Related Experiment Video

Updated: Jun 2, 2026

The Efficacy and Underlying Pathway Mechanisms of ShiDuGao Treatment for Anus Eczema Based on GEO Datasets and Network Pharmacology
12:34

The Efficacy and Underlying Pathway Mechanisms of ShiDuGao Treatment for Anus Eczema Based on GEO Datasets and Network Pharmacology

Published on: January 12, 2024

Dammarane-type saponins from Gynostemma pentaphyllum

Ji Ho Kim1, Yong Nam Han

  • 1Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea.

Phytochemistry
|May 14, 2011
PubMed

More Related Videos

Employing Pressurized Hot Water Extraction (PHWE) to Explore Natural Products Chemistry in the Undergraduate Laboratory09:48

Employing Pressurized Hot Water Extraction (PHWE) to Explore Natural Products Chemistry in the Undergraduate Laboratory

Published on: November 7, 2018

Related Concept Videos

Esters to Carboxylic Acids: Saponification01:25

Esters to Carboxylic Acids: Saponification

Esters can be hydrolyzed to carboxylic acids under acidic or basic conditions. Base-promoted hydrolysis of esters is a nucleophilic acyl substitution reaction in which esters react with an aqueous base, followed by an acid to give carboxylic acids. This reaction is also known as saponification because it forms the basis for making soaps from fats.
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...