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No Whey! Milk Protein Content Doesn't Change… Or Does It?

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No Whey! Milk Protein Content Doesn't Change… Or Does It? is rated 3.8 out of 5 by 6.
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$2.60 - $43.95Qty Discount Available View Details

In this Science Buddies science project, you’ll determine total protein concentration, casein concentration, and whey protein concentration of cow milk samples retrieved from cows during different stages of lactation. You can customize this kit to include the microcentrifuge tubes, hydrochloric acid, pH meter, and other supplies needed to complete this experiment.

 
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Many people you know probably have an opinion about the kind of milk they like to drink—some like it thin and refreshing, others like it thick and rich. Milk can be bought with different fat concentrations, but other than that, it's all the same. Or is it? This science fair project raises a few interesting questions about the other contents in milk. Do all milk products have the same protein concentrations? Do cows produce different types of milk during different stages of lactation? There's only one whey to find out—give this science fair project a try!

View the full project, background information, procedures, and more at ScienceBuddies.com

 
 
 

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Rated 5 out of 5 by from Another time saver This diluted HCL works well for digestive labs. Saves time and grief diluting concentrated acids.
Date published: 2015-09-22
Rated 4 out of 5 by from Like one of the reviewers stated you have to be patient when calibrating, but once you do it, it stays stable for a while. They are easy to use even by students who never had experience with them.
Date published: 2012-07-11
Rated 1 out of 5 by from Terrible Electrode Don't even waste your money or time with this device. It's absolutely horrible. The device drifts constantly, so badly that in order to get any type of accurate measurement you have to calibrate again before every measurement, which for a portable pH meter absolutely defeats the purpose! The biggest problem though is that the further you get away from a neutral solution the worse accuracy you get. I calibrated mine with a 7pH and 4 pH buffer and then took a reading at 10pH and got a value of 9.6. This value then drifted continuously in random directions. Unless you are happy with a +-1pH accuracy (I don't know how you could function that way, but maybe there are people out there that can) DO NOT BUY!!!!!! Spend a little more and get an EZDO meter for like 80 dollars that is so much better.
Date published: 2012-02-15
Rated 4 out of 5 by from Be patient during the calibration process. The meters are very touchy when calibrating but once they are calibrated they work effectively and consistently. Great product.
Date published: 2012-01-25
Rated 4 out of 5 by from good for the price difficult to calibrate, works alright.
Date published: 2010-01-29
Rated 5 out of 5 by from Simple and Effective These water pipets are great. They will serve well for any type of science experiment. They allow you to accurately water plants.
Date published: 2009-04-28
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