Über die biogenen Amine der Puppe des Seidenspinners,Bombyx moriL.

Publisher Website
Google Scholar
Abstract
Traces of histidine together with larger quantities of lysine and arginine were found in the pupae of the silkworm, Bombyx mori L. Of the numerous monoamino acids present only tyrosine was obtained on the preparative scale. Choline and putrescine were also isolated. Spermidine and glycocoll betaine were present only in traces and were detected by paper chromatography. All the substances which had been detected in the caterpillars were also found in the pupae. It was not possible to carry out an accurate quantitative comparison between the caterpillars and the pupae as the amounts isolated diverge too much from the true content as a result of the complicated nature of the process. It can only be stated with certainty that the proportion of spermidine decreases markedly on pupation. Putrescine and cadaverine can be readily distinguished from spermine and spermidine by means of a modification of Dragendorff''s reagent with which only the latter give a red coloration. Previous findings by Japanese workers are thus confirmed while in addition lysine and especially spermidine have been detected.

This publication has 0 references indexed in Scilit: