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Phytochemical Screening of Secondary Metabolites | Chemical Test of Secondary Metabolites (ENGLISH)

Download the "Solution Pharmacy" Mobile App to Get All Uploaded Notes, Model Question Papers, Answer Papers, Online Tests and other GPAT Materials - https://play.google.com/store/apps/de... Phytochemical Screening of Secondary Metabolites | Chemical Test of Secondary Metaboliltes (HINDI)    • Phytochemical Screening of Secondary ...   Phytochemical screening is a process used to identify and analyze the presence of various secondary metabolites in plants. Secondary metabolites are organic compounds that are not directly involved in the growth, development, or reproduction of plants but often play important roles in their defense mechanisms and interactions with the environment. These compounds have diverse chemical structures and biological activities. Phytochemical screening involves the use of various chemical and biochemical tests to detect specific classes of secondary metabolites. Here are some commonly screened secondary metabolites and the tests used to identify them: a. Alkaloids: 1. Mayer's test: Precipitation of alkaloids with Mayer's reagent (potassium mercuric iodide). 2. Dragendorff's test: Formation of orange/red precipitate with Dragendorff's reagent (potassium bismuth iodide). 3. Hager's test: Formation of yellow precipitate with Hager's reagent (picric acid). b. Flavonoids: 1. Shinoda test: Formation of pink, red, or violet color with Shinoda reagent (magnesium hydrochloric acid). 2. Aluminum chloride test: Formation of yellow color with aluminum chloride solution. 3. Lead acetate test: Formation of white or yellow precipitate with lead acetate solution. c. Tannins: 1. Ferric chloride test: Formation of blue-black or greenish-black precipitate with ferric chloride solution. 2. Gelatin test: Formation of a precipitate or turbidity with gelatin solution. d. Terpenoids: 1. Salkowski test: Formation of red coloration in the presence of concentrated sulfuric acid. 2. Bornträger's test: Formation of red coloration in the presence of dilute sulfuric acid and heating. e. Saponins Froth test: The plant extract or sample is vigorously shaken with water or diluted ethanol. The formation of a stable froth that persists for a significant period indicates the presence of saponins. Get in touch with the solution by just clicking the following links- Facebook Group-   / solutionpharamcy   Mobile App - https://play.google.com/store/apps/de... New Channel (Pharmacy Dictionary)    / @pharmacydictionary   E-Mail for official and other work - [email protected] #solutionpharmacy #Pharmacologyclass #Pharmacognosyvideos #GPAT