freeze-drying


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Related to freeze-drying: lyophilizer

freeze-drying

 [frēz´-dri″ing]
a method of tissue preparation in which the tissue specimen is frozen and then dehydrated at low temperature in a high vacuum. See also lyophilization.

ly·oph·i·li·za·tion

(lī-of'i-li-zā'shŭn),
1. The process of isolating a solid substance from solution by freezing the solution and evaporating the ice under vacuum.
2. The process of imparting lyophilic properties to a substance.
Synonym(s): freeze-drying

freeze-drying

/freeze-dry·ing/ (frēz-dri´ing) a method of tissue preparation in which the tissue specimen is frozen and then dehydrated at low temperature in a high vacuum.

ly·oph·i·li·za·tion

(lī-of'i-lī-zā'shŭn)
The process of isolating a solid substance from solution by freezing the solution and evaporating the ice under vacuum.
Synonym(s): freeze-drying.

freeze-drying

a process by which biological material can be preserved by removal of water under a vacuum while the material is frozen.

freeze-drying,

n a method for preparing herbs or glandular extracts in which the material is rapidly frozen to between −40° F and −60° F and then dried under vacuum. This method ensures preservation of biologically active molecules in the extracts.

freeze-drying

1. a method of tissue preparation in which the tissue specimen is frozen and then dehydrated at low temperature in a high vacuum. See also lyophilization.
2. a process of removing water from frozen foods or vaccines. The material must be powdered, sliced or diced and be stored in moisture-proof containers.
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References in periodicals archive ?
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Evaluation of cryoprotective potential of Jerusalem artichoke' inulin during freeze-drying and storage of Lactobacillus paracasei HII01
In general, the freeze-dried products cost the most, because freeze-drying is an energy-intensive process.
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1 that freeze-drying and storage leads to a decline in the percentage of viable cells, but an increase in the number of viable but non cultivable cells.
Impact of protecting compounds on the viability, physiological state and lipid degradation of freeze-dried Pseudomonas Fluorescensbtp1 during storage
Freeze-dried bacteriocin powders were prepared by growing bacteriocin producers in dairy-based media, freezing the cell-free culture supernatants at -70 C, -85 C or -196 C, and then freeze-drying the samples.
Freeze-dried preparations of bacteriocins inhibit L. monocytogenes, S. aureus
In the freeze-drying process, crystals of frozen ice in the food are sublimed (evaporated) to water vapour in a vacuum chamber.
They're eating our food over there: Back Country Foods is carving a lucrative niche in the freeze-dried foods market. Peter Owens traces the history of the company, and reports on its products and potential
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Lyoguard[R] Freeze-Dry Trays offer professionals in the pharmaceutical industry a cost-effective method of freeze-drying materials that results in a significant increase in product containment, decrease in product contamination, and dramatic reductions in clean up costs.
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A thorough understanding of the process variables has led to the development of freeze-drying equipment that can preserve the physical and chemical characteristics of foods and other substances throughout the drying process, en-abling successful rehydration as well.
Improvements in Freeze Drying Expand Application Base
The Crowes, for example, have applied for a patent on a trehalose-based process for preserving liposomes with freeze-drying.
Death-defying dehydration: sugars sweeten survival for dried-out animals, membranes and cells

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