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For a class of 30. Microbes can tolerate minor changes in osmotic pressure but may be killed or inhibited by the osmotic pressure exerted by high concentrations of salt or sugar. Students observe the effect of 6 concentrations of sugar or salt on 5 food spoilage microbes. The application of this principle to food preservation methods is addressed. Requires 7 days from setup to completion.
Description
For a class of 30. Microbes can tolerate minor changes in osmotic pressure but may be killed or inhibited by the osmotic pressure exerted by high concentrations of salt or sugar. Students observe the effect of 6 concentrations of sugar or salt on 5 food spoilage microbes. The application of this principle to food preservation methods is addressed. Requires 7 days from setup to completion.
Beginning - Easy to perform; requires no experience in Beginning - Easy to perform; requires no experience in microbiology.
For a class of 30. Microbes can tolerate minor changes in osmotic pressure but may be killed or inhibited by the osmotic pressure exerted by high concentrations of salt or sugar. Students observe the effect of 6 concentrations of sugar or salt on 5 food spoilage microbes. The application of this principle to food preservation methods is addressed. Requires 7 days from setup to completion.
** Kit and perishable components will ship separately and may arrive on different days.