Leech drying method

A drying method and leech technology are applied in the directions of drying solid materials, drying solid materials without heating, drying, etc., which can solve problems such as large fishy odor and achieve the effect of weakening fishy odor.

Inactive Publication Date: 2018-03-13
广西鹿帅仁生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for drying leeches, which can solve the problem that the existing freeze-dried leech products have a strong fishy smell

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The leech drying method of the present embodiment comprises the following steps:

[0018] 1) Put the leech in clean water and fast for 1 day, rinse it with water, then put it into clean water for ultrasonic shock treatment, the temperature of the treatment is 28°C, the frequency of the ultrasonic wave is 10 MHz, treat it for 30 minutes, and rinse it again;

[0019] 2) Put the leech into the spiral quick freezer for pre-freezing, the pre-freezing temperature is -13°C, and the time is 45 minutes;

[0020] 2) Put the pre-frozen leeches in a vacuum freeze dryer and freeze them at -15°C and -25°C for 30 minutes respectively, then lower the central temperature of the leeches to -28°C to freeze the water in the leeches;

[0021] 3) Vacuumize to 20Pa, then slowly heat up to -20°C within 2h, and keep warm for 0.5h;

[0022] 4) Slowly raise the temperature to 10°C within 2 hours, so that the water content of the leech is below 5%;

[0023] 5) Dry the leeches at a temperature of...

Embodiment 2

[0026] The leech drying method of the present embodiment comprises the following steps:

[0027] 1) Put the leech in clean water and fast for 2 days, rinse it with water, then put it into clean water for ultrasonic shock treatment, the temperature of the treatment is 30°C, the frequency of the ultrasonic wave is 15MHz, treat it for 25 minutes, and rinse it again;

[0028] 2) Put the leech into the spiral quick freezer for pre-freezing, the pre-freezing temperature is -15°C, and the time is 40 minutes;

[0029] 2) Put the pre-frozen leeches in a vacuum freeze dryer and freeze them at -15°C and -25°C for 30 minutes respectively, then lower the central temperature of the leeches to -30°C to freeze the water in the leeches;

[0030] 3) Vacuumize to 15Pa, then slowly raise the temperature to -20°C within 2 hours, and keep it warm for 1 hour;

[0031] 4) Slowly raise the temperature to 10°C within 2 hours, so that the water content of the leech is below 5%;

[0032] 5) Dry the lee...

Embodiment 3

[0035] The leech drying method of the present embodiment comprises the following steps:

[0036] 1) Put the leech in clean water and fast for 2 days, rinse it with water, then put it into clean water for ultrasonic shock treatment, the temperature of the treatment is 30°C, the frequency of ultrasonic wave is 20 MHz, treat it for 20 minutes, and rinse it again;

[0037] 2) Put the leech into the spiral quick freezer for pre-freezing, the pre-freezing temperature is -18°C, and the time is 30 minutes;

[0038] 2) Put the pre-frozen leeches in a vacuum freeze dryer and freeze them at -15°C and -25°C for 30 minutes respectively, then lower the central temperature of the leeches to -32°C to freeze the water in the leeches;

[0039] 3) Vacuumize to 18Pa, then slowly heat up to -20°C within 2 hours, and keep warm for 1 hour;

[0040] 4) Slowly raise the temperature to 10°C within 2 hours, so that the water content of the leech is below 5%;

[0041] 5) Dry the leeches at a temperatur...

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PUM

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Abstract

The invention discloses a leech drying method and relates to the technical field of leech processing. The method comprises the following steps that leeches are put into clear water for fasting, then put into clear water for ultrasonic vibrating treatment after being washed with water, the ultrasonic frequency is 10-20 MHz, treatment is conducted for 20-30 min, and then the leeches are washed again; the leeches are put into a spiral instant freezer for pre-freezing, the pre-frozen leeches are dished up and put into a vacuum freeze dryer to be frozen, and the temperature of the centers of the leeches is lowered to -32 to -28 DEG C, so that moisture in the leeches is frozen; vacuumizing is conducted to 20 Pa or lower, and then the temperature is slowly increased to -20 DEG C in 2 h and preserved for 0.5-1 h; and the temperature is slowly increased to 10 DEG C in 2 h, the leeches are dried, and thus the moisture content of the leeches is 2% or lower. The problem that existing freeze-driedleech products are quite stinky is solved.

Description

technical field [0001] The invention relates to the technical field of leech processing, in particular to a leech drying method. Background technique [0002] Leeches, commonly known as leeches, are the general term for leech animals. It mainly contains protein, fat, sugar, heparin, antithrombin, and also contains essential macroelements (sodium, potassium, calcium, magnesium, etc.) and trace amounts of human body. Elements (iron, manganese, zinc, silicon, aluminum, etc.), taste salty and bitter, and have the functions of breaking blood, removing blood stasis, dredging menstruation, and dispelling stagnation. Clinically, it is effective in treating various diseases caused by blood stasis. The indications involve cardiovascular and cerebrovascular diseases, liver and kidney and blood diseases, traumatic pain and respiratory, nervous system and cancer. Leeches are usually processed into dry products, and then processed into medicine. Most of the existing dried leech products ...

Claims

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Application Information

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IPC IPC(8): F26B7/00F26B5/06F26B23/00A61K35/62
CPCF26B7/00A61K35/62F26B5/06F26B23/00
Inventor 覃海南覃春花
Owner 广西鹿帅仁生物科技有限公司
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