Counterfeit detection pens use a starch-iodine reaction. ... and there is an enzyme that catalyzes the breakdown of starch. Amylase. ... and I've actually never done this experiment before, ...

But it turns out the popular experiment is so simple to do — involving only a bit of water, liquid iodine, potato starch, and a few other common reagents — that it can be done at home or even ...

Put 1cm³ of amylase enzyme into tube 1 but not tube 2. Leave at room temperature for five minutes. Test for starch (using iodine) and glucose (using Benedict’s reagent) inside and outside both ...

You can also use simple store bought chemicals like vitamin C, iodine, hydrogen peroxide and starch. A quick internet search will turn up multiple ways of performing the experiment.

Add 1 teaspoon of liquid starch to 2/3 cup of water in a small glass or container. In another small container, pour in ¼ cup of water and carefully add about 10 drops of iodine.

Footage shows the stunning moment a dynamic colour shift from an iodine clock reaction was captured in China. University students conducted a chemical kinetics experiment by adding three distinct ...

Two new studies found that ancient human ancestors carried a surprising diversity of genes for amylase, an enzyme that breaks down starch. By Carl Zimmer As soon as you put starch in your mouth ...