控制发酵过程需要一个迅速而连续测定微生物细胞密度的方法。1978年Matsunaga发现,用一个铂电极和一个过氧化银电极同时插入微生物培养液中时,微生物在铂电极表面被氧化,并产生电流。本文介绍用上述原理的一组装置,来测定微生物细胞密度的方法。该装置(图1)由测定和参照两个部分组成。已用来连续测定枯草杆菌(Bacillus subtilis)发酵时的细胞密度。 Controlling the fermentation process requires a rapid and continuous method of determining microbial cell density. Matsunaga found in 1978 that when a platinum electrode and a silver peroxide electrode were simultaneously inserted into the culture broth, the microorganisms were oxidized on the surface of the platinum electrode and an electric current was generated. This article describes a method for determining the density of microbial cells using a set of devices of the above principle. The device (Figure 1) consists of two parts, measured and referenced. Has been used to continuously determine the cell density of Bacillus subtilis fermentation.