This article describes simple methods for performing qualitative and quantitative analysis of Clerodendron colebrookianum leaves and Zingiber cassumunar rhizomes. The distribution of the main active principles (phlobatannins, flavonoids, alkaloids, saponins, tannins, terpenoids, steroids, glycosides and anthraquinones) in C. colebrookianum leaves and Z. cassumunar rhizomes were assessed. Both the plant materials were found to contain all the above components except for the absence of anthraquinones in both Z. cassumunar rhizomes and C. colebrookianum leaves, and absence of phlobatannin and glycosides in C. colebrookianum leaves. The importances of the distribution of these chemical constituents were discussed. This study provides scientific method to investigate the active components of the above mentioned plants.
Majaw, S. and Moirangthem, J.
"Qualitative and Quantitative Analysis of Clerodendron colebrookianum Walp. Leaves and Zingiber cassumunar Roxb. Rhizomes,"
5, Article 3.
Available at: http://opensiuc.lib.siu.edu/ebl/vol2009/iss5/3