Rhizoma dioscoreae drying method
A drying method, the technology of yam, applied in the direction of dehydration preservation of fruits/vegetables, food processing, etc., can solve the problems of limiting the application of dry products, not being able to produce on a large scale, and reducing the quality of medicinal products, so as to achieve short service life of power consumption equipment, The effect of low power consumption and low equipment usage requirements
Inactive Publication Date: 2016-11-09
乔婷
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Problems solved by technology
However, due to the crushing and slicing of yam, the skin of the medicinal material is destroyed, and the medicinal quality is obviously reduced. When it is used as a food material, it is usually ground and applied, which is difficult to use as a raw material for making dishes, which limits the application of dry products.
In addition, this method adopts the freeze-vacuum drying method, and freezing will "bind" the water flow in the yam, which will significantly reduce the degree of drying. At the same time, vacuum freeze-drying consumes a lot of power, which is not conducive to environmental protection. The production cost is relatively high, and it cannot be mass-produced
Method used
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Embodiment 1
[0018] In 2014, 10.1kg of fresh Pingliang yam was purchased and harvested for testing, including the following steps:
[0019] 1. Characteristics of Pingliang yam: Pingliang yam is a local quality of Pingliang. It has been cultivated for more than 400 years. Phenoloxidase and other unique medicinal ingredients; the tubers are fat, 40-70cm long, and the transverse stem is 4-6cm.
[0020] 2. Detection before drying: 0.1 kg of fresh yam purchased at random is tested, and the test results are shown in Table 1 below.
[0021] Table 1 - Chemical composition of Pingliang fresh yam
[0022]
[0023] 3. Drying method: Divide the yam into a test group and a control group. The weight of the test group is 5kg;
[0024] 1) Pre-drying treatment: After the fresh yam is removed from the soil and washed, it is spread on a dry and clean cotton cloth, placed in a ventilated and cool place, and pre-dried for 24 to 36 hours until the water content is lower than 30%. Among them, The temperatu...
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Abstract
The invention discloses a rhizoma dioscoreae drying method. The method comprises the steps of pre-drying rhizoma dioscoreae at a shady and ventilating place first, then conducting stir-frying drying with a drying compound formed by mixing of clean river sand, calcium chloride and cobblestone powder, conducting moisture regain treatment to promote redistribution of moisture and free nutritional ingredients, and finally conducting vacuum drying and paving attapulgite in a vacuum box. According to the method, fresh rhizoma dioscoreae is not sliced, so that the integrity and quality of medicine are maintained; compared with vacuum freeze drying, drying speed is higher, dewatering effect is better and power consumption is much lower by the adoption of stir-frying drying; furthermore, the method can be used for large-scale drying production.
Description
technical field [0001] The invention belongs to the technical field of processing traditional Chinese medicinal materials, and in particular relates to a drying method of Chinese yam. Background technique [0002] Yam is a kind of homologous food of medicine and food, which has extremely high medicinal function and nutritional value. It is used as medicine with rhizomes, flat in nature and sweet in taste; it returns to the spleen, lung and kidney meridians. It has the functions of invigorating the spleen and nourishing the stomach, promoting body fluid and benefiting the lungs, tonifying the kidney and astringent essence, etc. It is mainly used to treat the symptoms of spleen deficiency, lack of food, chronic diarrhea, lung deficiency, asthma and cough, kidney deficiency, nocturnal emission, leukorrhea, frequent urination, deficiency heat and thirst. Fresh yams are not suitable for long-term storage. Usually, yams are dehydrated and dried to prolong the shelf life. However...
Claims
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Patent Timeline
Login to View More IPC IPC(8): A23B7/02
CPCA23B7/02Y02P60/85
Inventor 乔婷
Owner 乔婷