mean value, \* black-hull oilseed, \*\*striped-hull

The high *ϕ* value thus suggests that the seeds tend towards a spherical shape. Thus, the val‐ ue of the *ϕ* generally indicates a likely difficulty in getting the seed to roll. This tendency to either roll or slide should be necessary in the design of hoppers and dehulling equipment

oilseed

, 1.32 mm, 0.129 g and 66.7 % respectively. Statistical analysis

Moisture-Dependent Engineering Properties of Chia (Salvia hispanica L.) Seeds

http://dx.doi.org/10.5772/53173

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level of power for driving the aeration fans [25].

average values were 1.21 mm3

**Table 6.** Sphericity (ϕ) of different seeds

for the seed.

bean seed (Table 6).

**Table 5.** Regression equations as a function of moisture content (x, %d.b.) with their respective coefficient of determination (R2) for porosity (ε, %).

Figure 5. Volume (*V*), equivalent diameter (*De*), thousand seed mass (*W1000*), and sphericity () of dark chia seeds with different moisture content (1:4.6, 2:6.5, 3:8.7, 4:10.0, 5:12.5, 6:15,3, 7:17,7). **Figure 5.** (a) volume (*V*), (b) equivalent diameter (*De*), (c) thousand seed mass (*W1000*), and (d) sphericity ( ) of dark chia seeds with different moisture content (1) 4.6%, (2) 6.5%, (3) 8.7%, (4) 10.0%, (5) 12.5%, (6) 15.3%, (7) 17.7%).

than those of amaranth, quinoa, rapeseed and soybean seed (Table 6).
