Current Situation and Problem Analysis of Drying Technology and Equipment of Chinese Medicinal Materials and Preparations

[abstract] Microwave drying equipment is the key link in the pharmaceutical process of traditional Chinese medicine, which directly affects the quality of drugs. The development of new drying technology is the key to the transformation and upgrading of the manufacturing industry of traditional Chinese medicine, and is related to the process of modernization of traditional Chinese medicine.

Microwave drying equipment 

This paper summarizes the current research status of drying technology and equipment of traditional Chinese medicines and preparations through literature research and statistics, analyses the traditional drying technology and equipment of traditional Chinese medicines and preparations, probes into some problems existing in drying technology and equipment, and puts forward corresponding countermeasures, and expounds my opinions. The new development trend of drying technology and equipment of Chinese medicinal materials and preparations provides new ideas for the optimization and upgrading of drying technology and equipment of Chinese medicinal materials and preparations.

microwave drying of Chinese medicinal materials

Application of Microwave Drying and Sterilization Technology in Traditional Chinese Medicine

ABSTRACT: Compared with traditional drying methods of traditional Chinese medicine, microwave technology not only has the characteristics of simple operation, fast, good effect, good appearance and low energy consumption, but also has excellent sterilization effect while drying. In this paper, the characteristics and influencing factors of microwave drying equipment and sterilization technology are briefly described. The application of microwave drying technology in the field of traditional Chinese medicine is summarized. The existing problems and prospects of current research on safety (microwave radiation and microwave residues) are put forward.

microwave drying equipment

Key words: microwave drying of traditional Chinese medicine; microwave sterilization; traditional Chinese medicine; microwave radiation; review

Insect borer and mildew are important factors affecting the quality of traditional Chinese medicine, which are caused by high humidity of materials and inappropriate environmental temperature. Therefore, drying and sterilization are an important part of the processing of traditional Chinese medicine. The common drying methods are sun-drying, air-drying/shade-drying, hot-air drying, freeze-drying and so on. In practical work, appropriate drying methods should be selected according to the specific conditions and the nature of traditional Chinese medicine.

microwave drying of traditional Chinese medicine 

Effect of Different Drying Methods on the Quality of Traditional Chinese Medicine Formula Flow Extract after Drying

Abstract : The effects of different drying methods on the dry extract obtained after drying the traditional Chinese medicine preparation extract were compared.
Vacuum dry, microwave drying and spray drying were used to dry the extract of compound blue silver granules, compound sputum capsules and anti-inflammatory degreased tablets. The traits, extract yield and index components were evaluated. Indicators, to investigate the effect of different drying methods on the quality of traditional Chinese medicine preparation thick paste after drying.

microwave drying equipment 

The dry extract obtained by spray drying is the lightest, the microwave drying equipment is the second, the vacuum dry dry extract is the darkest; the microwave drying and vacuum drying yield is higher, the spray drying yield is generally lower; The index, the dry extract of the dry extract index component is significantly higher than the other two drying methods.

Different drying methods have an effect on the properties, yield and content of the dry extract. In the actual process research, the drying method must be screened.

thick paste microwave drying 

Progress in the application of microwave drying technology in ginseng processing

Abstract: Microwave drying technology has been widely used in people’s participation in work. It is characterized by high efficiency, sterilization and energy saving.

microwave drying equipment

This paper elaborates on the effective and rational use of microwave drying equipment in people’s participation through three typical cases. It is indicated that the microwave drying technology is effectively utilized in the pre-treatment of the active ingredient extraction of ginseng in the human participation process. This technology has great implications for the future pharmaceutical and food processing industries.

Key words: ginseng microwave drying; foam separation method; high performance liquid chromatography

Ginseng, a perennial herb, is a medicinal material of the Northeast and is widely used in the processing and production of food and medicine.

Microwave drying technology is an auxiliary method for extracting, drying and sterilizing by microwave. Nowadays it is widely used in order to prevent early deterioration of food for storage, usually using ultraviolet lamp, steam, high pressure, cobalt 60, ozone, nitrogen, and addition. Preservatives and other methods for sterilization, microwave drying technology has opened up an ideal way to simultaneously sterilize materials inside and outside, without destroying nutrients.

ginseng microwave drying 

Study on the influence of production process and drying method on the quality of instant rice porridge

Abstract: The production process of instant rice porridge was explored. The optimal process parameters were determined by orthogonal experiment, and themicrowave drying equipment was compared and analyzed.

microwave drying equipment

The results showed that the ratio of monoglyceride to β-cyclodextrin was 3 g / kg: 5 g / kg, the soaking temperature was 55 °C, the soaking time was 40 min, and the cooking time was 10 min. Good production parameters; Freeze-assisted hot air - Microwave drying method is the best drying method for preparing instant rice porridge, specifically: first freeze at -20 °C for 20 h, then at 80 °C for 40 min, then use 240 W microwave treatment for 5 min. This method can significantly improve the rehydration, the rehydration time is 6.5 min, and the sensory quality of the product is optimal.

