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A kind of gastrodia elata variable temperature drying method

A technology of changing temperature and drying, gastrodia elata, applied in pharmaceutical formulations, food science, plant raw materials, etc., can solve the problems of small steaming or cooking scale, sulfur pollution of gastrodia elata, loss of gastrodin, etc., to avoid rapid loss, avoid sulfur The effect of pollution and wrinkle reduction

Active Publication Date: 2017-11-10
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] There are three disadvantages in this method: (1) small workshop production, low degree of mechanization, small scale of steaming or boiling, and the serious loss of gastrodin caused by cooking; (2) the drying process lasts for 20-30 days; (3) The long drying process leads to the need to add sulfur to achieve the purpose of anticorrosion and bleaching, resulting in sulfur pollution of Gastrodia elata

Method used

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  • A kind of gastrodia elata variable temperature drying method
  • A kind of gastrodia elata variable temperature drying method
  • A kind of gastrodia elata variable temperature drying method

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Wash the fresh Gastrodia elata, select a single Gastrodia elata with a weight of less than 80 g, and steam it in a tilting cooking pot at 90°C for 2 minutes, so that the steamed Gastrodia elata is just right, and there is no white heart in the light; Spread it flat on a cooling rack at room temperature, and dissipate heat for 12 hours, so that the temperature of the steamed Gastrodia elata drops to room temperature, and the epidermis is dry and free of moisture; the cooled Gastrodia elata is dried in a Chinese herbal medicine dryer, using a variable temperature drying method, and the initial temperature is 20 After 24 hours, the temperature was evenly raised to 40°C at a rate of 2°C every 6 hours, the temperature was stabilized for 12 hours, and then the temperature was evenly raised to 50°C at a rate of 5°C every 12 hours until dry, which took 7 days Complete drying, drying process time-temperature curve such as image 3 As shown, the surface of Gastrodia elata after d...

Embodiment 2

[0027] Wash the fresh gastrodia elata, select a single gastrodia elata with a weight of 80-150 g, and steam it in a tilting cooking pot at 95°C for 6 minutes, so that the steamed gastrodia elata just passes through the heart, and there is no white heart in the light; the steamed gastrodia elata Gastrodia elata was spread flat on a cooling rack at room temperature, and radiated for 24 hours, so that the temperature of steamed Gastrodia elata dropped to room temperature, and the epidermis was dry and free of moisture; the cooled gastrodia elata was dried in a Chinese herbal medicine dryer, using a variable temperature drying method, and the initial The temperature was 25°C, and after 30 hours, the temperature was raised to 45°C at a rate of 2°C every 6 hours, and the temperature was stabilized for 18 hours, and then the temperature was raised to 55°C at a rate of 5°C every 12 hours until it was dry. It takes 8 days to complete the drying. After drying, the surface of Gastrodia el...

Embodiment 3

[0029] Wash the fresh gastrodia elata, select a gastrodia elata with a single weight of more than 150 g, and steam it in a tilting cooking pot at 100°C for 16 minutes, so that the steamed gastrodia elata is just right, and there is no white heart in the light; the steamed gastrodia elata Spread it flat on a cooling rack at room temperature, and dissipate heat for 24-30 hours, so that the temperature of the steamed Gastrodia elata drops to room temperature, and the epidermis is dry and free of moisture; the cooled Gastrodia elata is placed in a Chinese herbal medicine dryer to dry, and the temperature-changing drying method is adopted. The initial temperature was 30°C, and after 36 hours, the temperature was raised to 50°C at a rate of 2°C every 6 hours, and the temperature was stabilized for 24 hours, and then the temperature was raised to 60°C at a rate of 5°C every 12 hours until it was dry, which took 9 days ; After drying, the surface of Gastrodia elata is smooth and wrinkl...

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Abstract

The invention discloses a gastrodia elata drying method at variable temperature, belonging to the technical field of primary processing of medicinal plants; the method mainly includes the following steps: steaming of fresh gastrodia elata, cooling at room temperature after steaming to lose water and variable temperature drying; Compared with the traditional method, Gastrodia elata is graded according to weight and steamed separately, which solves the problem that gastrodia elata with large weight differences cannot be steamed at the same time, and prevents the problem of insufficient cutting or steaming. The drying temperature is from low to high. The temperature rises slowly to avoid the rapid loss of Gastrodia elata moisture, thereby reducing the folds of the Gastrodia elata epidermis. While ensuring the external and internal quality of Gastrodia elata, the drying time is shortened by 10-15 days compared with traditional methods, especially eliminating any chemicals, especially sulfur. The use of coal or the pollution of sulfur in coal combustion increases the content of gastrodin in Gastrodia elata by more than 5% compared with traditional drying methods.

Description

technical field [0001] The invention discloses a temperature-variable drying method for Gastrodia elata, which belongs to the technical field of primary processing of medicinal plants. Background technique [0002] Gastrodiaelata (Gastrodiaelata BL.) is a vegetative perennial herb of the Orchidaceae fungus. It is a traditional Chinese medicinal material in my country. The part used as a medicine is its dry tuber. Numbness, infantile convulsions, epilepsy and convulsions, and tetanus are all recorded in "Shen Nong's Materia Medica", "Bie Lu of Famous Doctors", and "Plant Research on Plant Names and Facts". [0003] The main medicinal ingredients in Gastrodia elata are gastrodin and Gastrodia elata polysaccharide, so increasing the content of gastrodin and Gastrodia elata polysaccharide is an important way to improve the quality of Gastrodia elata. [0004] The main processing method of Gastrodia elata at present is: wash the fresh Gastrodia elata after harvesting, steam in a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L19/15A61K36/8988
Inventor 杨野崔秀明葛进代超刘大会王承潇杨晓艳
Owner KUNMING UNIV OF SCI & TECH
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