Alibaba China professional freeze dryer machine to dehydrate fruits

Alibaba China professional freeze dryer machine to dehydrate fruits

Freeze dryer is also known as lyophilizer, is the machine to dry different types of material to prolong its preservation time. There are many kinds of dryers; freeze dryer is the best dryer to make high quality dried products. It is quite different from dehydrator, drying oven, microwave heating, and vacuum heating drying. Drying needs heat, with those kinds of drying method, heating is in room temperature, so it has harmful to material, and there is huge nutrition and biological activity loss in the drying procedure.

On the contrary, by freeze drying, heating is occurred after the material is completely frozen to -40 C, and material is in frozen status in the whole drying procedure till completely dried. Therefore, the freeze dried products preserve its original shape, color and it has no biological activity loss, no nutrition loss.

Working theory

Under vacuum condition, material is freeze dried via principle of sublimation. The moisture in the pre-frozen material is directly sublimed from solid state (ice) to gaseous state (vapor), without melting. Freeze dried products are formed as sponginess, no shrinkage, rehydration excellent, very little water containing. The freeze dried product in sealed packaging can be stored and transported at room temperature for a long time.

Application

The small unit is for laboratory and home use; the medium-sized is for food and pharmaceutical drying application; the large-sized freeze dryer is for food and chemical industry

Food industry: drying vegetables,meet,fish,condiment instant food and specialty,etc.keeping the food’s original fresh look,smell,taste,shape.The freeze-dried products can regain water completely and can be easily longer stored and less-costly transported.

Nutrition and health care industry:

Vacuum freeze-dried nurture products such as Royal jelly,ginseng,terrapin,rainworm, etc ,keep the final products are more natural original.

Pharmaceutical industry:

Vacuum freeze-drying can be used in the drying of chinese and western leechdom such as blood serum,blood plasma,bacterin,enLDme,antibiotics,hormone etc.

Biomedicine reserch:

Vacuum freeze-drying can long-termly store blood, bacteria,artery,bones,skin,cornea,nerve tissue and organs etc which can regain water and rebirth completely.

Others:

Producing adiabatic ceramic in space industry;storing of specimens and relic in archaeological industry.

Advantages

Freeze drying equipment:

1. Efficiency of heating plates. The material of heating plates is aviation aluminum with anodized on the surface, over 100% heat release to the product by radiation, keeping heating uniformity completely.

2. Alternate vapor trap. Double vapor trap are installed under the heating plates in drying chamber. Trap 1 condenses water vapor to its maximum working cpacity, then trap 2 starts to condense. In the meantime,trap 1 begins to melt ice for another condensation cycle.

3. Continous de-icing. When the trap 2 begins to catch water vapor, the trap 1 begins to melt ice on the coil during the product being dried. After melting, the clean coil ready for another condensation cycle.

4. Automatic control system.

Advanced intelligent control system keeps the system running stably and reliably in a long time. Furthermore, simple operation can be much easier to handle.

Freeze dried products:

1. Nutrition basically remains unchanged. Drying is operated in low temperature and vacuum conditions, so the nutrition is kept, particularly effective to heat sensitive materials.

2. Form basically remains unchanged. The water contained in food is drained directly from solid to gas, so the structure doesn’t change, and just forms space between ice crystals. .

3. Colour basically remains unchanged. As drying is operated in low temperature and vacuum conditions, the physical and chemical properties of food changed little. There is also little possibility of oxidation and enLDme, thus easily to keep original color.

4. Fragrance basically remains unchanged. Because the fragrant components in food largely exist in amorphous concentrated section in the process of freezing, the fragrance can be kept when ice crystals are gasified.

5. The quality of solids hardly losses. Because of the low rate of sublimating water vapor, the substances are basically in quiescent state, thus the loss of solids quality can be ignored.

Parameter

Picture

(1)Guide customers to choose the best appliable machine type

(2)Our company will send professional engineers to guide with device installation, debugging and training operators until customers are fully satisfied.

(3)The quality guarantee period for machines is one year except the wearing parts.