. 2019 Nov 6;9(11):146. doi: 10.3390/membranes9110146

Table 4.

Anthocyanins content in the feed and permeate stream of investigated membranes.

Compound	Sample	Membrane Pore Size
Compound	Sample	0.14 µm	0.2 µm	0.8 µm
Malvidin-3-O-glucoside (mg/L)	Feed	43.77 ± 0.58	43.29 ± 2.1	40.62 ± 1.8
Malvidin-3-O-glucoside (mg/L)	Permeate *	42.95 ± 0.71	42.72 ± 1.26	39.44 ± 0.22
Malvidin 3-(acetyl)-glucoside (mg/L) **	Feed	18.81 ± 4.8	19.13 ± 1.3	17.49 ± 2.6
Malvidin 3-(acetyl)-glucoside (mg/L) **	Permeate *	18.01 ± 0.39	18.08 ± 0.30	16.76 ± 0.12
Malvidin 3-(coumaroyl)-glucoside **	Feed	79.46 ± 4.7	79.72 ± 5.1	76.10 ± 3.2
Malvidin 3-(coumaroyl)-glucoside **	Permeate *	75.71 ± 2.18	74.91 ± 1.60	68.65 ± 12.85

* The value reported is the mean ± SD for the samples taken during 180 min of filtration (9 samples taken every 20 min). ** malvidin 3-(acetyl)-glucoside and malvidin 3-(coumaroyl)-glucoside were expressed as malvidin-3-glucoside equivalents.