(SOLVED) BIOCHEMISTRY TESTS for FOOD MACROMOLECULES

Discipline: Chemistry

Academic Level: Undergrad. (yrs 3-4)

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Pages: 1 Words: 275

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Question

BIOCHEMISTRY TESTS for FOOD MACROMOLECULES Carbohydrate Benedict Simplodine Complox BiurtProtein sugar sugar ellow- Black wnito purple Purple Blue Blue Rod Water Blue Orange Reset Table Check PROGRESS: 72% chemistry test result o. BSTER

Expert Answer

Benedict's test

For simple/reducing sugar
Positive result - colour change to green, orange or red
Negative - blue (no change)

Iodine test

For complex carbohydrates like starch
Positive - brown/black colour
Negative - yellow/orange (no change)
In testing of milk the colour is white because of the colour of milk and it doesn't turn to brown/black, indicating that it doesn't contain starch.

Biuret test

Test for presence of peptide bone (or protein)
Positive - boiler colour
Negative - Blue (no change)

Food Carbohydrate Proteirn Benedict Simple lodine Complex Biuret sugar Protein sugar yes yes yes yes no no yes no no potato yes yes no no no Pale urple Orang Rod Red White Purple ue Bue aue Deeg Brow yes no no Blue yes orang yes no yes yes no yes no no Vegetablu Dark lue yes