The evaluation of the mechanical properties of crumb is of
particular importance, because they determine the consumer’s
perception of bread quality 2. The most common method to
measure crumb firmness is based on indentation 10. However,
the relation between the stress applied on crumb and the resulting strain is nonlinear and, due to the crumb’s visco-elastic
nature, depends on the time scale of observation 11. Nevertheless, at low stresses, bread crumb behaves as a linear elastic
solid and its deformation behaviour is independent of the time
scales of observation 1. Within these boundaries, the linear zone
of a load-displacement curve from a classical indentation can be
used for extracting bread crumb elastic properties 10.
The evaluation of the mechanical properties of crumb is of
particular importance, because they determine the consumer’s
perception of bread quality 2. The most common method to
measure crumb firmness is based on indentation 10. However,
the relation between the stress applied on crumb and the resulting strain is nonlinear and, due to the crumb’s visco-elastic
nature, depends on the time scale of observation 11. Nevertheless, at low stresses, bread crumb behaves as a linear elastic
solid and its deformation behaviour is independent of the time
scales of observation 1. Within these boundaries, the linear zone
of a load-displacement curve from a classical indentation can be
used for extracting bread crumb elastic properties 10.
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