The following is a typical process flow of leaching method to produce grape seed oil:
1.Clean-up: Grape seeds are screened to remove impurities and substandard grains.
2.Softening: The grape seeds are softened to increase their oil yield.
3.Embryo rolling: The softened grape seeds are rolled to destroy their cell structure and improve the oil yield.
4.Steaming: The grapes are steamed and fried to increase their temperature and moisture content and promote the release of oil.
5.Leaching: The steamed and fried grape seeds are put into the leacher and leached with solvents (such as n-hexane, petroleum ether, etc.) to extract the oil in them.
6.Separation: The leached mixture is separated to obtain grease and solvent.
7.Refining: The separated oil is refined to remove impurities and odors and improve the quality of the oil.
8.Packaging: The refined grapeseed oil is packed in an appropriate container.
It is important to note that the extraction process of grapeseed oil needs to be carried out under the right conditions to ensure the quality and efficiency of the oil. In addition, the solvents used in the extraction process need to meet relevant safety and environmental standards. Grape seed oil extract