Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2015 Sep 14;7(9):7764–7780. doi: 10.3390/nu7095365

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2015 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Phytochemical qualitative analyses of S. polyanthum leaf methanolic extract (ME): (A) Green-blue precipitate (b), indicating the presence of tannins (a: before; b: after ferric chloride reagent (Fe₂Cl₃) addition). (B) A light yellow color (b), indicating the presence of glycosides (a: before; b: after sodium hydroxide (aq) addition). (C) Green blue coloration (b), indicating the presence of flavonoids (a: before; b: after sulfuric acid (H₂SO₄) addition). (D) An orange color (b), indicating the presence of alkaloids (a: before; b: after Dragendorff’s reagent addition).