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| Group / material | Number of samples |
|---|---|
| Initial raw vegetable (Group I) | |
| Raw vegetable | 8 |
| Pretreatment (Group P) | |
| Processed vegetable | 4 |
| Used brine | 4 |
| Total | 8 |
| Salt stock preparation (Group S) | |
| Processed vegetable | 4 |
| Used brine | 4 |
| Total | 8 |
