A hamburger's main ingredient is ground beef, which has no starch. However, there are many methods to prepare the meat prior to cooking it as a hamburger. This can include use of breadcrumbs as a filler, and if these are not used, there most likely is no starch in the hamburger.
A hamburger may or may not have starch in it. A hamburger starts out as ground beef. That is the basic patty. If you purchase it that way and cook it yourself, it does not contain starch. A number of companies add soy meal (or other products) to ground beef to make hamburger patties. In that case a hamburger contains starch. If you eat your hamburger in a bun, or add garnishes, or cheese, or a number of other products, you added starch. So, a hamburger may or may not have starch.
The presence of starch can be tested with the help of Iodine. Similarly Benedict's test solution is also used to detect the presence of starch.
Iodine-KI reagent. Add to the substance being tested directly. Result: If positive, Turns Blue/Black If negative, (absence of starch) Solution remains orange/yellow.
Starch, I think, because iodine solution is the test for starch.
E.coli does not digest the starch on a starch agar plate, therefore it does not produce amylase making it negative.
iodine ~jackie
Iodine solution turns blue/black
it is positive for starch hydrolysis
Starch doesn't react in the Benedict test.
No, it is negative
Carbohydrates, especially starch, which is a polysaccharide carbohydrate. Starch turns deep purple when tested with iodine.
Starch can give a negative iodine test when starch is mixed with iodine in water. The iodine gets stuck in the coils of beta amylase molecules and the starch forces the iodine atoms into a linear arrangement in the central groove of the coil.