Application of on-line monitoring system for solid-state fermentation based on CO2 gas content
In order to measure CO2 gas content in Baijiu solid state fermentation pit online,the feasibility and wide application of real-time monitoring of solid-state fermentation process in Huangochre production center of Luzhou Laojiao,the variation trend of CO2 gas content in pit was compared during fermentation process under different loading-pit grains conditions.The results showed that within 50 d of fermentation,the CO2 gas content in the pit first experienced a rapid rise stage,reaching about 90％of the peak value,and then entered a stable period lasting nearly 10 d.Finally,the CO2 gas content in the pit showed a decrease rate of about 1％per day until the end of fermentation.This parameter could reflect the normal state of fer-mented grains in solid-state fermentation process and provide a reliable real-time on-line monitoring method for the monitoring of solid-state fermen-tation process.This monitoring method overcame the shortcomings of the traditional sampling and inspection method which caused damage to the solid-state fermentation environment,and greatly improved the detection efficiency and convenience.
solid-state fermentationCO2 gas contentfermentation statereal-time monitoring
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