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.
