Halting the Briggs-Rauscher Reaction

CCA! Volume 5

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Halting the Briggs-Rauscher Reaction

Catalase from a liver extract decomposes the hydrogen peroxide in an Briggs-Rauscher reaction, stopping the oscillations.


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2 MB, 31 seconds

File: MOVIES/KJBIOCHEM/HALTBRIGG.MOV

Voiceover
An actively oscillating Briggs-Rauscher reaction changes color from blue to amber to clear. Adding a liver extract containing catalase enzyme immediately halts the oscillations. Catalase decomposes the hydrogen peroxide in the reaction to water and oxygen. Foam is created by the released oxygen.

Design, Text, and Demonstration:
	Kristin Johnson	University of Wisconsin - Madison, Madison, WI 53706

Video production, editing, and voice:
	Jerrold J. Jacobsen	University of Wisconsin - Madison, Madison, WI 53706
	Greg Minix	University of Wisconsin - Madison, College of Engineering, Madison, WI 53706
	Michael Killips	University of Wisconsin - Madison, School of Nursing, Madison, WI 53706