A kind of preparation method of citral diacetal natural fragrance
A technology of citral diethyl acetal and natural fragrances, which is applied in the direction of essential oils/fragrances, fat production, etc., can solve the problems of citral-type plant essential oils, such as easy to deteriorate, odor, and poor quality, and achieve storage resistance, good aroma, and consumption. can low effect
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Embodiment 1
[0029] The method for preparing natural spices containing citral diethyl acetal by using citronella raw material comprises the following steps:
[0030] (1) After the citronella grass is picked and removed, cut it into sections to 5cm, put it in a still, add ethanol and water to the still pot to submerge the raw materials, the addition of the ethanol is 8% of the weight of the citronella grass, and then add Toluenesulfonic acid regulates the pH of the aqueous ethanol solution to 3.5; the distillation pot is a stainless steel pot, the top of the distillation pot is connected with the condenser and the oil-water separator in turn, and a heating coil is installed at the bottom of the distillation pot, through which the distillation The ethanol aqueous solution in the pot is heated;
[0031] (2) Heat to boil the water in the distillation pot for 2 hours, the generated water vapor will take the essential oil out, enter the condenser to condense, and then enter the oil-water separat...
Embodiment 2
[0041] The method for preparing the natural fragrance containing citral diethyl acetal by utilizing the litsea cubeba raw material comprises the following steps:
[0042](1) After picking Litsea cubeba and removing impurities, put it in a still, add ethanol and water to the still to submerge the raw materials, the amount of ethanol added is 20% of the weight of Litsea cubeba, and then add formic acid to adjust the ethanol The pH of the aqueous solution is to 4.5; the distillation pot is a stainless steel pot, and the top of the distillation pot is connected with a condenser and an oil-water separator in turn, and a heating coil is installed at the bottom of the pot in the distillation pot, and the ethanol aqueous solution in the distillation pot is supplied by the heating coil to heat;
[0043] (2) Heat to boil the water in the distillation pot for 1.5 hours, the generated water vapor will take out the essential oil, enter the condenser to condense, and then enter the oil-wate...
Embodiment 3
[0053] The method for preparing the natural fragrance containing citral diethyl acetal by utilizing the litsea cubeba raw material comprises the following steps:
[0054] (1) After picking Litsea cubeba and removing impurities, put it in a still, add ethanol and water to the still to submerge the raw materials, the amount of ethanol added is 10% of the weight of Litsea cubeba, and then add acetic acid to adjust the ethanol The pH of the aqueous solution is up to 6; the distillation pot is a stainless steel pot, and the top of the distillation pot is connected with the condenser and the oil-water separator in turn, and a heating coil is installed at the bottom of the pot in the distillation pot, and the ethanol aqueous solution in the distillation pot is supplied by the heating coil to heat;
[0055] (2) Heat to make the water in the distillation pot boil for 2.5 hours, the generated water vapor will take out the essential oil, enter the condenser to condense, and then enter th...
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