Virtual Labs vs Chromatography

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.

Dive into the fascinating world of Chromatography with this comprehensive and interactive app designed to simplify the understanding of this essential scientific technique. Chromatography, a method for separating mixtures, plays a crucial role in laboratories and industries worldwide. Whether you’re a student, teacher, or professional, our app provides an in-depth look at the different types of chromatography, including paper, thin-layer, gas, and liquid chromatography, in an engaging, easy-to-understand format. App Features: User-Friendly Interface: Navigate through the app effortlessly with a clean and intuitive design. Languages Supported: Available in English to cater to a global audience. Zoom In and Zoom Out Model: Explore detailed visuals of chromatographic processes and equipment with adjustable zoom functionality. Rotate in 3D Model: Interact with 3D models of chromatographic setups, rotating them for a complete understanding of the structures and mechanisms. Audio Pronunciation for All Parts: Improve your scientific vocabulary with correct pronunciations of all components and terminology used in chromatography. No Internet Connection Needed: Access all content and features offline, making it convenient for use anytime, anywhere. Enhance your knowledge and grasp the intricacies of chromatography with this interactive and educational app!