As the grain agricultural by-product, the rice bran is rich on nutritional component.Many literatures about extraction of the protein or phytic acid from the defatted rice bran had been reported.In this study, the extraction of protein and phytic acid synchronously from the defatted rice bran as the innovation,compared with the former extraction step by step, simplified the extraction process,saved the partial process equipment.The experiment had mainly studied process condition about the extraction of prot...