[Antifungal and antimicrobial activity of beta-ionone and vitamin A derivatives].

The antifungal and antimicrobic activity of some derivatives of beta-ionon and vitamin A was studied. These compounds (citral, pseudo-ionon. beta-ionon aldehyde C14, ketone C18 and its derivatives--4,18-diketone, alcohol C18, semicarbazide ketone C18), as well as vitamin A and its derivatives--retinal, acetate, retinoic acid--differ in composition, structure and substituents of C-atoms in beta-ionon ring and in polyenoic chain.

[Effect of products of thermophilic methane fermentation on the conidial activation and citric acid biosynthesis by the fungus Aspergillus niger].

The effect of products of thermophilic methane fermentation (PTMF) and their hydrolyzates on the conidial germination and citric acid bioysnthesis by the fungus Aspergillus niger when cultivated on the synthetic and molasses media was investigated. An addition of the above products increased the amount of germinated conidia on the synthetic medium by 1.2--2 times and on the molasses medium by 1.