Effects of a number of quinones and diphenols of various structures on free-radical fragmentation processes taking place in alpha-diols, glycerol, 2-aminoethanol, glycero-1-phosphate, ethylene glycol monobutyrate, maltose, and some lipids were investigated. Quinone additions have been found to change the direction of free-radical transformations of the compounds cited above by inhibiting formation of the respective fragmentation products owing to oxidation of radicals of the starting compounds. The results obtained and literature data available allow a suggestion to be made that the system quinone/diphenol is able to not only deactivate or generate such active species as O2.- but also control the realization probability of free-radical processes of peroxidation and fragmentation in biologically important molecules.
A method for improving the nutritional value of straw as a substrate for fungal growth by radiation is described. The conditions for fungal growth on a medium containing irradiated straw of winter rye were studied. It was found that the straw substrate improves both the quantity of carbohydrates and the quality of their composition in the nutrient medium. Easier accessibility of the irradiated substrate to enzymatic hydrolysis allows the time bioconversion of cellulose into protein to be reduced and the protein yield to be increased, thus improving the qualitative composition of the fungal biomass. The data obtained suggest a possibility of converting straw into a fodder product by substituting the method of using reagents for pretreatment by a simpler and less labour-consuming method.A most complete utilization of raw plant materials in the microbiological industry requires their pretreatment. Some methods were developed for hydrolysis of plant substrates [ 11. In spite of the great diversity of procedures used for hydrolysis of lignocellulosic substrates, the problem remains far from being efficiently solved. The search and development of more perfect methods for treating lignocellulose-containing raw materials are an urgent problem. The irradiation pretreatment of materials is one of such methods. In previous investigations [2, 31 it was shown that ionizing radiation may be an effective method to substitute alkaline or acid pretraetment. In this paper the conditions axe investigated for the mycelial growth on a substrate containing irradiated winter-rye straw.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.