• rice bran oil extraction machine usingic solvents in Ethiopia
  • rice bran oil extraction machine usingic solvents in Ethiopia
  • rice bran oil extraction machine usingic solvents in Ethiopia
  • rice bran oil extraction machine usingic solvents in Ethiopia
  • Does hexane substitution affect rice bran oil extraction?
  • The impact of hexane substitution by ethanol or isopropanol on rice bran oil extraction was assessed. Oil physicochemical characteristics and protein fraction functionality were evaluated. The temperature and solvent type influenced the yield of oil. Increased solvent hydration and temperature negatively affected protein solubility.
  • How are rice bran pellets extracted?
  • The rice bran pellets and alcoholic solvent, which were weighed using an analytical balance with a readability of 0.0001 g (Adam, model PW 254, Milton Keynes, UK), were transferred to the extractor device and agitated (175 rpm) for 1 h at the desired temperature. The extraction experiments were performed at least in duplicate.
  • Can rice bran oil be deacidified?
  • In fact, oil can be deacidified by liquid–liquid extraction with alcoholic solvents due to their partial miscibility, as shown by Rodrigues et al. (2014), who deacidified rice bran oil using ethanol as the solvent.
  • Does the alcohol extraction process affect the protein fraction of rice bran?
  • This value is consistent with the NSI presented by the rice bran defatted with hexane and submitted to a desolventizing process. Therefore, it can be inferred that the alcohol extraction process at 80 °C using IPA12 as the solvent affects the protein fraction of the rice bran similarly to the industrial desolventization process.
  • What is the nitrogen solubility index of rice bran pellets?
  • Nitrogen solubility index (NSI, %) for rice bran pellets as a function of pH. These observations are consistent with those of Bera and Mukherjee (1989), who reported NSI curves for rice bran protein concentrates prepared from full-fat and defatted raw rice brans in 0.1 M NaCl in the pH range of 2.0 to 10.5.
  • What is the minimum and maximum solubility of rice bran protein concentrates?
  • The minimum and maximum solubilities were observed at pH 4.5 and in the pH range of 9.0 to 10.5, respectively. Zhang et al. (2012) evaluated the solubility of heat-stabilized defatted rice bran protein concentrates in water in the pH range of 3.0 to 11.0. The minimum solubility was observed at pH 4.0.