冷凍乾燥

冷凍乾燥(freeze drying; lyophilisation; cryodesiccation),簡稱凍乾,是一個利用冷凍方式乾燥食材的方法,常用來保存易腐壞的食物,或是使得食物更容易運送。[1]冷凍乾燥會先冷凍食物,再將周圍壓力降低,使得食物中凍結的冰直接昇華,由固態變為氣態。[2]

相圖中,氣態和液態的邊界是由三相點臨界點,冷凍乾燥(藍色箭頭)是將系統繞過三相點,避免由液態變為氣態(綠色箭頭)

外部連結

维基共享资源中相关的多媒体资源:冷凍乾燥
  1. Ratti, Cristina. . CRC Press. 2008-11-21: 209–235. ISBN 9781420052534 (英语).
  2. Fellows, P. (Peter),. . 4th. Kent: Woodhead Publishing/Elsevier Science. 2017: 929–940 [2018-11-16]. ISBN 0081005237. OCLC 960758611. (原始内容存档于2020-03-14).
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.