Food/Medicine Freeze Dryer
Size: from 0.5 to 200m²
Highlight: can be customized
Warranty:one year
Food/Medicine Freeze Dryer
Food/Medicine Freeze Dryer: The Difference Between Fresh Rehmannia and Freeze-dried Rehmannia
Freeze-drying technology is a relatively effective preservation technology, and it is gradually applied in the field of Chinese herbal medicines. Freeze-drying technology can well preserve the original color, aroma, shape, taste and other original characters and qualities of medicinal materials, as well as the effective ingredients. Next, the food freeze dryer manufacturers will talk to you about the difference between fresh rehmannia and freeze-dried rehmannia.
Fresh Rehmannia, raw Rehmannia, and Rehmannia glutinosa are commonly used in clinical rehmannia. During the processing, iridoid glycosides are easily hydrolyzed, and at the same time, they become tough and difficult to break after processing, which limits their clinical use.
The freeze-drying technology can effectively solve this problem. After freeze-drying, the hydrolysis of the active ingredient iridoid glycosides can be inhibited, and the color is bright and the texture is loose.

Some studies have analyzed the HPLC fingerprints of freeze-dried Rehmannia glutinosa and raw Rehmannia glutinosa, and found that the difference between the two is mainly due to the difference in the content of chemical components, indicating that freeze-dried Rehmannia glutinosa can effectively retain active ingredients than raw Rehmannia glutinosa. Catalpol, as one of the representative components of iridoid glycosides, has the highest mass fraction in fresh Rehmannia glutinosa under vacuum freezing conditions. Therefore, in order to retain the active ingredients to the greatest extent and improve the efficacy, it should be processed and dried under vacuum and low temperature conditions. Rehmannia glutinosa, which proves the advantages of freeze-drying technology from the side.
Food/Medicine Freeze Dryer: Comparison of freeze-dried ginseng tablets and drying. As a precious Chinese medicinal material in China, ginseng is currently dried or dried in the sun. However, drying is affected by natural conditions, and the removal of water is insufficient. Because drying is in a high temperature environment, its medicinal components are easy to be dried. Decomposition loss.
Studies have shown that compared with other drying methods, freeze-dried ginseng prepared by medicinal material freeze-drying machine in a low-temperature vacuum environment is not only better than raw sun-dried ginseng and red ginseng in shape, color, smell and taste, but also can improve biological properties and Inclusions within the tissue remain intact with little loss of nutrients. The freeze-drying process of fresh ginseng and the changes of saponins components were studied. The results showed that the saponins components of ginseng tablets after dehydration by freeze-drying were basically unchanged compared with fresh products.
Parameter:
Model | KFD-20 | KFD-25 | KFD-30 | KFD-40 | KFD-50 | KFD-100 | KFD-150 | KFD-200 |
Capacity (Kg/Batch) | 200 | 250 | 300 | 400 | 500 | 1000 | 1500 | 2000 |
Shelf Area (㎡) | 20 | 25 | 400 | 40 | 52 | 102 | 152 | 201 |
Shelf Size (Mm) | 2200*600 | 2200*600 | 3300*600 | 3300*600 | 3300*600 | 5000*600 | 10000*600 | 9900*600 |
Shelf Quantity (Layer) | 8+1 | 10+1 | 8+1 | 10+1 | 13+1 | 17+1 | 13+1 | 17+1 |
Shelf Quantity (Piece) | 18 | 22 | 18 | 18 | 28 | 36 | 28 | 36 |
Space Between(Mm) | 95 | |||||||
Shelf Temperature (℃) | room to 120 | |||||||
Water Catcher Temper (℃) | -65±5 | |||||||
Max Catch Water(Kg) | 300 | 380 | 450 | 600 | 750 | 1500 | 2200 | 3000 |
Ultimate Vacuum (Pa) | 5 | |||||||
Electricity(Kw) | 63 | 72 | 101 | 116 | 168 | 232 | 287 | 384 |
Pre-sale:
* As soon as we get your inquiry, we will always reply to your email on time and try our best to recommend you the most suitable freeze dryer. Detailed tech info will also be provided for you.
* We can do sample tests for customers.
After-sale:
* If possible, please do come to our factory and we will teach workers the whole process of freeze-drying. The most appropriate time needed for freeze-drying will be tested by us.
* We will keep in touch with you, to make sure every part of the freeze dryer works well. One-year warranty, free online service for abroad customers.


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