Inactivation of Yeast

Inactivation of Yeast

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SKU: Yeast Thermolyzer Categories: , ,
Description

Description

Application

The Yeast Thermolyzer deactivates yeast by pasteurization. Containing a high level of vitamin B and proteins, waste or surplus yeast is a valuable product which can be used after thermolyzis.

Description

For thermal deactivation the yeast is heated to its deactivation temperature. The yeast flows through a special heat exchanger, then into a holding tube. Hot water or steam can be used as heating medium. In the holding tube the yeast is held at the deactivation temperature for a specified time. Typically, 10 seconds at 75 °C is sufficient to deactivate yeast. In this way, all the live cell membranes are ruptured. For efficient energy use, the deactivation system can be designed as a two-stage system with a regeneration zone. The first step is energy recovery. The live yeast is heated as it flows in counter current to already deactivated hot yeast. Heat from the deactivated yeast is thereby returned to the process. In the second step the yeast is warmed up to the target deactivation temperature by the heating medium.

  • Constant deactivation, with highly accurate process control
  • Heat recovery for efficient energy use and minimized operating costs
  • Customized modular design with a standard PLC
  • Skid mounted for easy installation and start-up
  • Hygienic execution and full CIP capability

Typical Technical Data

Capacity 10 – 1.000 hl/h
Deactivation Temperature/Holding Time depending on product/application
Material according to requirements (1.4301/AISI 304, 1.4404/AISI 316L, …)
Heating Medium hot water, steam (primary source)
Cooling Medium glycol, ice water, ammonia, brine
Options different automation levels; remote maintenance access; heat recovery section; booster pump; cooling
About Centec

Products & Features

Centec Germany is a premier manufacturer of high-precision process sensors and fully automated skid-mounted systems for the beverage, food, pharmaceutical, and chemical industries. With 50 years of experience, they specialize in in-house development and ISO-certified manufacturing, providing tailored, turnkey solutions for liquids processing and quality measurement.

Sensors:

  • Density Measurement (RHOTEC)
  • Sound Velocity (SONATEC)
  • Combined Analysis (COMBITEC) for complex, multi-component liquids
  • O2 (Oxytrans)
  • CO2 (Carbotec)

Automated frame-mounted Process Skids:
These modular systems integrate their high-precision sensors directly into the production line, allowing for "plug-and-play" installation and seamless integration into existing plant automation for 

  • Water Treatment & Purification
  • Beverage & Liquid Processing
  • Cleaning & Sterilization

Key Benefits

  • Single Source Responsibility: Engineering, manufacturing, installation, and commissioning from one provider, reducing project complexity.
  • Superior Process Accuracy: Inline measurement of density, sound velocity, O2 and CO2 concentration ensures maximum product quality.
  • Increased Efficiency & Lower Costs: Optimized designs minimize space requirements and operational expenses.
  • Global Support: A worldwide network ensures fast service and technical support.