Views: 5 Author: Site Editor Publish Time: 2022-09-13 Origin: Site Inquire
Drying equipment to improve the popularity and grade of Siraitia grosvenorii, Lantai microwave vacuum low temperature drying
In recent years, microwave drying technology has made great progress in all walks of life. More people have accepted microwave drying to replace the traditional drying and sterilization methods, and have achieved gratifying results.
Siraitia grosvenorii, also known as Oriental divine fruit, has irreplaceable health care and medicinal effects. Of course, many people have always thought that the fresh color of Siraitia grosvenorii is black, which is a misunderstanding. The shell of fresh Siraitia grosvenorii is cyan yellow and the interior is milky white. The black fruit in the market is because the water needs to be dried before the finished product, but the drying method of farmers is relatively backward. They use wood drying room, This drying process has many shortcomings. The temperature is not easy to control, and the Siraitia grosvenorii is very easy to be burnt, which makes the Siraitia grosvenorii taste a kind of burnt bitterness, which affects the market, quality and efficacy of Siraitia grosvenorii.
Some technicians of Lantai have found that microwave vacuum low-temperature drying has a good effect on the drying of Siraitia grosvenorii after making a full study of Siraitia grosvenorii. Not only is the drying speed fast, but also the moisture is dried at 40 degrees in the absence of oxygen in the vacuum low-temperature, so that the original color of Siraitia grosvenorii after drying will not be burnt. The most important point is that microwave has the function of sterilization and disinfection, It also provides a guarantee for the quality of Siraitia grosvenorii.
Microwave refers to the electromagnetic wave with the frequency of 300mhz-300ghz, which is the abbreviation of a limited frequency band in the radio wave, that is, the electromagnetic wave with the wavelength between 1m (excluding 1m) and 1mm. The basic properties of microwave usually show three characteristics: transmission, reflection and absorption. For glass, plastic and porcelain, microwaves almost pass through without being absorbed. Water and food absorb microwaves and heat themselves. For metal objects, they will reflect microwaves.
Microwave has good penetration. When the microwave enters the medium, due to certain interaction between the microwave energy and the medium, the molecules of the medium will vibrate 2.45 billion times per second at the microwave frequency of 2450 MHz, and the molecules of the medium will rub against each other, resulting in the rise of the medium temperature. The interior and exterior of the medium materials will be heated almost at the same time, forming a bulk heat source state, which greatly shortens the heat conduction time in conventional heating, And under the condition that the dielectric loss factor is negatively related to the dielectric temperature, the internal and external heating of the material is uniform.
Now, Lantai has achieved great success in the field of Siraitia grosvenorii drying. It has not only opened an office in Guilin, the hometown of Siraitia grosvenorii, but also provided customers with free drying experiments. Lantai microwave Siraitia grosvenorii vacuum low-temperature drying equipment has obtained a national invention patent. More and more fruit farmers and cooperatives are willing to give up traditional equipment and processes and choose microwave to process Siraitia grosvenorii. The results have not disappointed them, Lantai will also strive to do every detail well. For the popularity and quality of Siraitia grosvenorii, Lantai will work as always to bring gospel to more Siraitia grosvenorii farmers and cooperatives!