Fig. 4.

Enzyme activity of ManB- and CsnA-displaying cells. a Activities of freshly harvested cells with the left three and right three bars respresenting mannanase and chitosanase activity, respectively. L. plantarum harboring the empty vector, pEV, was used as negative control in both cases. b Results of repeated activity measurements, with 0 indicating freshly harvested cells, while 1, 2, 3, 4 indicated the number of repetitions. In between the activity measurements the cells were washed with PBS as described in “Methods” section