  It has been recognized in the literature that some physical properties of
hydrated biomolecules, e.g., the occurrence of Boson peak, resembles of those
of glassy state. In the present work is shown that quantum fluctuations play a
fundamental role on describing the glassy state of biomolecules, specially at
lower hydration levels. It is reported a remarkable linear dependence on the
quantumness and the slope of the Boson peak frequency temperature dependence
which would be used to classify de degree of quantum contributions to the
glassy state by glasses in general. Finally, it is shown that the Boson peak
two-bands spectral structure observed in some cases could be direct linked to
the anisotropy of the material elastic properties.
