The Production Process Of Camellia Oil

(1) Camellia oleifera seed storage: Camellia oleifera seeds are mainly collected by farmers themselves and purchased from Camellia oleifera tree bases. Camellia oleifera seeds need to be inspected, measured, dried, and cooled before storage. Storage is generally carried out in a temperature environment of 0 ℃~30 ℃, using the biochemical principle of plant seed ripening to promote Camellia oleifera seed ripening. The proposed drying scale for Camellia oleifera seeds is 600t/d.
(2) Pre treatment: Camellia oleifera seeds stored after drying are selected, cleaned and graded, peeled and separated for stone removal, and magnetic separation for iron removal. The pretreated Camellia oleifera seeds are peeled, and the solid waste generated from the peeling is mainly Camellia oleifera shells. After shelling, separate the kernel and shell.
(3) Cold pressing: Using a dedicated cold pressing machine, the pressing temperature is around 70 ℃ to 80 ℃ to avoid darkening of tea seed oil color and loss of effective ingredients caused by high temperature.
(4) Oil residue separation: The crude oil generally contains 8% to 10% slag. Before entering the refining workshop, oil residue separation should be carried out quickly. The timely or not of oil residue separation will directly affect the acidity and color of the crude oil. The longer the retention time, the higher the acidity and darker the color.
Due to the high viscosity and high gum content of tea seed oil, it is difficult to separate oil residue. The commonly used method is plate and frame filtration. Although the labor intensity of the plate and frame filter workers is high, the residue content of the filtered crude oil is generally below 0.1%, while the residue content of the crude oil filtered by the horizontal screw separator is about 3%. Before filtration, use an oil residue separation scraper to reduce most of the residue content in the crude oil. The filtration temperature should not be too high, generally between 60 ℃ and 70 ℃, and the pressure should not be too high, generally less than 0.3Mpa, otherwise it will affect the quality of the oil.