Table 2. Bulk density, apparent density, porosity, expansion ratio and specific length of extruded rice snacks based on the rice cultivar

Sample	Bulk density (g/cm³)	Apparent density (g/cm³)	Porosity	Expansion ratio	Specific length (mm/g)
‘Aromi’	0.13±0.01^b¹⁾	0.81±0.02^a	0.84±0.01^a	12.09±0.38^a	78.59±4.31^c
‘Hanahreum’	0.14±0.01^b	0.77±0.02^b	0.81±0.01^a	11.12±0.54^c	96.98±6.55^a
‘Jasmin 85’	0.14±0.01^b	0.83±0.01^a	0.84±0.01^a	11.78±0.49^ab	75.79±5.65^c
‘Bukkyeong 2012-2’	0.19±0.02^a	0.69±0.02^c	0.72±0.03^b	11.67±0.46^b	82.99±5.00^b

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