Preparation method of rose perfume
A technology of roses and spices, applied in the direction of essential oils/fragrances, fat production, etc., which can solve the problems of cumbersome and complicated steps of rose spices, and the fragrance is not mellow, and achieve simple preparation methods, high content of aroma substances, and fresh and mellow aroma Effect
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Embodiment 1
[0016] Embodiment one: a kind of preparation method of rose spice, comprises the steps:
[0017] (1) Raw material pretreatment: pre-freezing temperature -30°C, vacuum degree 0.092MPa, microwave power 6 watts, make the water content of the raw material 5.5%, complete drying, and crush the dried raw material into 40-mesh fine particles;
[0018] (2) Supercritical extraction: put crushed rose raw materials into the extraction kettle of supercritical extraction equipment, and perform supercritical carbon dioxide extraction in stages. The temperature of the extraction kettle is 35°C, and the flow rate of carbon dioxide is 17 liters / minute. After the supercritical carbon dioxide extraction is finished, take out the rose flower extract in the separation kettle of the supercritical extraction equipment, the temperature of the separation kettle is 53°C, and the pressure of the separation kettle is 5.0Mpa;
[0019] Supercritical extraction is divided into four stages according to the ex...
Embodiment 2
[0023] Embodiment two: a kind of preparation method of rose spice, comprises the steps:
[0024] (1) Raw material pretreatment: carry out microwave vacuum freeze-drying on fresh roses, the pre-freezing temperature is -20°C, the vacuum degree is 0.01MPa, and the microwave power is 8 watts, so that the water content of the raw material is 7.5%, and the drying is completed. The final raw material is crushed into 60 mesh fine particles;
[0025] (2) Supercritical extraction: put the crushed rose raw materials into the extraction kettle of the supercritical extraction equipment, and perform supercritical carbon dioxide extraction in stages. The temperature of the extraction kettle is 50°C, and the flow rate of carbon dioxide is 23 liters / minute. After the supercritical carbon dioxide extraction is finished, take out the rose flower extract in the separation kettle of the supercritical extraction equipment, the temperature of the separation kettle is 58°C, and the pressure of the se...
Embodiment 3
[0030] Embodiment three: a kind of preparation method of rose spice, comprises the steps:
[0031] (1) Raw material pretreatment: carry out microwave vacuum freeze-drying on fresh roses. The raw materials are crushed into 50 mesh fine particles;
[0032] (2) Supercritical extraction: Put the crushed rose raw materials into the extraction kettle of the supercritical extraction equipment, and perform supercritical carbon dioxide extraction in stages. The temperature of the extraction kettle is 40°C, and the flow rate of carbon dioxide is 20 liters / minute. After the supercritical carbon dioxide extraction is finished, take out the rose flower extract in the separation kettle of the supercritical extraction equipment, the temperature of the separation kettle is 55°C, and the pressure of the separation kettle is 5.2Mpa;
[0033] Supercritical extraction is divided into four stages according to the extraction pressure: the first stage: the extraction pressure is 11Mpa, the extracti...
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