Preparation Process of Rose Essential Oil
A technology for rose essential oil and preparation process, which is applied in the directions of essential oil/spice, fat production, etc., can solve problems such as low extraction rate of essential oil, and achieve the effects of simple operation, improved acquisition rate and low cost
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[0021] A kind of preparation technology of rose essential oil of the present invention, specifically implement according to the following steps:
[0022] Step 1, taking freshly picked rose petals, air-drying them naturally until the water content is less than 20%, to obtain dried roses, then crushing the dried roses to a particle size of 5-10 meshes, and then mixing the crushed dried roses with dipropylene glycol The mass ratio of 1:5-10 is mixed, and extracted by heating and refluxing to obtain the rose extract;
[0023] Step 2, add deionized water with 0.2 to 0.3 times the mass of fresh rose petals into the still, then add the rose extract obtained in step 1 into the still, directly pass steam into the still to raise the temperature to 95°C-98°C, The steam pressure is controlled at 0.05-0.08MPa, and then the steam is stopped and changed to an indirect heating method outside the inner shell of the still so that the temperature of the condensation port of the still is maintain...
Embodiment 1
[0029] A kind of preparation technology of rose essential oil, specifically implement according to the following steps:
[0030] Step 1, take freshly picked rose petals, air-dry them naturally until the water content is less than 20%, and make dried roses, then crush the dried roses to a particle size of 5 mesh, then mix the dried roses with dipropylene glycol by 1: The mass ratio of 5 is mixed, and extracted by heating and refluxing to obtain the rose extract;
[0031] Step 2, add deionized water of 0.2 times the mass of fresh rose petals into the still, then add the rose extract obtained in step 1 into the still, directly pass steam into the still to raise the temperature to 95°C, and control the steam pressure at 0.05 MPa, then stop steaming and change to an indirect heating method outside the inner shell of the still so that the temperature of the condensation port of the still is maintained at 25°C to obtain a mixture of rose oil and rose hydrosol and a distillation resid...
Embodiment 2
[0037] A kind of preparation technology of rose essential oil, specifically implement according to the following steps:
[0038] Step 1, take freshly picked rose petals, air-dry them naturally until the water content is less than 20%, and make dried roses, then crush the dried roses to a particle size of 10 mesh, then mix the dried roses with dipropylene glycol by 1: The mass ratio of 10 is mixed, and extracted by heating and refluxing to obtain the rose extract;
[0039] Step 2, add deionized water with 0.3 times the mass of fresh rose petals into the still, then add the rose extract obtained in step 1 into the still, directly pass steam into the still to raise the temperature to 98°C, and control the steam pressure at 0.08 MPa, then stop steaming and change to an indirect heating method outside the inner shell of the still so that the temperature of the condensation port of the still is maintained at 38°C to obtain a mixture of rose oil and rose hydrosol and a distillation r...
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