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A cryoprotectant is a substance used to protect biological tissue from freezing damage (i.e. that due to ice formation). Arctic and Antarctic insects, fish and amphibians create cryoprotectants (antifreeze compounds and antifreeze proteins) in their bodies to minimize freezing damage during cold winter periods. Cryoprotectants are also used to ...
The freezing process is usually initiated extracellularly in the gut, tissues, or hemolymph. In order to supercool to lower temperatures, freeze-avoidant insects will remove or inactivate ice-nucleating agents (INAs) such as food particles, dust particles, and bacteria, found in the gut or intracellular compartments of these organisms.
Tightly closed display cases or storage will provide protection from any sudden changes in temperature, relative humidity, dirt, and dust. Storage drawers lined with a chemically stable cushioning material, for example polyethylene or polypropylene will protect the surface of the ivory.
Generally, the water within the plant’s cells freeze, and that ice can injure cell membranes, ultimately killing the plant. Some vegetable plants will “bolt” during a freeze.
The following species in the flowering plant genus Hibiscus were accepted by Plants of the World Online as of September 2024. [1] There have been multiple ancient ...
A Heavy Freezing Spray Watch is issued by the National Weather Service of the United States when there is an increased risk of a heavy spray event that meets the necessary criteria, but the occurrence, timing, and/or location are still uncertain. A watch will be issued when forecasters expect freezing water droplets to be able to accumulate on ...
The roselle (Hibiscus sabdariffa) is used as a vegetable. The species Hibiscus suratensis Linn synonymous with Hibiscus aculeatus G. Don is noted in Visayas in the Philippines as being a souring ingredient for almost all local vegetables and menus. Known as labog in the Visayan area (or labuag/sapinit in Tagalog), the species is an ingredient ...
Salt for use of melting ice and snow works through a phenomenon called freezing-point depression, the lowering of a substances freezing point after the addition of solutes. When road salt is added to roads, aside from providing better friction for vehicles on the road, it also dissolves in the water of the ice, resulting in a lower freezing point.