Virtual Labs: Controlling Water Activity in Food

De Learning Games Lab, NM State University en AppTrack Ninja.

Learn how controlling water activity (Aw) keeps food from spoiling. Then test Aw of dried corn before and after storage, using proper laboratory methods. Virtual Labs interactive food science modules train high school and college students in basic laboratory techniques, in this case using water activity to control food spoilage and determine best conditions for storage. Water activity is important to food preservation. When water activity is less than 0.6, almost all microbes, including bacteria, molds, and yeasts, stop growing. Vegetables are usually dried even further, to Aw 0.3 or 0.2, for…

Categorías: Education

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