Preparation method of kosteletzkya virginica seed essential oil
A technique for seeds and mallow, which is applied in the field of preparation of seaside mallow seed essential oil, to achieve the effects of high extraction efficiency, no solvent residue, and low cost
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Embodiment 1
[0018] 1) Remove impurities and shells from the picked seaside mallow seeds, put them in an oven at 45°C for 5 hours, take them out, and crush them into 50-mesh powder with crushing equipment for later use.
[0019] 2) Fill the powder prepared in (l) into a twin-screw cold press to extract oil, and filter to obtain seashore mallow seed crude oil.
[0020] 3) Carry out the first molecular distillation of seashore mallow seed crude oil obtained in (2), set the scraping film speed to 289r / min, cooling water temperature to 12°C, distillation temperature to 50°C, distillation pressure to 0.11 kPa, and material flow rate 14 mL / min. The primary seaside mallow seed essential oil is finally obtained in the heavy phase collection tank.
[0021] 4) Carry out the second molecular distillation of the primary seaside mallow seed essential oil obtained in (3), reset the scraping film speed to 300 r / min, cooling water temperature to 12 °C, distillation temperature to 55 °C, distillation pres...
Embodiment 2
[0023] 1) Remove impurities and shells from seaside mallow seeds, put them in an oven at 60 ℃ for 4 hours, take them out, and crush them into 45-mesh powder with crushing equipment for later use.
[0024] 2) Fill the powder prepared in (l) into a twin-screw cold press to extract oil, and filter to obtain seashore mallow seed crude oil.
[0025] 3) Carry out the first molecular distillation of seashore mallow seed crude oil obtained in (2), set the scraping film speed to 460 r / min, the cooling water temperature to 35 °C, the distillation temperature to 75 °C, the distillation pressure to 0.21 kPa, and the material Flow rate 8 mL / min. The primary seaside mallow seed essential oil is finally obtained in the heavy phase collection tank.
[0026] 4) Carry out the second molecular distillation of the essential oil obtained in (3), reset the scraping film speed to 480 r / min, the cooling water temperature to 30 °C, the distillation temperature to 70 °C, the distillation pressure to 0...
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