  We found general solutions of matter stress-energy (non-)conservation in
scalar-tensor FLRW-type cosmological models by extending the logotropic
formalism to the case of non-minimal coupling between the scalar field and new
dark fluid candidates. The energy conditions expressed by the generating
function are introduced. Next, we investigate the possibility of separating
baryonic from dark matter and explain their ratio as a chameleon effect in the
presence of non-minimal coupling. To answer the question affirmatively we
analyze simple extensions of the $\Lambda$-CDM model by adding a non-minimally
coupled scalar field in the Einstein frame. Two scenarios involving either a
scalaron (quintessence) or a phantom (ghost) are numerically solved and
compared. As a result, it is shown that in both cases LCDM model can be
reproduced with a high accuracy in the region covered by observations. As
expected, in the case of the phantom (ghost) field the Big-Bang scenario is
replaced by the (matter) Bounce.
