Amaranth nutritional value has been widely recognized, but the required
conditions for its processing cannot be adapted to traditional technologies. For the
proposal of alternative strategies, the changes of several components should be
understood. Enriched starch and lipid–protein fractions of amaranth flour upon
different milling treatments were obtained and characterized by attenuated total
reflectance–Fourier transforminfrared spectroscopy. Starch and lipid–proteinenriched
amaranth fractions were obtained by abrasive milling; amaranth starch
was isolated by wetmilling procedure, and flour samples were obtained from
planetary ball milling. Changes on starch, protein, and lipids relative contents, on
starch crystallinity and on lipids and protein stability after milling and 6month
storage, were evaluated