• Can we extract oil from grape seeds by cold screw pressing?
  • This study evaluated the physical properties and oil extraction from grape seeds from three white (Welschriesling, Green Veltliner, Hibernal) and two red (Zweigelt and Saint Laurent) must varieties of grapevine by cold screw pressing as the appropriate extraction process.
  • Why should I install a Dox before an extruder ??
  • Installing a Dox ahead of an extruder ? has several advantages: it doubles the capacity of the press, replaces expensive steam-heated cooking vessels, doubles the life of the pressing parts, and reduces meal oil residuals to under 6%. The oilseeds processed with this system are low-oil content seeds (less than 25% oil).
  • How SCO 2 Extractors improve production efficiency of grapeseed oil?
  • SCO 2 extraction using two extractors in series increased production efficiency of grapeseed oil from 83¨C86% compared to one with only a larger single extractor. Food waste was also reduced by utilizing grape stalks and skin by-products as thermal energy during SCO 2 extraction.
  • How much oil is pressed from grape seeds?
  • The quantity of the pressed oil ranges from 67.5 to 98.5 g.kg?1 and thus depends on the variety. The measured results can be used in commercial practice for optimizing the pressing process for pressing of oil from grape seeds. Effect of the number of revolutions of the press spindle for oil yield (%) in seeds of white grape varieties.