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Detecting starch in food on a microscale

Description

In this experiment you will be testing various foods to see whether they contain starch.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
detecting-starch-in-food-...



Apparatus Chemicals

Eye protection

Each working group needs:

Clear plastic film (e.g. acetate sheet as used for an overhead projector)

Forceps (for handling foodstuffs)

Paper towels

Sodium hypochlorite solution , 5% w/v of available chlorine (IRRITANT), 10 cm3

Potassium iodide crystals, allow 5-10 small crystals per group

A range of foodstuffs, broken into small pieces, to include both starchy and non-starch-containing foods

Refer to Health & Safety and Technical notes section below for additional information.

 



 




In this experiment you will be testing various foods to see whether they contain starch.

ADDITIONAL INFORMATION

This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. Practical Chemistry activities accompany Practical Physics and Practical Biology.