A kind of corn silk effervescent solid beverage and preparation method thereof
A technology for solid beverages and corn silk, which is applied in the directions of food ingredients containing natural extracts, functions of food components, food science, etc. and improve the effects of diabetes complications, rapid dissolution, and lowering blood sugar
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Embodiment 1
[0022] Example 1 Preparation of corn silk extract by ultrasonic-assisted semi-bionic method
[0023] A. After the corn silk is cleaned and dried, add 10 times the weight of corn silk to the aqueous solution of pH 7.5 for ultrasonic extraction. The aqueous solution with pH 8.3 was ultrasonicated for 1 hour, filtered, and the obtained filtrates were combined and concentrated under reduced pressure to obtain a liquid corn silk extract; the liquid corn silk extract could be used as a raw material for preparing its solid beverage.
[0024] B is: the concentrated solution obtained in step A is frozen at -80°C for 24 hours, and then freeze-dried at -48°C and an air pressure of 0.05mbar for 48 hours, crushed through a 60-mesh sieve, and made into a freeze-dried powder; this freeze-dried powder is also It can be used as a raw material for preparing its solid beverage.
Embodiment 2
[0025] Example 2 Preparation of corn silk extract by ultrasonic-assisted semi-bionic method
[0026] A After the corn silk is cleaned and dried, add 20 times the aqueous solution of the corn silk weight to carry out ultrasonic extraction. The aqueous solution at pH 8.1 was ultrasonicated for 0.5 hours, filtered, combined and extracted filtrates, and concentrated under reduced pressure to obtain a liquid corn silk extract; this liquid corn silk extract can be used as a raw material for preparing its solid beverage.
[0027] B is: the concentrated solution obtained in step A is frozen at -60°C for 36 hours, and then freeze-dried at -60°C and an air pressure of 0.05mbar for 72 hours, crushed through a 60-mesh sieve, and made into a freeze-dried powder; this freeze-dried powder is also It can be used as a raw material for preparing its solid beverage.
Embodiment 3
[0028] Example 3 heating reflux method to prepare corn silk extract
[0029] A. After the corn silk is cleaned and dried, the corn silk is extracted twice with 10 times the weight of water heating and refluxing, each time for 1 hour, the extracts are combined, and the corn silk extract is obtained by concentrating under reduced pressure; this extract can be used to prepare its solid beverage raw materials.
[0030] B is: the concentrated solution obtained in step A is frozen at -80°C for 24 hours, and then freeze-dried at -48°C and an air pressure of 0.05mbar for 48 hours, crushed through a 60-mesh sieve, and made into a freeze-dried powder; this freeze-dried powder is also It can be used as a raw material for preparing its solid beverage.
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