A study of the inhibition of catalase by dipotassium trioxohydroxytetrafluorotriborate K₂[B₃O₃F₄OH]

Safija IslamovicDepartment of Chemistry, Faculty of Science, University of Sarajevo SarajevoBosnia and Herzegovina

Borivoj GalicDepartment of Chemistry, Faculty of Science, University of Sarajevo SarajevoBosnia and Herzegovina

Mladen MilosDepartment of Biochemistry, Faculty of Chemistry and Technology, University of Split SplitCroatiaCorrespondence[email protected]

Figures & data

Figure 1. The Michaelis–Menten plot for catalase: without inhibitor (diamond) and in the presence of 0.4 mM (square); 3.9 mM (triangle) and 69 mM of K₂[B₃O₃F₄OH] (cross).

Figure 1. The Michaelis–Menten plot for catalase: without inhibitor (diamond) and in the presence of 0.4 mM (square); 3.9 mM (triangle) and 69 mM of K2[B3O3F4OH] (cross).

Figure 2. The Lineweaver–Burk plot for catalase: without inhibitor (diamond) and in the presence of 0.4 mM (square); 3.9 mM (triangle) and 69 mM of K₂[B₃O₃F₄OH] (cross).

Figure 2. The Lineweaver–Burk plot for catalase: without inhibitor (diamond) and in the presence of 0.4 mM (square); 3.9 mM (triangle) and 69 mM of K2[B3O3F4OH] (cross).

Figure 3. The dose–response plot of initial rates versus logarithm of concentration of inhibitor K₂[B₃O₃F₄OH]. V_o is initial rate in the absence and V_oi is initial rate in the presence of inhibitor. The concentration of [H₂O₂] was fixed at 30 mmoles L⁻¹.

Figure 3. The dose–response plot of initial rates versus logarithm of concentration of inhibitor K2[B3O3F4OH]. Vo is initial rate in the absence and Voi is initial rate in the presence of inhibitor. The concentration of [H2O2] was fixed at 30 mmoles L−1.

Figure 4. Effect of pH on catalase activity: without inhibitor (diamond) and in the presence of 69 mmoles L⁻¹ of K₂[B₃O₃F₄OH] (square).

Figure 4. Effect of pH on catalase activity: without inhibitor (diamond) and in the presence of 69 mmoles L−1 of K2[B3O3F4OH] (square).

Scheme 1. The mechanism of the K₂[B₃O₃F₄OH] on the inhibition of catalase enzyme activity.

Scheme 1. The mechanism of the K2[B3O3F4OH] on the inhibition of catalase enzyme activity.

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A study of the inhibition of catalase by dipotassium trioxohydroxytetrafluorotriborate K₂[B₃O₃F₄OH]

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A study of the inhibition of catalase by dipotassium trioxohydroxytetrafluorotriborate K₂[B₃O₃F₄OH]