A space where students can read and respond to ideas and information Mr. Delemeester shares for and about our classroom. The four rules for all posts and comments on this site are that they must be Responsible, Respectful, Honest and Caring.
Saturday, December 23, 2017
Using Osmosis to Preserve Food
Taylor M. found that placing her "eggsperiment" in Karo Syrup drew a significant amount of water out of the egg (the circumference changed from 16.6 cm to 12.3 cm) because of the osmotic pressure gradient created by the syrup.
Taylor's eggsperiment shows that creating osmotic pressure with salt, brine, or sugar solutions was an effective method to remove water and slow the metabolism (growth) of microorganisms to preserve food before the widespread use of refrigeration in the modern era.
Read more about preserving food with osmosis at https://www.scientificamerican.com/article/how-do-salt-and-sugar-pre/#
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