Vacuum freeze-drying, including the techniques of vacuum, freezing and drying, is a food processing method.
真空冷冻干燥是集真空技术、冷冻及干燥技术为一体的食品加工方法。
The method of the invention comprises a sol-gel process and a vacuum freezing drying process.
本发明采用的方法为溶胶-凝胶和真空冷冻干燥法。
Quick-frozen silk fibroin solution is repeated thaw-freezing before vacuum-drying, thus the pore radius of porous silk fibroin materials increased and pore density decreased;
将快速冷冻的丝素水溶液真空干燥之前，进行反复解冻—冷冻，则所制得的多孔丝素材料的孔径增大、孔密度减小；
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