Because the same pH indicator (phenol red) is also used in these fermentation tubes, the same results are considered positive (e.g. a lactose broth tube that turns yellow after incubation has been ...

Optical density values were maintained around 80 and viability at 88% at 72 hours elapsed fermentation time ... as well as the services of an in-house lab to assist with process development ...

Bacterial protein expression is done using a parallel fermentation system composed of 96 arrayed 100-ml culture tubes that allow high-density cell growth with yields of 2–4 g of cell pellet for ...