compound that tends to shrink or constrict body tissues and precipitate the protein, and astringent forms a protective layer on the surface. – Due to their protein action, astringents can reduce cell permeability. – This reduces local edema, exudation, and inflammation. – The word “astringent” derives from the Latin “adstringere”, …
DeepakRajput 
Ferric Chloride Test
The Ferric Chloride Test is a common qualitative test used to identify the presence of tannins in a given sample. Tannins, being polyphenolic compounds, react with ferric chloride to produce a characteristic color change. Here’s how the Ferric Chloride Test for tannins is conducted: Procedure 1. Preparation of Sample: Obtain …
