I am a beginner in this field and have read from papers that a stable baseline current has to be obtained, the MFC should start its operation in an open circuit potential (OCP) etc. How do I check for OCP?
The OCP means that there is no change in the potential by injecting feed into the MFC, so the system is stable. This could be evaluated when two consecutive peaks (potential) appear.
You can also take a look at this paper for more illustration (Fig. 2):
Article Single chamber microbial fuel cell with spiral anode for dai...