Anthocyanin Retention of Cranberry (Vaccinium macrocarpon) Juice Subjected to Different Nanofiltration Conditions

Table 3

Filtration time and permeate flux at different transmembrane pressures and feed flow rates.

Assay	Transmembrane pressure; bar	Feed flow rate; L min^−1	Filtration time at min	Maximum permeate flux at L h^−1 m^−2	Filtration time at min	Minimum permeate flux at L h^−1 m^−2
1	20	1	1	20.48	260	3.05
2	20	6	1	24.44	240	3.24
3	20	12	1	26.96	220	3.48
4	30	1	1	24.97	200	3.95
5	30	6	1	31.62	180	4.13
6	30	12	1	36.30	160	4.64
7	40	1	1	25.25	180	4.52
8	40	6	1	37.78	140	5.83
9	40	12	1	41.31	120	7.11