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。
Then the eluent which got from above conditions was dehydrogenized by vacuum freezing drying method, the tan powder of BLF was collected.
在此条件下得到的洗脱液再采用真空冷冻干燥的方法，得到竹叶黄酮的黄褐色粉末。
Due to the problems at present, new technology of vacuum freezing drying is introduced. As a kind of new technique, it has a bright future.
鉴于真空冷冻干燥存在的问题，着重介绍了真空冷冻干燥的新工艺、新技术以及真空冷冻干燥技术在我国的发展前景。
The vacuum freezing dry technique was applied during the drying process of the faint-scent type oolong tea.
将真空冷冻干燥技术应用于清香型乌龙茶干燥工序(冻干茶)，与冷冻茶和烘干茶进行比较试验。
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。
Finally according to design of Small scaled vacuum-freezing drying equipment, from which we investigate design theory of food freezing drying equipment.
最后通过对小型的真空冷冻干燥机的设计，探索了食品冻干设备的设计理论。
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；
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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