Influence of cultivation Rhizopus oryzae on rice bran on lipid fraction: Fatty acids and phospholipids

The aim of this study was to evaluate changes in the lipid fraction of rice bran after cultivation with Rhizopus oryzae. The content of lipids, phospholipids and fatty acid profile, besides the three phosphorus forms were regularly analyzed during the cultivation time. The total lipids from cultivated rice bran increased from 16.2% to 19.0% in the range between 0 h and 60 h of cultivation and phospholipid contents were increased 29% after 12 h of cultivation. In the control sample, linolelaidic, oleic and palmitic acids prevailed, with a decrease in oleic (15.5%) and increase in linolelaidic (11.9%) at 84 h of cultivation. In the same range the essential fatty acid (ω6 and ω3) increased from 44.5% to 50.4%. The inorganic phosphorus increased from 12 h cultivation and it reached content more than the organic with 36 h. This study showed that the cultivation with Rhizopus oryzae on rice bran can be applied to change the essential fatty acids profile and phospholipids.