Cyanide formation in preparations from Chlorella vulgaris Beijerinck: Effect of sonication and amygdalin addition |
| |
Authors: | Hans-Siegfried Gewitz Elfriede K Pistorius Helga Voss Birgit Vennesland |
| |
Institution: | (1) Forschungsstelle Vennesland der Max-Planck-Gesellschaft, Harnackstraße 23, D-1000 Berlin 33, Germany |
| |
Abstract: | Summary A critical evaluation of a method for recovering HCN from cell extracts is presented. Since crude extracts often bind or metabolize HCN extensively, the HCN recovered by distillation at room temperature represents only the difference between production and consumption. Sonication leads to HCN release from the alga, Chlorella vulgaris Beijerinck. Illumination of extracts at high light intensity in oxygen, with added Mn2+ and peroxidase, also stimulates HCN production. In both processes, the HCN is probably formed by oxidation of nitrogenous precursors. Chlorella extracts cause formation of HCN from added amygdalin. No evidence was found, however, for the presence of cyanogenic glycosides in the algae. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|