Fig. 7

Effect of r-Aophytase on the release of inorganic phosphorus or minerals from feedstuffs. a With an increase of the amount of r-Aophytase, the release of inorganic phosphorus from soybean meal increases accordingly; b the total amount of the minerals, Ca²⁺ Fe²⁺, Zn²⁺ and Mg²⁺ in 1 g durum wheat flour or finger millet flour; c r-Aophytase significantly improved the release of Ca²⁺ Fe²⁺, Zn²⁺ and Mg²⁺ ions from durum wheat flour; d r-Aophytase significantly improved the release of Ca²⁺ Fe²⁺, Zn²⁺ and Mg²⁺ ions from finger millet flour. ^# P < 0.01, 0.5 U–2.5 U r-Aophytase vs. 0 U r-Aophytase, or 20 U r-Aophytase vs. Control; * P < 0.05, 20U r-Aophytase vs. Control