Chitosan solution was put into purified collagen solution, then, became sponge by freezing drying.
首先制备高纯度的胶原蛋白溶液,使之与几丁糖溶液键合,冷冻干燥成为海绵体。
参考来源 - 几丁糖—胶原海绵的研制及其在兔耳动脉止血中的应用Tobacco culture can increase tobacco aroma phenylalanine content,the tobacco aroma phenylalanine content was minimum in freezing drying conditions,phenyl acetaldehyde which in the four material content has the highest level.
6.鲜烟叶粉碎培养能提高烟叶苯丙氨酸类香气物质的含量,而冷冻干燥处理条件下的烟叶苯丙氨酸类香气物质含量最低,其中苯乙醛的含量在四种物质中含量最高。
参考来源 - 外源添加物对鲜烟叶粉碎后培养的影响研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
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。
Equipped with heat flow bypass valve of freezing drying the coolant compressor is not frequently open and shut down.
配备有热气流旁通阀的冷冻式干燥器其冷冻剂压缩机不会频繁地开启和停机。
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。
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