Abstract
Due to the increasing role of organic farming in cereal production the accumulation of arabinoxylan, a key dietary fibre component with many health benefits, was analyzed in winter wheat and spring barley grains cultivated in organic and conventional conditions during an eight-year period. The long-term experiment was conducted at the Estonian University of Life Sciences from 2014 to 2021. The content of arabinoxylan in different spring barley and winter wheat varieties was investigated in grains collected from the Estonian Crop Research Institute in 2021. Results showed that the arabinoxylan content of winter wheat and spring barley grains were influenced by weather conditions, especially by temperature during the grain filling period. Higher temperature increased arabinoxylan content in grains. Cropping system and fertilizer treatments affected the level of the crop yield and through this altered winter wheat grain arabinoxylan content, which was higher in organic cropping system in years with cooler grain filling period temperatures. Cereal species had a greater impact on winter wheat and spring barley arabinoxylan content than variety, with wheat having higher arabinoxylan content. These results suggest that arabinoxylan from wheat and barley grains can be a valuable resource for cereal valorization via nutritional enhancement.
Published Version
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