Table 1.
Type† | Protein origin | Expression | pH optima | Temperature optima (°C) | Trade name |
---|---|---|---|---|---|
3 | A. niger* | A. niger | 2; 5–5.5 | 65 | Natuphos® |
3 | A. niger* | A. niger, non-recombinant | 6.0 | – | Allzyme® SSF |
3 | A. niger* | Trichoderma reesei | 2.5 | – | Finase® P/L |
6 | Escherichia coli* | Schizosaccharomyces pombe (ATCC 5233) | 4.5 | 55 | Phyzyme® XP |
6 | Escherichia coli* | Pichia pastoris | 4.5 | – | Quantum® |
6 | Escherichia coli | Trichoderma reesei | — | – | Quantum Blue® |
6 | Escherichia coli* | Pichia pastoris | 3.4, 5.0 | 58 | OptiPhos® |
6 | Peniophora lycii* | Aspergillus oryzae | 4–4.5 | 50–55 | Ronozyme® |
6 | Citrobacter braakii | Aspergillus oryzae | — | — | Ronozyme Hiphos® |
6 | Buttiauxella spp. | Trichoderma reesei | 3.5–4.5# | 60# | Axtra® PHY |
Adapted from Lei et al.1 with modifications;
3- or 6-phytase; —, no information available;
personal communication (C Evans).