Virtual Labs: Understanding Water Activity 4+
Learning Games Lab, NM State University
Designed for iPad
-
- Free
iPad Screenshots
Description
What is water activity, and how does it affect food spoilage? Explore how microbes and reactions inside food rely on water, then calibrate a lab water activity meter.
Virtual Labs interactive food science modules train high school and college students in basic laboratory techniques.
Moist foods – like fresh fruit or raw meat – often have high water activity and spoil quickly. But some foods that seem moist – like jam or pepperoni – don’t spoil as quickly. Why is this? All living things need water to survive. Enzymes and chemical reactions also require water. If water activity is less than 0.6, almost all microbes, including bacteria, molds, and yeasts, stop growing. This means that food can be preserved against spoilage by lowering its water activity – whether by evaporating water away or binding it up. Virtual Labs: Understanding Water Activity familiarizes the user with food science lab equipment and standard techniques for measuring water activity. The interactive guides users through both theory and practice, preparing them for experiences in a real lab. Complete this lab first, then follow up with Virtual Labs: Controlling Water Activity.
This work was supported by USDA CSREES and USDA National Institute of Food and Agriculture under two Higher Education Challenge Grant projects: 2008-38411-19055 and 2011-38411-30625. © 2008-2016 NMSU Board of Regents. Collaborating universities South Dakota State University, North Dakota State University and New Mexico State University are all equal opportunity/affirmative action employers and educators.
What’s New
Version 1.0
This app has been updated by Apple to display the Apple Watch app icon.
App Privacy
The developer, Learning Games Lab, NM State University, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.
No Details Provided
The developer will be required to provide privacy details when they submit their next app update.
Information
- Provider
-
New Mexico State University Board of Regents has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
- Address
- Gerald Thomas Hall, Rm. 286 940 E. College Ave. Gerald Thomas Hall, Rm. 286, Las Cruces New Mexico 88003 United States
- Phone Number
- +1 575/646-5003
- mmedia@nmsu.edu
- Size
- 92.6 MB
- Category
- Education
- Compatibility
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- iPad
- Requires iPadOS 9.3 or later.
- Mac
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
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English
- Age Rating
- 4+
- Copyright
- © 2008-2016 NMSU Board of Regents
- Price
- Free