Anomalous violation of the OZI-rule in the Nbar Nto ΦΦ, Nbar Nto Φγ reactions and instantons

It is shown, that specific properties of the instanton induced interaction between quarks leads to the anomalous violation of the OZI-rule in the $N\bar N\to \Phi\Phi$, $N\bar N\to \Phi\gamma$ reactions. In the framework of instanton model of the QCD vacuum, the energy dependence of the cross sections of these reactions is calculated.