Rice Sterilisation Application
Drying or dehydration is the process of removing vaporisable substances such as water from solid materials in order to slow or stop microorganism growth or chemical reactions.
In traditional drying methods, heat is gradually transferred from the surface of the dried material to the interior due to the temperature difference between the hot surface of the product and the colder interior during the drying process.
Thus, first the surface and then the inner parts of the product dry and the hard layer formed on the outer surface of the product due to shrinkage prevents the transfer of heat to the inner parts and the moisture inside the product to the outside of the product. In microwave drying method, unlike traditional drying methods, since the electromagnetic field affects the material as a whole, a selective heating is performed by directly targeting the water molecules in the material. In this method, heat is generated directly in the product. The moisture in the product is evaporated by heating in very short periods of time and the moisture transfer is from inside to outside due to the vapour pressure difference in the inner and outer environment. Thus, the heat transfer problem occurring in traditional drying methods is eliminated in the microwave drying method.
Rice sterilisation with industrial microwaves is a process in which microwaves are used to kill harmful bacteria and pathogens that may be present on the surface of rice grains. This process is often used in the food industry to ensure that rice is safe to eat and to extend its shelf life. To sterilise rice with industrial microwaves, the rice is placed in a microwave drying chamber where microwaves are generated and directed towards the rice. The microwaves heat the rice to a high temperature that is effective in killing bacteria and other pathogens. One of the main advantages of using industrial microwaves for rice sterilisation is the speed and efficiency of the process.
Microwaves quickly penetrate deep into the rice grains, ensuring that all surfaces are exposed to the high temperatures required for sterilisation. This is in contrast to traditional sterilisation methods, which can be slow and not as effective at killing all bacteria and pathogens. In addition, rice sterilisation with industrial microwaves is more energy efficient than traditional methods. Less energy is used to generate the microwaves than to generate the heat required for conventional sterilisation methods. This makes it a more environmentally friendly option for sterilising rice and other products. Overall, rice sterilisation with industrial microwaves is a fast, efficient and environmentally friendly method to ensure the safety of rice and other products. It has the potential to revolutionise the food industry and is an important technology to consider for anyone involved in the processing of rice or other products.
Advantages
Industrial microwave sterilisation is a method that can be used for sterilising many different food products such as rice. Some advantages of microwave sterilisation in sterilising products such as rice are as follows:
- Speed: Microwave sterilisation is faster than other sterilisation methods. This method can quickly heat the water molecules in the products thanks to microwave energy and thus kill bacteria and microorganisms.
- Energy Efficiency: Microwave sterilisation is more energy efficient than other sterilisation methods as it heats the product directly instead of heating the surrounding air.
- Less Change: Microwave sterilisation is a gentle sterilisation method as it does not subject the rice to high temperatures or mechanical stress. This can help preserve the texture, flavour and nutritional value of the rice.
- Longer Shelf Life: Microwave sterilisation can help rice to have a longer shelf life. This can ensure that the product stays fresh and can be stored for longer.
- Product Safety: The use of microwaves can improve the safety of sterilised rice by helping to kill bacteria and other microorganisms.
Rice is the only cereal crop that grows in water. The process of rice from sowing to harvesting and to the table as a meal is very labour intensive. As in the whole world, rice production and especially its export is very important in Turkey.
Rice flour is used in many food products, especially in baby food. Therefore, sterilisation of rice is very important. Thanks to microwave technology, it is possible to dry and sterilise rice at the same time in rice flour production.
“In the 2017/18 market year (1 September-31 August), 90 thousand tonnes of paddy were imported in Turkey, 51% less than the previous market year. Import costs have increased since the second half of 2016 due to the appreciation of the US dollar against the Turkish lira, which led paddy mills to use local products. During this period, 38 thousand tonnes of brown rice and about 243 thousand tonnes of semi-/full milled rice were imported. In the 2017/18 market year, Turkey exported 40 thousand tonnes of semi-/full milled rice. According to TurkStat data, the export value of rice in Turkey decreased by 3.2 per cent in US dollar terms in the 2017/18 season compared to the previous season, while the import value increased by 50 per cent.” [1]
To avoid rising costs and reduced export revenue, the METWAVE industrial microwave oven offers an intelligent and economical solution.
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