منابع مشابه
18) Freezing Methods and Quality Loss at Freezing Temperatures
Feasibility will take into account whether it is possible to operate the freezer in tile plant location. A liquid nitrogen freezer (LNF), for instance, may be suitable in every respect for freezing the product and the high costs of using this method of freezing may be justified. However, if the location of the plant is such that there can be no guaranteed supply of liquid nitrogen, the freezer ...
متن کاملIn vivo detection of membrane injury at freezing temperatures.
The release of hydrogen cyanide from Amelanchier alnifolia was monitored at 30 C and -10 C following lethal freezing at both slow and fast rates. Assuming that hydrogen cyanide release indicates membrane damage, it was concluded that during a fatal freeze-thaw cycle membrane damage occurred during cell contraction and, therefore, was not dependent upon membrane area expansion during thawing.
متن کاملA simple model for freezing rain ice loads
There are many models for hindcasting ice loads from meteorological data measured during freezing rain storms. Each model is based on the physics of the ice accretion process and on empirical observations. However, these models predict significantly different ice loads for the same freezing rain storm, making it difficult to use model results to determine design ice loads. In this paper, we des...
متن کاملIrradiation inactivation of Listeria monocytogenes in low-fat ground pork at freezing and refrigeration temperatures.
Gamma radiation effectively controls Listeria monocytogenes in uncooked and in ready-to-eat foods. This study was conducted to determine if gamma radiation could be used to control L. monocytogenes in ground pork. Ground pork was contaminated with L. monocytogenes, kept at refrigeration (4 degrees C), chilling (0 degrees C), and freezing (-18 degrees C) temperatures overnight, exposed to gamma ...
متن کاملPreservation and Transportation of Hepatocyte Monolayers in A No Spill Format at Non Freezing Temperatures
Hepatocyte monolayers were preserved under a gelatin overlay at 10 C. Morphological changes were observed after 4 days, as structure less areas at the cell periphery. The changes could be prevented by adding sucrose (0.05M) to the gel. Cell viability remained high for 7 days. Cell spreading occurred rapidly when the cells were reactivated. Basal enzyme levels were maintained during the preserv...
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ژورنال
عنوان ژورنال: Monthly Weather Review
سال: 1904
ISSN: 0027-0644,1520-0493
DOI: 10.1175/1520-0493(1904)32<114b:raft>2.0.co;2