Three Method Drying Chinese Herb Medicine

Online, July 25, 2013 (Newswire.com) - As a gem of Chinese culture for thousands of years history, Chinese herb medicine still occupies an important role in the development of Chinese medicine industry. It has unique advantages in conditioning human's body compared with the western medicine due to the prominent features of less noxious, side effect and treating both manifestation and root cause of disease.Nowadays microwave technology are widely used in various fields so does in Chinese herb medicine.

The Chinese herb medicine are usually dried to keep their medicinal components and extend the shelf life after being collected. with the Chinese herb medicine development The herb's drying has a long history in China. The Chinese herbal medicine has the features of heat sensitivity, oxidability and lucifuge because it contains alkaloid, saponins, anthraquinone, flavonoid, volatile oil etc. This increases the difficulty to ensure the drying quality. Now the researches about the Chinese herb medicine drying process are concentrated on the comparison between traditional drying method and modern drying technology and in the seeking of new efficient drying method.

Traditional Sun Drying Method: Sun drying is the traditional method for reducing the moisture content (MC) of herbal by spreading the herbal in the sun.It has a long history and has still been used. it needs long drying time, Not possible during rain and at night. Any delay leads to excess respiration and fungal growth causing losses and yellowing. Labor intensive and has limited capacity. Temperature control is difficult. Overheating drying of herbal can result in low quality and lose much active ingredients .it is only suitable for the herbs with less additional value.

Traditional Oven-drying Method: use high temperature and high pressure to sterilize the medicine, which not only needs large area workshop but also needs to equipment with expensive air conditioning equipment. In addition,use high temperature and high pressure to sterilize. It transforms the heat power from the exterior to the interior. Herbs cannot be heated evenly within a short time. Researches show that the herb's structure is not suitable to the high temperature drying. So the herbal medicine after high temperature loses the active ingredients which may destroy the medicine efficacy and value in some extent. This not only can not heal people but also has damage to the health.

New Technology Microwave Drying Method:With new technology development now microwave techniques have applied in the drying, sterilization as well as extraction processing for Chinese herb medicine . The microwave is kind of electromagnetic wave with strong penetrability. During the heating process the herbs themselves become the heating source and then absorb the microwave energy both interior and exterior. so the Chinese herb medicine can be dried evenly and thoroughly within a very short time and keeps the original properties and color ,at the same time, due to the low temperature microwave drying. microwave drying equipment can finish drying and sterilization process simultaneously . It can kill the microorganism and bacteria to prevent the mildew during storage and extend the shelf life. The microwave drying technology not only covers the traditional drying method's shortages of long drying time, much energy cost and labor cost, drying herb low quality but also shows its prominent features of drying and sterilizing evenly, thoroughly. It appropriately meets the Chinese herbal medicine's drying requirements and also fits the environmental protection theme.

Azeus produce the industrial microwave drying equipment for Chinese herbal medicine by adopting the microwave drying method, it can help you reach drying in short time and with good drying effect. If you are interested in herb medicine processing industry, and feel herb medicine drying is a difficult problem to be solved, please feel free to contact us. We offer high quality microwave drying equipment and our professional technicians are willing to give you professional guidance and suggestions.