2.2.7. Determination of bulk density
Spiked millet substitution method was used to detect the volume
of the chips (Huang et al., 2009b). The granularity of
spiked millet was between 0.9 and 1.1 mm. The bulk density
of the dried material was defined as where m is the mass of dry solids, V is total volume of mixed
restructured chips