Table 1 Maximum solubility and stability of tyrosine derivates in Merck Millipore proprietary feed or medium at pH 7,0.
From: Improved fed-batch bioprocesses using chemically modified amino acids in concentrated feeds
Molecule | Tyrosine | Tyrosine di-sodium salt | Modified Tyrosine 2 | Modified Tyrosine 3 | Modified Tyrosine 4 |
|---|---|---|---|---|---|
Solubility in concentrated feed at pH 7,0 | Not soluble | < 1 g/l | 10 g/l | 70 g/l | 75 g/l |
Stability in medium at pH 7,0 | - | > 6 months | > 6 months | > 6 months | > 6 months |