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Food Ingredients

Quiz: How much do you know about cat and dog kibble?

Test your knowledge of the chemistry behind the dry food that makes our pets salivate.

by Andy Brunning, special to C&EN
October 7, 2024

 

Before you take our quiz on The chemistry of cat and dog kibble, make sure you check out our Periodic Graphic for some helpful hints.

Which of the following makes up the highest percentage of dog kibble by weight?
What is the approximate percentage of protein (by weight) in cat food?
Which amino acid do cats have to obtain from their food?
Dogs can synthesize taurine from cysteine and which other amino acid?
Which phosphates do manufacturers add to kibble to make it more appealing to cats?
Scientists think pyrophosphates intensify the flavor of which types of compounds?
What types of compounds are the palatants putrescine and cadaverine?

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