The hydration method of camellia seeds

The water based extraction of tea oil mainly refers to the enzymatic and water based methods. The water enzyme method mainly uses mechanical and enzymatic methods to break down the cell wall of oilseeds, and can also destroy other lipid complexes that are bound to carbohydrates and proteins, releasing lipids. At the same time, it can effectively retain proteins and bioactive substances in oilseed cake. Wang Chao et al. compared the extraction rates of camellia seed oil with several different enzymes and found that the optimal extraction process conditions were: Alcalase 2.0L protease, temperature 55 ℃, pH=8, solid-liquid ratio 1:6 (g/mL), enzyme hydrolysis for 4 hours, and oil extraction rate of 78.25%.
The principle of water substitution method is to use water to replace the position of oil in oil cells, so as to release oil. Then, based on the immiscibility of water and oil and the difference in density between water and oil, a method of separating oil using centrifugal force is used. Guo Weibao et al. studied the optimal process conditions for the extraction of tea oil by water substitution method: the solid-liquid ratio was 1:4.5, the extraction temperature was 75 ℃, the extraction time was 2.5 hours, the pH was 9.0, and the extraction rate was as high as 90.19%.