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Fig. 4. Effects of non-IP6 organic ligands (LIGND) on the inhibition of myo-inositol 1,2,3,5/4,6-hexakis dihydrogenphosphate (IP6) dephosphorylation by Aspergillus ficuum phytase EC 3.1.3.8 by polyvalent counterions in 100 g total solid L–1 dairy manure suspension. The IP6 counterion concentrations ranged from 0 to 1.5 mM. (A) 0, (B) 0.25, (C) 0.75, and (D) 1.5 mM Ca2+, Al3+, and Fe3+. Dashed lines represent relative concentration of PO4–P in untreated manure suspensions that had no added counterion and no added IP6.
