From: High-level expression of human arginase I in Pichia pastoris and its immobilization on chitosan to produce L-ornithine
Step
Total protein (mg)
Total activity (U)
Specific activity (U/mg)
Yield (%)
Culture supernatant
302
2458.3
8.14
100
78.9
8639.6
109.5
351.4
Ni2+-affinity chromatography
32.5
8073
248.4
328.4