Mf. Andreasen et al., Content of phenolic acids and ferulic acid dehydrodimers in 17 rye (Secalecereale L.) varieties, J AGR FOOD, 48(7), 2000, pp. 2837-2842
The contents of phenolic acids and ferulic acid dehydrodimers were quantifi
ed by HPLC analysis after alkaline hydrolysis in kernels of 17 rye (Secale
cereale L.) varieties grown in one location in Denmark during 1997 and 1998
. Significant variations (P < 0.05) with regard to the concentration of the
analyzed components were observed among the different rye varieties and al
so between different harvest years. However, the content of phenolic acids
in the analyzed rye varieties was narrow compared to cereals such as wheat
and barley. The concentration of ferulic acid, the most abundant phenolic a
cid, ranged from 900 to 1170 mu g g(-1) dry matter. The content in sinapic
acid ranged from 70 to 140 mu g g(-1) dry matter, p-coumaric acid ranged fr
om 40 to 70 mu g g(-1) dry matter, and caffeic, p-hydroxybenzoic, protocate
chuic, and vanillic acids were all detected in concentrations less than 20
mu g g(-1) day matter. The roost abundant ferulic acid dehydrodimer 8-O-4'-
DiFA was quantified in concentrations from 130 to 200 mu g g(-1) dry matter
followed by 8,5'-DiFA benzofuran form (50-100 mu g g(-1) dry matter), 5,5'
-DiFA (40-70 mu g g(-1) dry matter), and 8,5'-DiFA (20-40 mu g g(-1) dry ma
tter).