daligdigjaidely5759 daligdigjaidely5759
  • 18-09-2017
  • Physics
contestada

explain in detail how you would test a gingerbread biscuit solution for the presence of starch, sugar, and protein

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johnkellock
johnkellock johnkellock
  • 30-09-2017
To test a food for starch, you can add a few droplets of iodine to it, if the liquid changes to a blue/black color then starch is present. To test for sugar you can use Benedict's solution, which will also have a color change from blue to yellow/red/orange. Add Biuret Reagent solution to test for protein, the solution will turn a pink or purple color... Note that this may not improve the taste or color of your gingerbread biscuit though :)
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