One of the methods used to preserve bacteria. Cells are suspended in a sucrose/peptone solution and dried under vacuum at -40oC. They are then sealed in vials while still under vacuum, and in this condition can survive for many years. Vials prepared in this way serve as a reserve supply of important strains.
a technique used in the preservation of plant tissues, micro- organisms etc., whereby water is removed under vacuum while the tissue remains in the frozen state. Synonymous with lyophilization.
3/4 The process of rapidly freezing a solution and removing the solvent by sublimation under vacuum.
A technique used in the preservation of living material, whereby water is removed under vacuum while the tissue remains frozen.
Engineering. A process in which food or tissue is preserved, by drying it in a frozen state under high vacuum conditions; used in preparing medicines and laboratory specimens and in some forms of food preservation.
a method of drying food or blood plasma or pharmaceuticals or tissue without destroying their physical structure; material is frozen and then warmed in a vacuum so that the ice sublimes