Experiment with Salivary Amylase Enzyme – Mr Pauller

September 4, 2019

both looking very purple right because
starch. Iodine in the presence of a polysaccharide (starch) produces that dark
purple color. Sciences is gross sometimes! After 10 minutes. After 20 minutes. We got the little cube right here.
What’s the little cube? Okay that’s sugar. Into this first speaker
we’re putting the sugar cube, the sucrose. Sucrose is a disaccharide. We’re going to watch what it does. And while we wait for that, I’ll be adding cornstarch to the second
beaker. And that’s more than I need. This is good amount right there one starts
going in there. Iodine to sugar solution; 1,-2-3-4-5(drops) iodine added to starch solution. 1-2-3-4-5 (drops) iodine
added to just plain water. 1-2-3 Comparing water and iodine to sugar water solution with iodine (note color is yellow/orange) Comparing water and iodine (with)
starch solution and iodine . (Note purple color of starch iodine solution) After 50 minutes (note lighter color with enzyme / starch is being broken down in right side beaker) 🙂

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