Amylose is a starch and a starch/iodine mixture is blue. Saliva contains amylase, an enzyme that breaks the starch down to begin the digestion process. Without starch, the iodine/starch blue color disappears.
Here is a site with much more information about it.
http://en.wikipedia.org/wiki/Amylase
Wh does the blue color of Iodine disapear when amylose reacts with saliva?
I had thought it was because Amylase in saliva will replace the I2 in the amylose coil and thus removes the color, but I got it wrong.
I know it has to be connected to the Amylase in saliva, it should also be about amylose going into maltose. ?any help in understanding would be great. Thanks.
2 answers
the choices remaining are 1. Saliva causes the amylose chain to uncoil soIodine is no longer trapped.
2. Saliva reacts with Iodine causing it to be unable to complex with the amylose coil.
3. Saliva cause the amylose chain to break into short chains and then into glucose which does not coil and so does not trap Iodine.
I have been tring to read everything I can about this subject, but nothing is saying anything that concerns the choices left. Any help would be welcomed.
2. Saliva reacts with Iodine causing it to be unable to complex with the amylose coil.
3. Saliva cause the amylose chain to break into short chains and then into glucose which does not coil and so does not trap Iodine.
I have been tring to read everything I can about this subject, but nothing is saying anything that concerns the choices left. Any help would be welcomed.