Effect of DF content on some physical characteristics of extruded rice grain^a.

DF content (%)	Density (g mL−1)	Whiteness degree	Transparency
CK	0.3359 ± 0.0942a	41.10 ± 0.10a	3.88 ± 0.10a
DF-0	0.3322 ± 0.0987a	19.40 ± 0.10b	2.10 ± 0.10b
DF-3	0.3359 ± 0.1028a	18.80 ± 0.20b	1.72 ± 0.10c
DF-6	0.3325 ± 0.0972a	14.90 ± 0.10c	1.50 ± 0.10c
DF-9	0.3374 ± 0.0886a	14.10 ± 0.10d	1.48 ± 0.10d
DF-12	0.3412 ± 0.0914a	13.93 ± 0.15e	1.08 ± 0.06e
DF-15	0.3357 ± 0.0799a	12.73 ± 0.49f	0.94 ± 0.01f

^aAll the values are the mean ± SD. Values with different letters within a column are significantly different at p < 0.05 as evaluated by Tukey's test to analyze the different soybean DF contents and the CK (a natural rice) in the same column.