SciELO - Scientific Electronic Library Online

vol.32 issue2Assessment of lettuce quality during storage at low relative humidity using Global Stability Index methodologyDensity and rheological parameters of goat milk author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Food Science and Technology

Print version ISSN 0101-2061


SIMBALISTA, Renée Leão; FROTA, Karoline de Macêdo Gonçalves; SOARES, Rosana Aparecida Manólio  and  AREAS, José Alfredo Gomes. Effect of storage and processing of Brazilian flaxseed on lipid and lignan contents. Ciênc. Tecnol. Aliment. [online]. 2012, vol.32, n.2, pp.374-380.  Epub Apr 12, 2012. ISSN 0101-2061.

Flaxseed has been widely studied around the world; its incorporation into products habitually consumed by human populations has been stimulated due to its unique nutritional value. The objective of this study was to evaluate the chemical composition of Brazilian flaxseed, to analyze the stability of lipids present in whole flaxseed flour (WFF) or partially defatted flaxseed flour (DFF) stored under several temperatures, and to investigate the effect of bread making on a product containing flaxseed. Whole flaxseed flour presented (g.100 g-1) 25.7 of insoluble fiber, 10.7 of soluble fiber, 38.9 of lipids, and 2.65 of lignan. Defatted flaxseed flour presented 65% less lipids, 36% more fiber and 56% more lignan than whole flaxseed flour. The fatty acid profile was maintained in the defatted flaxseed flour, and it presented a stable composition during storage under ambient temperature, refrigeration, and freezing. The fatty acid profile was similar in the bread containing defatted flaxseed flour after dough development, baking, and storage at room temperature or refrigerated. After baking, 89% of the lignan content was kept in bread. Results show that Brazilian flaxseed has an interesting chemical composition, and that defatted flaxseed, by-product of lipid extraction, presents a good stability to grind and storage under several temperatures. Thus, defatted flaxseed flour can be incorporated in bread, increasing its nutritional and functional value.

Keywords : flaxseed; lignan; fatty acids' profile; stability to process and storage.

        · abstract in Portuguese     · text in English     · English ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License