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The lyophilizer: polysaccharide is not powder resulting from the vacuum freeze drying

2020/10/11
Freeze-drying machine, also known as vacuum freeze drier, at present has very broad in polysaccharide freeze-drying. But there are some polysaccharide vacuum freeze drying after got the sticky stuff, not powder. Vacuum freeze-drying vendors would conclude for everyone:

there are many possible reasons for this:

1, polysaccharide products not completely frozen. General is in - 80 ℃ ultra-low temperature freezer frozen best 12 hours or more;

2, polysaccharide products spread out as far as possible, just like a piece of paper, easy to dry;

3 and vacuity of the vacuum freeze drier Settings may not be enough, the drying temperature on the high side;

4, the drying time is not long enough, is not completely dry;

5, polysaccharide products easily moisture absorption, immediately after the seal. Absorption of moisture or take it out.






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