Effects of combination processes on the extraction of pectins from rapeseed cake (Brassica napus L.)

► RSC's potential as a source of pectin has been studied. ► Effective combination process that would obtain high pectin yields was investigated. ► Pectin yield was increased by FRP- or EH-containing combinations. ► CT decreased the pectin yield because of breaking the galacturonic acid. ► Combination process FRP/EH results the highest pectin production.