CONCLUSION
The high amount of hulls in silflower seeds makes for a good case for dehulling before oil extraction. Dehulling reduces the volume of material, thus increasing the throughput of the oil extractor. Stripping the hulls from the kernel by using a corrugated roller-mill is a promising method and needs to be optimized further. Grading the seeds by thickness will facilitate the milling process by reducing the number of passes through the rollers with the seeds of similar thickness. By optimizing the dehulling process, it is possible to produce defatted meal well within the range of a protein concentrate. This high protein meal is also a good starting material for enriching the protein further into a protein isolate.