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Saccharomyces cerevisiae Exponential Growth Kinetics in Batch Culture to Analyze Respiratory and Fermentative Metabolism
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Dynamic Growth Monitoring of Saccharomyces cerevisiae Based on Microwave Sensor Array.

Song Lin1, Li-Ting Zhao2, Yi-Xuan Gao1

  • 1School of Integrated Circuits, Jiangnan University, Wuxi 214122, China.

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|May 30, 2025
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Summary

A novel microwave monitoring system using a nested split-ring resonator (NSRR) array enables real-time, non-contact tracking of Saccharomyces cerevisiae YPH499 growth. This system accurately characterizes yeast dynamics, improving alcoholic product brewing processes.

Keywords:
Saccharomyces cerevisiaedynamic growth monitoringmicrowave sensor arraymicrowave synthetic parameternested split-ring resonator (NSRR)

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Area of Science:

  • Biotechnology
  • Food Science
  • Microwave Engineering

Background:

  • Saccharomyces cerevisiae YPH499 is crucial for alcoholic beverage production.
  • Current methods lack real-time, non-contact monitoring of YPH499 growth dynamics.

Purpose of the Study:

  • To develop a microwave monitoring system for real-time, non-contact assessment of YPH499 growth.
  • To establish correlations between microwave parameters and yeast physiological states (survival and apoptosis).

Main Methods:

  • Utilized a nested split-ring resonator (NSRR) array for microwave detection.
  • Applied Principal Component Analysis (PCA) to YPH499 growth data.
  • Employed Dempster-Shafer (D-S) evidence theory for data fusion.
  • Correlated microwave synthetic parameters (MSP) with survival and apoptosis rates.

Main Results:

  • Microwave parameters effectively characterized YPH499 dynamic growth.
  • PC1 derived from PCA served as a robust composite parameter for monitoring.
  • The NSRR array demonstrated superior monitoring capability compared to individual resonators.
  • MSP3 showed a high correlation (R²=0.9985) with YPH499 survival and apoptosis rates.

Conclusions:

  • The developed microwave monitoring system provides an effective tool for real-time, non-contact assessment of YPH499.
  • The system enhances the evaluation and control of the brewing process.
  • This technology holds potential for optimizing fermentation monitoring in the food and beverage industry.