Key words: millet microwave drying, instant porridge, frozen auxiliary hot air - microwave drying, rehydration, sensory quality

Xiaomi is China’s traditional food crop, the first of the “grain”, and has a history of more than 7,300 years of cultivation. Millet has rich nutritional value, and the content and quality of dietary fiber, mineral elements and polyphenols are among the highest in the grain.

millet microwave drying 

Effect of drying method on the characteristics of lotus root starch

Abstract: Taking lotus root as the test object, the drying time, brightness, microstructure, crystal type, viscosity, stability of condensation and freeze-thaw stability of lotus root starch were studied by four different drying methods: hot air drying, microwave drying, vacuum microwave drying and infrared drying. Sexuality and transparency impact.

microwave drying equipment

The results showed that the X-ray diffraction patterns of lotus root starch treated by hot air drying, microwave drying equipment, vacuum microwave drying and infrared drying were the same, and the crystal types were all B-type structures.

The hot air drying and infrared starch particles are irregular in shape, the surface is rough, there are obvious pits, the agglomeration and cracks between the particles are serious, and the appearance quality is extremely poor. The microwave drying and vacuum microwave drying of the starch, the overall structure of the large particles is an ellipsoid type. The small particles are spherical, no agglomeration, and the vacuum microwave drying lotus root starch particles are relatively complete, the outline is clear, and the surface is smooth.

lotus root microwave drying

Drying process of wood white fungus in Tongjiang section

Abstract : This paper studies a drying process suitable for the wood fungus in Tongjiang section to facilitate its storage and transportation.

microwave drying equipment 

Using 6 different drying methods (hot air constant temperature / variable temperature drying, freeze drying, microwave drying equipment, microwave - hot air combined drying and freezing - hot air combined drying), the wood fungus of Tongjiang section is dried, and the sensory of dried Tremella is analyzed and determined. The scores (out of 10), rehydration ratio, browning degree and energy consumption are used, and the coefficients are weighted by the coefficient of variation method. The highest total score is the best drying method.

The results showed that different drying processes had significant effects on each index (p<0.05), and the degree of influence varied. The highest weighted score was the hot air gradient (35 °C~50 °C, 50 °C~40 °C). The sensory score, rehydration ratio, shrinkage rate, browning degree and unit energy consumption were 8.52, 9.04, 27.87%, 0.313 and 34.56 kJ/g, respectively. Followed by freeze-hot air drying and freeze drying.

Tremella microwave drying

Effects of different drying methods on the quality of green plum

The effects of hot air drying, vacuum drying, microwave drying equipment and vacuum freeze drying on sensory characteristics, main nutrients and microstructure of green plum were studied.

microwave drying equipment 

The results showed that the drying time of vacuum microwave drying was the shortest, 40 minutes, and the drying rate was significantly higher than that of other drying methods (p < 0.05); the longest time of vacuum freeze drying was 22 hours. The sensory characteristics of green plum were the best after vacuum microwave drying at 65-70 C. It was golden yellow with honeycomb structure and rich plum fragrance.

Generally speaking, the quality of green plum obtained by vacuum freeze-drying is the best, but the drying time is 33 times that of vacuum microwave drying. The actual production can combine vacuum microwave drying and vacuum freeze-drying to treat green plum.

green plum microwave drying

Effect of drying methods on quality and antioxidant activity of apricot meat powder

Absrtact: Pure natural apricot meat powder was prepared by microwave drying equipment, hot air drying, microwave vacuum drying and microwave convection drying. The effects of drying methods on nutrient composition, physical properties, sensory quality and antioxidant ability of apricot meat powder were compared.

microwave drying equipment

Key words: apricot meat microwave drying; hot air drying; microwave vacuum drying; microwave convective drying; quality; antioxidant capacity

Apricot is a plum plant of Rosaceae, originated in Xinjiang, China. It has been cultivated for more than 3000 years. Apricot fruits contain a large number of phytochemicals, such as polyphenols, carotenoids and vitamins. These substances make them not only delicious, sweet and sour, pleasant flavor, but also have certain health effects on cancer and chronic diseases, which are deeply loved by peopl.

apricot meat microwave drying 

Effect of Different Power Densities on Soybean Quality during Multi-stage Microwave Drying

ABSTRACT: In view of the influence of power change in microwave drying equipment, using soybean with 20% initial wet base moisture as model material, microwave drying was carried out with four schemes at power densities of 0.8 W/g, 0.6 W/g and 0.4 W/g, respectively. When the bursting waist rate exceeded 5%, the drying was stopped.

microwave drying equipment 

The results showed that in the drying process, the higher the power density, the lower the wet base moisture content of soybean, and the more energy needed.

In the process of microwave drying soybeans with different power densities, the power density should not be too high at the beginning of drying. There is no need to increase power density in the later stage of drying process, and excessive power density will cause a lot of waste of energy. Reducing different power density in microwave drying stage can effectively improve energy utilization efficiency.

soybean microwave drying

Advances in Rice Drying Technology and Quality Evaluation

This paper summarized the achievements of rice drying technology and technology, rice drying quality research, and discussed the relationship between drying technology and rice drying quality, in order to provide reference for the research of rice microwave drying equipment.

microwave drying equipment

Key words: rice microwave drying; quality

The rice should be dried in time after harvest, otherwise it will have an important impact on the subsequent rice production, processing and preservation. According to the estimates of relevant departments, more than 5 million tons of cereals are lost every year because they cannot be dried in time. Therefore, timely drying and precipitation of rice is of great significance to rice production and processing.

Drying technology is an indispensable technology in modern industrial and agricultural production. The drying effect will directly affect the quality and shape of products. Drying technology includes complex mechanism of mass transfer and heat transfer, which involves a wide range of disciplines and is closely related to the characteristics of drying materials.

rice microwave drying