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Processing clean medicinal herbs is a promising direction, but if it is still exposed to sunlight or heat, it is easy to lose the valuable active ingredients in medicinal plants. That not only reduces the effectiveness of treatment but also makes it difficult for the product to meet the standards to be sold in the high-end market.
The freeze dryers to preserve active medicinal ingredients of medicinal herbs was born as a reasonable solution: it both preserves the color, aroma and medicinal properties, and helps increase the value of the product. For those who are making clean medicinal herbs, this is the trend that needs to be invested in if they want to develop sustainably and aim for export.
MỤC LỤC
What is a freeze dryer? How does it work?
What is a freeze dryer?
A freeze dryer is a drying device that uses low temperature technology (usually 25–50°C), helping to preserve the color, aroma and especially the active ingredients in medicinal herbs or food. Unlike traditional heat drying that easily loses nutrients, a freeze dryer operates in a cool environment, similar to natural conditions but is more precisely controlled.
Working principle of freeze dryer
The machine operates on the mechanism of separating moisture with circulating dry air:
- The air is cooled to condense the moisture.
- Dry air is then gently heated and blown through the material.
- Water vapor in the raw material escapes with the air → the raw material is gradually dried without being over-dried like heat drying.
Thanks to low temperature and controlled humidity, the active ingredients in medicinal herbs do not decompose, the cell structure is less broken, the dried product still retains its beautiful color, natural aroma, and can be preserved for a long time.
Why can freeze dryer preserve active medicinal ingredients?
Heat pump food dryer are capable of preserving active medicinal ingredients by operating at low temperatures, usually ranging from 25–50°C. This is the ideal temperature range to help preserve the structure of easily decomposed active ingredients such as flavonoids, saponins, alkaloids or essential oils – the components that determine the medicinal properties of herbs. Unlike traditional heat drying, which often causes active ingredients to change, lose color and smell, freeze drying creates a dry, cool environment, limiting the oxidation process and evaporation of essential oils.
In addition, thanks to the use of circulating dry air, the freeze dryer helps to preserve the natural color, characteristic aroma and intact shape of medicinal herbs. This is especially important in the production of herbs such as ginseng, golden flower tea, ginseng, turmeric, artichoke, etc., which are very sensitive to heat.
Many studies have shown that, compared to the heat drying method, the freeze dryer can retain up to 95-98% of the valuable active ingredients in medicinal herbs. Thanks to that, the product not only meets quality standards but also has higher commercial value, making it easier to access export markets and clean medicinal product distribution chains.
Heat pump food dryer SUNSAY!
Benefits of investing in freeze dryers in medicinal processing
Investing in freeze-drying machines in medicinal processing brings many practical benefits, both in terms of product quality and business efficiency. First of all, freeze-drying technology helps to retain almost all the precious active ingredients in medicinal herbs, which means that the dried products meet higher standards in terms of medicinal properties, color and aroma. Thanks to that, the products can easily conquer demanding markets such as Japan, Korea or Europe – where the requirements for purity and inspection standards are very strict.
In terms of production, the freeze dryer operates completely automatically, does not depend on the weather like sun drying, nor does it cause burning, scorching or shrinking of raw materials like heat drying. This helps stabilize quality, save labor, shorten processing time, and reduce the loss of valuable raw materials during the drying process. In addition, freeze-dried medicinal products can be preserved longer, do not get moldy or lose nutrients, significantly reducing post-harvest loss costs.
For businesses that want to develop clean medicinal herbs in a professional manner, investing in a freeze dryer is not only a step towards upgrading technology, but also a long-term strategy to build a brand, enhance product value and expand the consumer market.
Who should invest in a freeze dryer to preserve medicinal ingredients?
- Enterprises processing and exporting medicinal herbs: Need products that meet high standards such as GMP, retain medicinal properties, color and aroma to conquer demanding markets such as Japan, Korea, and Europe.
- Medicinal herbs agricultural cooperative: Desire to be proactive in post-harvest processing, increase product value and reduce dependence on raw material purchasing traders.
- Individuals or groups starting up in the field of clean medicinal herbs: Suitable for small models making herbal tea, turmeric starch, ginseng, cordyceps… where it is necessary to maintain stable quality from the beginning.
- Research institutes, testing centers, pharmaceutical laboratories: Need to dry medicinal samples for analysis, testing or new product development without changing the active ingredients.
- Herbal health food production facility: Need high quality dried medicinal raw materials as input for products such as capsules, instant tea, herbal extracts, medicinal granules, etc.
Notes when choosing to buy a freeze dryer
When choosing a freeze dryer to process medicinal herbs, the first thing to consider is the capacity that is suitable for actual needs. If the machine is too small, it will not meet the output, and if the machine is too large, it will cause waste of investment and unnecessary power consumption.
Next, you need to pay attention to the machine’s ability to control temperature and humidity. This is a key factor in preserving the precious active ingredients in medicinal herbs, so the machine must have a precise, stable and easy-to-use control system.
The material of the machine is also very important, especially the drying chamber – should be made of 304 stainless steel to ensure hygiene and durability. In addition, the machine design needs to be convenient for operation: the drying tray is easy to disassemble, easy to clean, the process of putting in raw materials and taking out products must be quick and time-saving.
One factor that should not be overlooked is the ability to save electricity and operate stably for a long time. A machine with energy-saving technology will help you reduce costs significantly in the long run. At the same time, choose a reputable supplier with a clear warranty policy and ready to provide technical support when needed.
Before deciding to invest, you should refer to feedback from customers who have actually used the machine or go directly to the machine’s operating location to verify the quality.
Contact us for advice and quote
With over 15 years of experience and a commitment to innovation, SUNSAY is a leading manufacturer in the agricultural dryer industry. We provide superior quality dryers at competitive prices, ideal for improving the quality of agricultural products.
SUNSAY is committed to providing customers with agricultural dryers of superior quality. Our dedication to research and technology development helps us create effective drying solutions, ensuring the quality, color and flavor of agricultural products are preserved.
For detailed advice, please visit the website: dryer.com.vn or contact the Hotline (Zalo): 0935 995 035 or call the switchboard: 094 110 8888 for support.
Detailed information about the dryer will be updated during the consultation and discussion process. Therefore, do not hesitate to contact us immediately!
