Table 2.

Permeate flow rate and trans-membrane pressure difference at each stage of the filtration process without and with 10L diafiltration at stage III.

	Without Diafiltration				With 10L Diafiltration
	Permeate flow rate (mL/min)		Trans-membrane pressure difference (psig)		Permeate flow rate (mL/min)		Trans-membrane pressure difference (psig)
Stage	Start	End	Start	End	Start	End	Start	End
I	45.60±2.20	21.30±4.25	2.92±0.40	10.67±2.02	38.00±5.29	17.53±1.29	3.81±0.96	9.87±1.21
II	29.40±3.84	21.40±4.23	2.10±0.34	2.78±0.49	57.00±4.58	29.40±2.40	3.56±0.27	1.23±0.19
III	13.50±1.34	4.30±0.54	8.34±1.30	10.74±2.34	11.50±3.50	2.67±0.44	6.55±2.80	9.97±2.78