Abstract: In this research, sunflower meal was used as raw material, and dietary fiber of sunflower meal were extracted by enzymatic method and chemical method. The enzymatic method got a higher yield than the chemical method. Plant extraction complex enzymes and acidic protease were used in enzymatic method. The results showed that the optimal extracting condition: plant extraction complex enzymes addition dosage 0.4% for 2.5 hours and acidic protease addition dosage 0.2% for 45 min. On these conditions extraction ratio of dietary fiber is 78.3%.

Key words: sunflower meal, dietary fiber, chemical method, enzymatic method