Fragrant pandan extracting solution and preparation method thereof
A technology of extracting liquid and pandan, which is applied in the field of fragrant pandan extract and its preparation, which can solve the problems of short shelf life of pandan juice, complicated process, and large loss of flavor during the process, and achieve the goal of avoiding turbidity and layering, and simple process , The effect of easy control of the process
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[0029] The invention provides a kind of fragrant pandan blue extract and its preparation method, comprising the following steps:
[0030] S101: take fresh pandan leaves, dry at 30-50°C, and pulverize to obtain pandan leaf powder;
[0031] Further, in step S101, a low-temperature dryer is used to dry the pandan leaves at low temperature.
[0032] Further, in step S101, the fresh pandan leaves need to be washed and drained before being dried at low temperature.
[0033] Further, in step S101, the particle size of the pandan leaf powder is 20-60 mesh.
[0034] In the present invention, fresh pandan leaves are dried and pulverized at a low temperature of 30 to 50°C to prepare pandan leaf powder, which retains the color and flavor of fresh pandan leaves to the greatest extent, and is beneficial to improve the final pandan leaf extract. color and flavor quality.
[0035] S102: Add the entraining agent into the pandan leaf powder, and stir to obtain a premix, which is a paste.
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Embodiment 1
[0050] The fragrant pandan blue extract in the present embodiment and preparation method thereof, the steps are as follows:
[0051] (1) Take fresh pandan leaves as a raw material, wash and drain, dry the pandan leaves at a low temperature of 35° C., and then pulverize them to obtain pandan leaf powder with a particle size of 20 to 60 meshes.
[0052] (2) Weighing 1000g of the blue leaf powder, 1000g of alcoholic aqueous solution of 60% mass concentration, slowly adding the aqueous alcohol solution in the blue leaf powder, stirring and mixing to obtain a premix, which is a paste.
[0053] (3) see figure 1 , the carbon dioxide comes out of the carbon dioxide steel cylinder 1, and is filtered by the filter 2 to remove impurities in the carbon dioxide, and the carbon dioxide is cooled to a liquid state through the refrigerator 3, and the liquid carbon dioxide is continuously pumped into the 5L extraction kettle 6 through the carbon dioxide diaphragm pump 4, Make the pressure of ...
Embodiment 2
[0056] The fragrant pandan blue extract in the present embodiment and preparation method thereof, the steps are as follows:
[0057] (1) Take fresh pandan leaves as a raw material, wash and drain, dry the pandan leaves at a low temperature of 35° C., and then pulverize them to obtain pandan leaf powder with a particle size of 20 to 60 meshes.
[0058] (2) Weigh 1000g of the blue leaf powder, 2000g of the alcoholic aqueous solution of 60% mass concentration, slowly add the aqueous alcohol solution in the blue leaf powder, stir and mix to obtain a premix, and the premix is a paste.
[0059] (3) see figure 1 , the carbon dioxide comes out of the carbon dioxide steel cylinder 1, and is filtered by the filter 2 to remove impurities in the carbon dioxide, and the carbon dioxide is cooled to a liquid state through the refrigerator 3, and the liquid carbon dioxide is continuously pumped into the 5L extraction kettle 6 through the carbon dioxide diaphragm pump 4, Make the pressure o...
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