  This paper addresses the effect of generalized uncertainty principle, emerged
by a different approaches of quantum gravity within Planck scale, on
thermodynamic properties of photon, non-relativistic ideal gases and degenerate
fermions. A modification in pressure, particle number and energy density are
calculated. Astrophysical objects such as main sequence stars and white dwarfs
are examined and discussed as an application. A modification in Lane-Emden
equation due to a change in a polytropic relation caused by the presence of
quantum gravity, is investigated. The applicable range of quantum gravity
parameters is estimated. The bounds in the perturbed parameters are relatively
large but it may be considered reasonable values in the astrophysical regime.
