Study on Preparation of High Quality Pure Chicken Powder by Microwave Drying

Absrtact: The technology of producing pure chicken powder by microwave drying was studied and analyzed. The optimum technological conditions for producing pure chicken meal were determined by single factor experiment and orthogonal experiment as follows: adding 0.6% bio-enzymes, extracting temperature 120 C, extracting time 2 h, feed-water ratio 1:1, homogenization 3 times.

microwave drying equipment 

The microwave drying equipment opens 36 microwave sources, the material thickness is controlled at 2-3 mm, and the feed speed is adjusted to 2 cm/s. The pure chicken flour chicken produced is pure in taste, mellow in taste, rich in head fragrance, high in protein content, low in water content, long in shelf life, and can adapt to the actual industrial production.

microwave drying of pure chicken powder 

Effects of constant temperature drying on quality and biogenic amines of fermented mutton jerky

Absrtact: The pH, water activity, tenderness and color difference of dried mutton dried by three drying methods, i.e. constant temperature drying, frying and microwave drying, were determined. The types and contents of biogenic amines in dried mutton fermented by three drying methods were determined by high performance liquid chromatography in order to compare the quality changes and biogenic amines contents of dried mutton dried by three drying methods.

microwave drying equipment

The results showed that the pH and water activity of fermented mutton dried at constant temperature were significantly lower than those of frying and microwave drying equipment (p < 0.05), the shear force and E value were significantly higher than those of frying and microwave drying group (p < 0.05), and the contents of various biogenic amines were lower than the limits. The results showed that the processed dried dried meat could give better color and hardness, prolong the shelf life of dried meat and improve its edible safety.

dried mutton microwave drying 

Research and Development Trend of Drying Equipment Technology for Chinese Medicinal Materials

Abstract: microwave drying equipment, vacuum freeze drying technology, low temperature adsorption drying technology, heat pump drying technology and spray drying technology are introduced. The combined drying technology can realize the high efficiency and energy saving of the drying process of the medicinal materials, which is the trend of drying area.

microwave drying equipment

Key words: drying equipment; microwave drying of traditional Chinese medicine; vacuum drying

Drying is an indispensable link in the processing and production of Chinese medicinal materials. The drying process directly affects the quality of Chinese medicinal products. In the drying process, time and temperature are important parameters. The magnitude of their magnitude is closely related to the loss of effective components and the degree of inferiority. Therefore, the selection of drying equipment types and the setting of control conditions are particularly important for the production and processing of Chinese medicinal materials.

microwave drying of traditional Chinese medicine 

Multi-index evaluation of the effect of different drying methods on the quality of Beiqing Longyi

1. Objective: To study the effect of different drying methods on the quality of Beiqing Longyi, and to optimize the best drying method of Beiqing Longyi.

   microwave drying equipment

   METHODS: After five drying methods (shade drying, sun drying, drying, microwave drying equipment, freeze drying) and different drying temperatures (40, 50, 60 C) under different drying methods, Beiqinglongyi was treated with drying time, rehydration rate, water content, alcohol extract content, effective components of walnut quinone and walnut ketone and their methanol extracts on human gastric adenocarcinoma BGC 823 cells and human lung cancer A54 cells. The effect of different drying methods on the quality of Beiqinglongyi was compared and analyzed.

   

   Result: Among the five drying methods, microwave drying time was the shortest and shade drying time was the longest; freeze-drying sample had the largest moisture content and microwave drying sample had the smallest moisture content; the content of alcohol extract had little difference; the content of walnut quinone was the highest in freeze-drying sample and the lowest in microwave drying sample; the content of walnut ketone was the highest in drying sample at 40 C and the lowest in freeze-drying sample in vitro. Tumor test showed that freeze-drying > drying at 40 C > shade-drying were the drying methods according to the growth inhibition rate of the two kinds of cells, and the inhibition rate decreased with the increase of drying temperature.

     Beiqing Longyi microwave drying

Effects of different drying methods on drying characteristics and quality of Polygonatum sibiricum

Absrtact: The effects of microwave vacuum drying, natural sun drying, microwave drying equipment, vacuum drying and hot air drying on the drying curve, polysaccharides, total phenols, total saponins, 5-carboxymethyl furfural content and antioxidant activity of Polygonatum were studied.

microwave drying equipment

Polysaccharides, phenols, saponins and 5-hydroxymethyl furfural in Polygonatum sibiricum were extracted by ultrasound-assisted method, and their contents were determined by the methods introduced in the literature.

At the same time, the antioxidant activity of Polygonatum Polygonatum polysaccharide was detected by FRAP and superoxide anion free radical assay. The results showed that microwave vacuum drying had the highest drying rate and the shortest drying time. The loss of polysaccharides, total phenols and total saponins was the least. The production of 5-carboxymethyl furfural was small. The polysaccharide content of Polygonatum sibiricum in the dried product was 63.59 (+1.25) mg.g-1, and the inhibition rate of 20 mg.mL-1 polysaccharide solution on superoxide anion free radicals was 30.01 (+1.3). 0%). It is concluded that microwave vacuum drying method is more suitable for obtaining high quality xanthate dried products.

microwave drying polygonatum 

Effect of drying methods on physicochemical properties of wet konjac flour

ABSTRACT: In this study, the effects of hot air drying, vacuum heating drying and microwave drying on the physical and chemical properties of wet konjac flour were compared and analyzed, and the related mechanism was discussed.

microwave drying equipment

The results showed that three drying methods had significant effects on the physical and chemical properties of konjac flour (p < 0.05). Compared with microwave drying equipment and hot air drying, the konjac flour obtained by vacuum heating drying has white color, the highest porosity, a large number of micro-holes formed in the interior, which makes the swelling rate of konjac flour the highest and the viscosity of the sol the highest (34500 mPa. s). The swelling property of konjac flour is better than that of other two drying methods, and is more suitable for drying konjac flour.

microwave drying of konjac flour

Research status of tea drying technology

Absrtact: Drying, as an important process of tea preliminary processing, is of great significance to the formation of sensory quality of tea. During the drying process, under the action of heat and force, with the continuous loss of water, the physical characteristics and internal substance components of the processed products change dramatically, thus forming the unique sensory quality of tea.

microwave drying equipment 

This paper expounds the principles and characteristics of various drying technologies for primary tea production in China, points out the trend that microwave drying equipment will develop from single technology to combined application technology, and points out that the basic research of new combined drying technology and on-line detection technology of moisture content in drying products should be improved, which will provide some development ideas for the research and development of new tea drying machinery and future tea drying technology.

tea microwave drying