Tannins: Definition, Classification, Properties, and Tests for Identification

 Definition Tannins are a group of complex polyphenolic compounds found in many plants. They have the ability to form strong complexes with proteins, polysaccharides, alkaloids, and other macromolecules. Tannins are known for their astringent taste and their ability to precipitate proteins, which is why they are often used in tanning …

Gelatin Test

The Gelatin Test is a qualitative test commonly used to identify the presence of tannins in a given sample. Tannins, polyphenolic compounds, form complexes with proteins, leading to the precipitation of gelatin. Here’s how the Gelatin Test for tannins is conducted: Procedure 1. Preparation of Sample: Obtain a sample suspected …

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