尾气分析在发酵食品行业中的应用

Off-gas analysis in fermented foods industry

发酵尾气在线监测对于发酵食品的品质控制、产量提高具有重要意义。对发酵尾气数据进行分析,不仅可以了解发酵的状态和进程,判断底物消耗,还能帮助判断发酵终点。文章介绍了常用的尾气分析方法以及目前尾气分析在氨基酸、有机酸、酶制剂等发酵食品中的应用情况。过程气体质谱分析仪是一种高精度、实时的在线气体分析仪器,具有可监测通道数多、长期稳定性好等特点,对于食品发酵过程尾气监测具有极大的应用潜力。

Off-gas analysis plays an important role in the production of fermented foods.It is noninvasive and enables on-line process monitoring of the physiological status of the fermentation,including growth kinetics and substrate consumption.It also helps determine the optimum point to halt the process for maximum yield.Two kinds of analytical method,as well as the applications in fermented food such as amino acid,organic acid,enzymes and so on were introduced.Process mass spectrometer will be potentially used in various of fermented food production fields,which can monitor several fermenters simultaneously with long-term good stability and high-precision.