Method for surface culture of microorganisms and cells in flexible culture bags

摘要

A method of using flexible bags for surface culture of microorganisms and cells on a stationary interface between a gaseous phase and a liquid medium and the devices upon which the method are practiced are disclosed. A flexible culture bag is first filled with a liquid growth medium, a sample inoculum, and a predetermined amount of air to create a headspace. The bag is then sealed and placed on a stationary platform, and mounted with an external self-support device on the top web of the bag. The external support device holds the top web of the bag in a fixed position and, thus, prevents the bag from deflating so that a stationary interface between the headspace and the liquid medium in the bag is maintained throughout the cultivation period.