Table 2.

Soluble and insoluble polyphenolic fraction in ‘Purple’ and ‘Red’ landraces. Values are reported as mean ± SD (n = 5). Significant differences between the two varieties for bran, semolina, or grain are indicated by lowercase letters (t-test, p < 0.05).

Polyphenols (µg/g DM Gallic Acid Equivalent)	Bran		Semolina		Grain
	‘Purple’	‘Red’	‘Purple’	‘Red’	‘Purple’	‘Red’
Soluble phenolic fraction	112 ± 21 a	64 ± 4 b	31 ± 4 b	49 ± 3 a	103 ± 15 a	65 ± 5 b
Insoluble bound phenolic fraction	2391 ± 471 a	1430 ± 284 b	751 ± 105	849 ± 112	2380 ± 455	1840 ± 329