Electronic Journal of Differential Equations, Vol. 2013 (2013), No. 210, pp. 1-22. Title: Homogenization of a system of semilinear diffusion-reaction equations in an $H^{1,p}$ setting Authors: Hari Shankar Mahato (Univ. of Bremen, Bremen, Germany) Michael Bohm (Univ. of Bremen, Bremen, Germany) Abstract: In this article, homogenization of a system of semilinear multi-species diffusion-reaction equations is shown. The presence of highly nonlinear reaction rate terms on the right-hand side of the equations make the model difficult to analyze. We obtain some a-priori estimates of the solution which give the strong and two-scale convergences of the solution. We homogenize this system of diffusion-reaction equations by passing to the limit using two-scale convergence. Submitted July 14, 2013. Published September 19, 2013. Math Subject Classifications: 35B27, 35K57, 35K58, 46E35, 35D30. Key Words: Global solution; semilinear parabolic equation; reversible reactions; Lyapunov functionals; maximal regularity; homogenization; two-scale convergence.