WJEC BY1 Food Tests

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WJEC BY1 Food Tests

 

Test for…

Reagent

Start Colour

Positive Result

Starch

 

Iodine

Brown

Blue-black colour

Protein

 

Biuret

Turquoise

Purple colour

Fat/Lipid

Ethanol (emulsion) 1

 

N/A

White ring

Reducing Sugar

Benedicts solution and heat

 

 

Brick red

Non Reducing Sugar

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