At 12:02 on June 7, 2019, Chen Jinxue mistakenly stopped 108 first-class seed tanks (with a period of 3hr) of acarbose 5001-a190601 batch, and started again at 12:04.<br>The root cause of this deviation is that the post disinfection personnel mistakenly said the wrong tank number, and it can be seen that the tank personnel did not check the batch record and the computer display cycle before stopping, and stopped 108 tanks by mistake.<br>At 12:02 on June 7, 2019, Chen Jinxue, a tank watcher, stopped the 108 tanks by mistake, resulting in the suspension of 108 tanks of 5001-a190601 batch of first-class seed tanks with only three hours of cultivation, and the cycle returned to zero. At 12:04, 108 tanks were restarted and the incubation period of 108 tanks was restarted. The period indicates the length of fermentation and culture time, which will not affect other fermentation parameters. According to the historical curve during shutdown (2 minutes), there is no big fluctuation in fermentation parameters such as temperature and pressure. After restart, all fermentation parameters of tank 108 are normal, so it is considered that the wrong shutdown has no impact on fermentation and culture of tank 108.<br>1. Train the relevant operators of acarbose fermentation post on batch production records (a, B, C, e processes), require the employees to operate in strict accordance with the post SOP, be responsible for the post work, emphasize that the disinfection personnel must inform the tank watcher on site to stop and confirm the correct stop before starting the transfer, and the tank watcher must check before starting and stopping Operate after batch record and computer display.<br>
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