Evaluating Derris and Cubé: The Question of Total Exractive Content

Publisher Website
Google Scholar
Abstract
The total extractive content of derris and cube roots is being detd. in a wide variety of solvents by various laboratories. The present research was done to determine what solvent and method would most readily extract all the toxic substances with the least amt. of non-toxic material. Acetone extracts of the marcs from chloroform, benzene and ether extractions of root samples were tested on mosquito larvae: marcs from ether and benzene were appreciably toxic; those from chloroform were in general non-toxic. The simplest procedure for obtaining the total extractive content, and one which gives an accurate measure of the toxic material, is evidently a determination made on an aliquot of a room-temp., chloroform extract of the root.

This publication has 1 reference indexed in Scilit: