By Giovanni and Alex. Our Aim: To find out what antibacterial properties different condiments have.

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Presentation transcript:

By Giovanni and Alex

Our Aim: To find out what antibacterial properties different condiments have.

What We Predicted: We predicted that Ketchup would be the condiment with the most antibiotic properties, out of the 3 condiments (Sweet n‘ Sour Sauce, BBQ Sauce and Ketchup) tested. Because it is made out of tomatoes which have to fight bacterias during growth.

How we did it: We prepared plates containing agar jelly and a nutrient broth with bacteria in it. Then we placed paper disks dipped in condiments, paper disks dipped in an antibiotic solution and plain paper disks (as controls) inside the bacteria colonies and left overnight in an incubator. Expecting for there to be an aura around the disks representing bacteria being inhibited.

The Results We Got: After having left the samples overnight and removed them from the incubator there were no visible auras around the paper disks. Showing that none of the condiments used had any antibiotic properties.

Evaluation: This experiment was a failure, as none of the condiments used showed any antibiotic properties. Yet these results can be explained through several limitations in the experiment. The plates were old and several of them covered in mold, this might have caused the bacteria to have died, therefore not making it possible for any substance to have given positive results. We were also used as guinea pigs by the teacher (Ms. Bickle) to try out the new type of antibiotic substance, which might have influenced the likelyhood of the experiments sucess.

Example of a sucessful Sample (Sarah Schroths) Example of an unsucessful Sample (Ours) - Clear and visible auras around paper - Clean Sample - Full coverage of area - No visible auras at all - Sample full of mold - Paper disks crammed in small area between mold spots

The Suffering: Giovanni Marchini Alex Kjellgren The Science Department: Anne Bickel (Special Thanks To For All The Support) Jay House John Kenny Michael Ford The Firms: McDonald’s™ Sweet and Sour Sauce McDonald‘s™ Barbeque Sauce Coop™ Ketchup WE’LL DO BETTER NEXT TIME…