Sucrose seed crystal and preparation method thereof
A technology of sucrose crystals and sucrose, which is applied in the field of sucrose seed crystals and its preparation, and can solve problems such as uneven particle size of crystallized products, uneven crystal shape, and easy preservation of colored substances
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preparation example Construction
[0024] The connection relationship structure diagram of the preparation system of the sucrose seed crystal in the embodiment is as follows figure 1 As shown, wherein 1-sugar solution tank, 2-jacket concentration device, 3-ultrasonic treatment device, 4-centrifugal separation device, 5-seed crystal collection device, 6-low temperature bath, 7-ethanol tank. The jacket concentration device 2 is connected to the low temperature bath 6 , and the ultrasonic treatment device 3 is connected to the ethanol tank 7 .
[0025] The temperature not specified in the examples refers to the normal temperature of 10-40°C.
Embodiment 1
[0027] A kind of preparation method of sucrose seed crystal of the present embodiment, concrete steps are as follows:
[0028] (1) dissolving white granulated sugar with a sucrose content of ≥99.8% in water to form a sugar solution with a mass concentration of 50%, and then concentrating the sugar solution at -10°C to obtain a concentrated sugar solution with a sucrose mass concentration of 82% ;
[0029] (2) Add 1 times the quality of ethanol to the concentrated sugar solution in step (1), and use 0.1W / cm 2 , the ultrasonic frequency is 2×10 4 Hz ultrasonic treatment for 120s, then filtered, collected and dispersed in ethanol solution for preservation at a temperature of 10°C to obtain sucrose seed crystals. The sucrose seed prepared by the present embodiment is observed under a microscope (see figure 2 ), the edges and corners are clear, the surface is smooth, the particle size is in the range of 12-20 μm as measured by the particle size analyzer, and the sucrose content...
Embodiment 2
[0033] A kind of preparation method of sucrose seed crystal of the present embodiment, concrete steps are as follows:
[0034] (1) dissolving white granulated sugar with a sucrose content of ≥99.8% in water to form a sugar solution with a mass concentration of 60%, and then concentrating the sugar solution at 0°C to obtain a concentrated sugar solution with a sucrose mass concentration of 85%;
[0035] (2) Add 5 times the quality of ethanol to the concentrated sugar solution of step (1), at an ultrasonic intensity of 1W / cm 2 , the ultrasonic frequency is 2×10 6 Hz ultrasonic treatment for 60s, then filtered, collected and dispersed in ethanol solution for preservation at a temperature of 40°C to obtain sucrose seed crystals. The surface of the sucrose crystals prepared in this example is smooth after observation, the particle size is in the range of 10-20 μm as measured by a particle size analyzer, and the sucrose content is greater than or equal to 99.8%; under the same qual...
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