Table 2.
Number and type of MPs detected in cow’s milk samples.
| Milk samples | Total number of MPs per 100 mL** | MP surface < 50 µm2 (%) | PE | PES | PP | PTFE | PS | Other polymers |
|---|---|---|---|---|---|---|---|---|
| Blank (milking machine)—(2nd collection) | 52 | 81 | 52 | ND | ND | ND | ND | ND |
| Raw milk (1st collection) | 204 | 70 | 76 | 44 | 76 | ND | ND |
4 PU*** 4 PA*** |
| Raw milk (2nd collection) | 625 | 71 | 585 | 10 | 0 | 25 | ND | 5 PA*** |
| Cow’s milk liquid (brand A) | 232 | 83 | ND | 8 | 20 | 108 | 96 | ND |
| Cow’s milk liquid 1 (brand B) | 284 | 85 | 52 | 44 | 20 | 116 | 28 |
4 PU*** 4 PSU*** 16 PVA*** |
| Cow’s milk liquid 2 (brand B) | 348 | 69 | 136 | 100 | 30 | 24 | 38 | 20 PU*** |
| Cow’s milk liquid (brand C) | 172 | 89 | 44 | ND | 32 | 84 | ND | 12 PU*** |
| Cow’s milk powder* (brand A) | 356 | 79 | 28 | 188 | 84 | 52 | ND | 4 PA*** |
| Cow milk powder* (brand B) | 1004 | 82 | 44 | 32 | 44 | 880 | ND | 4 PA*** |
ND not detected.
*Reconstituted cow’s milk samples (13 g powder in 100 mL water which corresponds to the serving size of liquid and reconstituted cow’s milk samples with a standard nutritional energy of ca 67 kcal for milk products).
**Values subtracted from the blank.
***PA: polyamide; PU: polyurethane; PSU: polysulfone; PVA: polyvinyl alcohol.