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In the Shinoda test for flavonoids, a sample is added to pieces of magnesium and then hydrochloric acid is dripped on the sample. The color the sample turns indicates if there are flavonoids present or not.

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Chemical tests for flavonoids?

Common chemical tests for flavonoids include the Shinoda test, Folin-Ciocalteu test, and the sodium hydroxide test. The Shinoda test involves the addition of magnesium in the presence of concentrated hydrochloric acid, resulting in color changes. The Folin-Ciocalteu test uses a phenol reagent to detect flavonoid presence based on color development. The sodium hydroxide test involves the addition of sodium hydroxide solution to a flavonoid-containing sample to observe color changes.


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