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Durian is a typical and favorite fruit in Vietnam. Currently, with the development of technical technology, the sublimation drying method was born to help dry durian fresh into a product that can be preserved for a long time and exported to the international market, bringing high economic value. for farmers.
In this article, SUNSAY sublimation dryer will provide you with the technological process of sublimation dried durian production with its characteristic delicious taste, keeping its nutritional value, and improving its economic value.
MỤC LỤC
Nutritional value of durian – Sublimation dried durian
Durian is a nutritious fruit, rich in vitamins, fiber as well as healthy plant compounds. In 243 g durian provides
- Drop: 357
- Fiber: 9g
- Fat: 13g
- Protein: 4g
- Along with vitamins B6, B vitamins, vitamin C, thiamin, riboflavin, folate, potassium, manganese, copper, magnesium.
Health benefits of durian fruit
- Heart disease prevention
- Reduce the risk of cancer
- Control blood sugar
- Anti-infection, antibiotic
- Good for joints
Why is it necessary to freeze-dry durian?
Durian is one of the fruits when ripe with soft characteristics, easy to change nutrients and difficult to preserve in external environmental conditions for a long time.
Currently, in order to prolong the storage time for durian, people have applied sublimation drying because strawberries have a watery texture and are easily softened, so if they are dried normally – cold drying will make durians flatten and change. The shape and color are not pleasing to the eye. Durian dried by sublimation drying method is also easily pulverized to diversify products, improve durian value, and bring high economic efficiency.
Sublimation drying principle
The principle of sublimation drying is to apply the sublimation phenomenon of ice to dry the product. For fruits with a lot of water, a lot of sugar or products that are difficult to preserve outside, freeze drying can be applied.
The freezing temperature in the drying chamber must reach -30 degrees Celsius to ensure the requirements for sublimation drying, and the pressure must be as low as 15-50 pa.
Production process of sublimation dried durian by SUNSAY sublimation dryer
Sublimation drying of durian is done through the following basic steps:
Step 1: Prepare, select the source of durian for drying
When the harvest season comes, choose to buy quality durians, with ripeness from 80 to 90% of fresh ripe durians, conduct a selection to remove diseased or diseased, rotten durians. , …
After the durian is tested, it is best to process and dry it to ensure the freshness of the raw materials and the quality of the sublimation dried durian.
Step 2: Wash durian
After being selected, durian will be washed with clean water for 4-5 minutes to remove dirt and foreign objects. It is possible to use thimerosal soaked with durian to disinfect, remove harmful chemicals (if any), soak for 6-12 minutes, then rinse several times with water to remove chemicals. Dry.
Step 3: Peel and remove seeds
Durian after being washed to be peeled by specialized tools. Gently take each durian segment and peel the seeds inside. This process is carried out in a cold, closed room to ensure food safety and hygiene.
Step 4: Freeze durian with SUNSAY quick freezer
The processed durian will be put into a freezing chamber of -40 degrees Celsius, fast freezing in 1-2 hours depending on the size, the type of durian is brought to the freezer.
After freezing by SUNSAY quick freezer , durian will be stored in cold storage at -18 degrees Celsius before being processed for sublimation drying.
Step 5: Slice and shape the durian
Proceed to cut the frozen durian segments into slices with a thickness of 1-2 cm. The thickness of durian slices will determine the crispiness of the product and the time of sublimation drying.
Step 6: Sublimation drying durian
Place sliced durian into each drying tray and proceed to drying with SUNSAY sublimation dryer. The freeze-drying process sublimes the ice in durian. The ice crystals in durian will sublimate without going through the liquefaction stage in a vacuum environment. About 90% of the moisture in the durian is removed.
Next will come the secondary drying stage to evaporate the residual moisture in the durian, the temperature is adjusted gradually. The moisture in the raw materials is about 1 – 4%, and the sublimation dried durian product is completely dry.
Step 7: Pack and label the sublimation dried durian
Sublimation-dried durians are usually sized and packaged in bags of 100 to 500 g or at the request of the supplier for distribution to the market. Exported products are usually packed with larger sizes and weights that can be from 10 to 20 kg per unit.
The packaging stage can use a specialized packaging machine for sublimation dried durian. Products before being released to the market are stamped with the brand label that you are building or as required by the partner.
For the production technology of freeze-dried durian by SUNSAY sublimation dryer, you can use the phrase ” sublimation-dried durian ” to distinguish it from other traditional drying methods to help customers easily identify product quality and enhance the sales value of your brand.
Advantages of sublimation dried durian products by sublimation dryer SUNSAY
Sublimation- dried durian by SUNSAY sublimation dryer has the following outstanding advantages:
- Sublimation dried durian products after drying retain their natural beautiful color, delicious taste, and crunchy, melt-in-your-mouth products.
- The nutritional content is almost unchanged or changes very little.
- Product moisture is low, helping to prolong the shelf life of dried sublimation durian.
- Increase the economic value of durian.
SUNSAY Sublimation Dryer produces sublimation dried durian
In the production process of freeze-dried durian, in addition to raw materials and processing technology, the sublimation dryer is a very important drying device to contribute to the product meeting the quality requirements and export standards. export.
SUNSAY Sublimation Dryer is the leading prestigious supplier of equipment and production process for durian sublimation in Vietnam. We are committed to being ready to accompany you from the preparation stage to the operation and the long time when the factory goes into production.
In order to ensure the quality of sublimated dried durian, it retains its characteristic delicious flavor, beautiful color and good nutritional composition, meeting export requirements. Please contact SUNSAY Sublimation Dryer for the best advice and support.
How much does a sublimation dryer cost?
SUNSAY sublimation dryer is a product researched and manufactured in Vietnam by experienced drying engineers. SUNSAY’s mission is to improve the value of processing and preserving Vietnam’s post-harvest agricultural products, contributing to solving the post-processing stage of the fruit industry. SUNSAY sublimation dryer ensures standards of quality, food safety and hygiene.
With a reasonable price, SUNSAY Vietnam believes that the SUNSAY sublimation dryer is completely worthy for you to invest and use for a long time, bringing the best efficiency.
SUNSAY sublimation dryer offers a completely new and time-saving solution, reducing investment costs for users, bringing high economic efficiency.
SUNSAY dryer company currently has many types of sublimation dryer prices suitable for many production scales of people, from start-up production of 5 kg to medium-scale 200-300 kg to large-scale production of 5 tons of products. fresh products of all kinds. The machine responds to fast drying time, keeps beautiful colors, is especially energy-saving and achieves high efficiency.
Contact method to order dryer SUNSAY
In addition to sublimation dryers, SUNSAY Vietnam also provides other types of dryers such as: refrigeration dryers, heat dryers, rice dryers, and horizontal dryers,…
Please contact Hotline (Zalo): +84 935.995.035 or call center +84 941.108.888 or leave information in the form and we will contact you right away.
