Probiotics Freeze-drying Machine

 

Probiotics freeze-drying machine

At present, most probiotics products are first made into probiotics powder, and then through a certain proportion, or with other products (such as yogurt, milk powder) to form the final product into the consumer field. Therefore, in the production process of probiotics powder, the drying process is an essential and important step, but at the same time, the drying process is also a serious step in the loss of active cells of probiotics. At present, the commonly used drying processes include freeze drying, spray drying, extrusion extrusion, etc.

To compare common freeze drying as an example, its main steps first the moisture in the material, mainly is the free water cooling freeze into solid ice in advance, and then under the condition of vacuum sublimation in the material, after waiting for sublimation to remove part of the adsorbed water, and the material itself in freeze when icy fixed frame, so the volume after drying, porous, The result is a dry product with very little residual water (1% ~ 4%).

In the process of lyophilization, cells are mainly damaged in the following aspects: the "mechanical damage" caused by the mechanical stress of ice crystals formed inside and outside the cells at low temperature; Because of the freezing of water, the liquid in the intercellular space gradually concentrates, which significantly increases the concentration of electrolytes and causes "solute damage" of cell death. The changes of membrane permeability and the dysfunction of "cell membrane damage" caused by the abnormal changes of membrane fatty acid saturation, chain length, chain branching or surrounding state during lyophilization; Changes in the activities of some key enzymes in the cells during lyophilization lead to the disorder of the whole cell metabolism, which leads to the "damage of the regulation of cell metabolism" until cell death.

At present, how to increase the number of viable bacteria in the drying process is the focus of research on probiotics activity at home and abroad. The main ideas are as follows :(1) adding drying protectant such as gelatin, xanthocytin, milk fat or soluble starch; (2) Using microencapsulation or microembedding technology to protect the bacteria from the influence of extreme heat or humidity on their activity during drying and storage; (3) using ultrasonic degradation of lactic acid bacteria to release a-galactase; (4) Adding amino acids, polypeptides, proteins and other nutrients.

 

Parameter

Model	KFD-20	KFD-25	KFD-30	KFD-50	KFD-100
Tray area(m²)	20	25	30	50	100
Input capacity(kg/batch)	200	250	300	500	1000
Min. cold trap temperature(℃)	<-45℃	<-45℃	<-45℃	<-45℃	<-45℃
Vacuum degree(pa)	<10pa	<10pa	<10pa	<10pa	<10pa
Tray temp.	-35~+100℃	-35~+100℃	-35~+100℃	-35~+100℃	-35~+100℃
Tray quantity	18	22	18	28	36
Tray Size(mm)	2200x600	2200x600	3300x600	3300x600	5000x600
Cooling method	Water cooled	Water cooled	Water cooled	Water cooled	Water cooled
Total power(kw)	45	50	60	100	180
Total weight(kg)	8000	9000	11000	20000	40000

 Our Certificate

 

 

Hot Tags: probiotics freeze-drying machine, China, factory, suppliers, manufacturers, customized, price, made in China, freeze dryer guidelines, affordable home freeze dryer, fruits drying machine, china freeze dryer manufacturers, freeze dryer Lyophilizer, freeze dryer industrial