Optimization of phytase concentration from Aspergillus ficuum for phytate-bound phosphorus release in cereal meals
In order to determine the optimum phytase dose needed to release phytate-phosphorus in Zea mays, Triticum aestivum and Sorghum bicolor meals, six phytase concentrations (0, 100, 200, 300, 500 & 1 000 μg/kg) prepared from a commercial phytase (Natuphos®) derived from Aspergillus ficuum, were inve...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Smith and Franklin Academic Publishing
2021
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| Subjects: | |
| Online Access: | https://www.academia.edu/26410734/Optimization_of_Phytase_Concentration_from_Aspergillus_ficuum_for_Phytate_bound_Phosphorus_Release_in_Cereal_Meals http://hdl.handle.net/11408/4290 |
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| Summary: | In order to determine the optimum phytase dose needed to release phytate-phosphorus in Zea mays, Triticum aestivum and Sorghum bicolor meals, six phytase concentrations (0, 100, 200, 300, 500 & 1 000 μg/kg) prepared from a commercial phytase (Natuphos®) derived from Aspergillus ficuum, were investigated. A dose-dependent increase in phytate-phosphorus release with an increase in phytase concentration was noted. The optimum phytase dose for phytate-phosphorus release from Z. mays, T. aestivum and S. bicolor meals was 700, 567 and 667 μg/kg, respectively. Non-phytate phosphorus concentration at the optima phytase doses were 1.4868, 5.742 and 2.136 g/kg for Z. mays, T. aestivum and S. bicolor meals, respectively; translating into incremental phosphorus release of 166.8, 31.0 and 161.4%, respectively. The optimum dose of A. ficuum derived phytase required for release of phytate-phosphorus is dependent on cereal type. |
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