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Tannins, phytic acid and isothiocyanates in the NF
| Parameter | Batch number | Method | |||
|---|---|---|---|---|---|
| #22 | #23 | #24 | #25 | ||
| Tannins as tannic acid (%) | 0.440 | 0.940 | 0.780 | 0.940 | ISO 9648 UV/VIS |
| Phytic acid (%) | 1.93 | 2.16 | 0.96 | 2.14 | Anal. Biochemistry Vol 77:536–539 (1977) /ICP‐OES |
| Isothiocyanates mg/kg | 17.00 | 75.00 | 43.00 | 34.00 | Titrimetry (ANA‐07.1672) |
ICP‐OES: inductively coupled plasma‐optical emission spectrometry; ISO: International Organisation for Standardisation; UV/VIS: ultraviolet visible spectrophotometry.
