IGCSE Lab: Natural polymers The hydrolysis of starch by acid and enzyme

[@slavkomrvar4198]

Excellently displayed experiment.

[@imamfbz1220]

Thank you so much, this video helpfull for me

[@talalkamal4801]

Hello, was any enzyme added to the first experiment?

[@dorothydumagan2301]

what is the role of sodium bicarbonate in the reaction? why do we need to put it?

[@ayan8233]

To neutralize any acid that remained from the HCl added as NaHCO3 reacts with HCl to give off CO2 and table salt

[@BBQsquirrel]

Otherwise the excess HCl will make the Benedict's test not work