electric field (Pulsed Electric Fields, PEF) is a new type of non-thermal food sterilization technology, which uses a higher electric field strength (10-50kV / cm) and a shorter pulse width (0 -100μs) and higher pulse frequency (0-2000Hz) to process liquid and semi-solid food, and can form a continuous sterilization and aseptic filling production line. The bactericidal principle is to directly interact with the microbial cell membrane through the pulse current, destroy the structure of the cell membrane, and form "electroporation" to inactivate the microorganism. [0003] However, the current PEF technology has the following disadvantages: [0004] (1) The pulsed electric field will affect the electrostatic i...

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Problems solved by technology

[0007] The purpose of the present invention is to provide equipment for processing food using high-voltage pulse induction current, which solves the problem that the existing heat sterilization method wil

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