Rose water concentrated liquor processing method
A technology of rose water and processing method, which is applied in the direction of pharmaceutical formulations, cosmetics, skin care preparations, etc., which can solve the problems of high packaging cost and inconvenient transportation, and achieve the effects of less loss of aroma components, difficult preservation and low energy consumption
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Embodiment 1
[0031] according to figure 1 The flow chart of the production process of rose water concentrate is shown. After fresh roses are picked, add 13% salt of fresh flowers and marinate them for 20 days. After mixing with demineralized water at a material-to-liquid mass ratio of 1:2.5, add them to a distillation tank for distillation for 4 h. After the distillate is condensed by the condenser, it enters the oil-water separator to stand still, and the rose water is obtained after the essential oil is separated. Take 50 L of rose water stock solution at room temperature, pass through a microfiltration membrane with a pore size of 0.5 μm to remove suspended particles and bacteria to obtain a microfiltration permeate, and use a nanofiltration filter with a molecular cutoff of 400 Daltons to obtain the microfiltration permeate. The filter membrane is filtered to obtain the nanofiltration permeate, and then the nanofiltration permeate is intercepted by the first-stage reverse osmosis membr...
Embodiment 2
[0033] according to figure 1 The flow chart of the production process of the rose water concentrate is shown. After the fresh roses are picked, add salt with 15% of the flower mass to marinate for 30 days, mix it with demineralized water at a material-to-liquid mass ratio of 1:3, and then add it to the distillation tank for distillation for 3 h. After the distillate is condensed by the condenser, it enters the oil-water separator to stand still, and the rose water is obtained after the essential oil is separated. Take 50 L of rose water at room temperature, pass through a microfiltration membrane with a pore size of 1 μm to remove suspended particles and bacteria to obtain the permeate, and filter the permeate through a nanofiltration membrane with a molecular cutoff of 500 Daltons to obtain nano Filtrate the permeate, and then pass the nanofiltration permeate through the first-stage reverse osmosis membrane under the operating pressure of 1-2 MPa. Under the operating pressur...
Embodiment 3
[0036]After fresh roses are picked, add salt with 17% of the mass of flowers and marinate them for 50 days, mix them with demineralized water at a ratio of 1:4 to liquid, add them to a distillation tank for distillation for 2.5 hours, and the distillate is condensed by a condenser and then enters an oil-water separator for standing , rose water is obtained after the essential oil is separated. Take 50 L of rose water at room temperature, pass through a microfiltration membrane with a pore size of 2 μm to remove suspended particles and bacteria to obtain the permeate, and filter the permeate through a nanofiltration membrane with a molecular cutoff of 600 Daltons to obtain nano Filtrate the permeate, and then pass the nanofiltration permeate through the interception of the primary reverse osmosis membrane under the operating pressure of 1~2 MPa. Under the operating pressure of 4 MPa, it is input into the secondary reverse osmosis system for circulation, and the intercepted liqu...
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