Method for extracting phlorizin from litchi pericarp
A technology of litchi shell and phlorizin, which is applied in chemical instruments and methods, preparation of sugar derivatives, production of bulk chemicals, etc., can solve problems such as inability to realize industrialized production, high labor intensity, and long extraction time, and achieve shortened extraction Separation time, reduced production cost, and simple operation
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Embodiment 1
[0020] Example 1: The method for extracting phlorizin from lychee shell includes the following steps:
[0021] (1) Drying: After collecting fresh lychee shells from May to July each year and removing impurities, they are dried in an oven at 40-70°C with moisture content ≤10%;
[0022] (2) Crushing: The dried litchi shells are crushed through a 40-mesh sieve;
[0023] (3) The 10KG litchi shell powder after the above treatment is transferred to the extraction kettle of the continuous phase change extraction device, and 35L n-butane is passed into it. Under the condition that the critical pressure and critical temperature of the extractant are always lower, the high-pressure pump The extractant is compressed into a liquid, and phlorizin is extracted through the reactor at a flow rate of 15L / h, and then enters the analysis kettle. The extractant is transformed into a gas by decompression, and then compressed into a liquid into the extraction kettle. The material is extracted again, and ...
Embodiment 2
[0025] Example 2: The method for extracting phlorizin from lychee shell includes the following steps:
[0026] (1) Drying: After collecting fresh lychee shells from May to July each year and removing impurities, they are dried in an oven at 40-70°C with moisture content ≤10%;
[0027] (2) Crushing: The dried litchi shells are crushed through a 40-mesh sieve;
[0028] (3) The 10KG litchi shell powder after the above treatment is transferred to the extraction kettle of the continuous phase change extraction device, and 35L propane is passed into it. Under the condition that the critical pressure and critical temperature of the extractant are always lower than the critical pressure and the critical temperature, the high-pressure pump will extract The phlorizin is extracted into a liquid through the reactor at a flow rate of 20L / h, and then enters the analysis kettle. The extractant is transformed into a gas by decompression, and then compressed into a liquid into the extraction kettle. ...
Embodiment 3
[0029] Example 3: The method for extracting phlorizin from lychee shell includes the following steps:
[0030] (1) Drying: After collecting fresh lychee shells from May to July each year and removing impurities, they are dried in an oven at 40-70°C with moisture content ≤10%;
[0031] (2) Crushing: The dried litchi shells are crushed through a 40-mesh sieve;
[0032] (3) The 10KG litchi shell powder after the above treatment is transferred to the extraction kettle of the continuous phase change extraction device, and 30L isobutane is passed into it. Under the condition that the critical pressure and critical temperature of the extractant are always lower than the critical pressure and the critical temperature, the high-pressure pump The extractant is compressed into a liquid, and phlorizin is extracted through the reactor at a flow rate of 15L / h, and then enters the analysis kettle. The extractant is transformed into a gas by decompression, and then compressed into a liquid into the ...
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