Table 6. Bulk density, apparent density, porosity, expansion ratio and specific length of extruded rice snacks based on the corn flour ratio

Ratio (%) of corn flour and rice flour	Bulk density (g/cm³)	Apparent density (g/cm³)	Porosity	Expansion ratio	Specific length (mm/g)
100 : 0	0.10±0.01^d¹⁾	0.69±0.02^b	0.86±0.01^ab	10.81±0.85^a	110.05±12.87^c
70 : 30	0.12±0.01^b	0.69±0.03^b	0.83±0.01^c	10.70±0.42^a	113.53±10.28^c
50 : 50	0.11±0.01^c	0.71±0.01^b	0.85±0.01^b	10.87±0.54^a	122.94±6.91^b
30 : 70	0.10±0.01^d	0.73±0.06^ab	0.87±0.01^a	10.97±0.37^a	138.94±6.33^a
0 : 100	0.14±0.01^a	0.79±0.03^a	0.82±0.01^c	11.19±0.56^a	96.81±3.87^d

Values are mean±SD of triplicate determinations. Different superscripts within a column indicate significant differences (p<0.05).