论单通道检测在发酵尾气分析中的应用

Discussion on the application of single channel detection in fermentation tail gas analysis

发酵尾气分析技术在业内的应用已逐渐展开,但人们对单通道检测的认识依旧模糊。从尾气分析的意义、生物过程的“实时性”以及发酵过程的“临界点”反映发酵状态的改变等方面,阐述了发酵尾气分析应采用实时、连续、在线检测;通过以尾气分析获得的“临界点”在发酵工程中的应用(指导转速调整、流加补料、乳糖诱导及处理异常发酵),进一步阐明只有单通道检测才能真正做到检测的实时、连续、在线,捕捉到有价值的“临界点”信息。

The technology of fermentation tail gas analysis has been gradually developed and applied in the industry,but single-channel detection is still poorly understood.In this paper,we expounded that fermentation tail gas analysis should adopt real-time continuous online detection from the significance of fermentation tail gas analysis,the“real-time”of biological process,and the critical point of fermentation tail gas analysis curve reflecting the change information of process state,and the critical point obtained from tail gas analysis in fermentation engineering(guidance of speed adjustment,flow feeding,lactose induction and treatment of abnormal fermentation)illustrated that only single channel detection can achieve real-time,continuous and online detection,and capture valuable“critical point”information.