Abstract
The article presents the results of the studies of the effectiveness of disinfection means, based on chlorinated guanidines, tetradic ammonium salts, dichlorisocyanuric acid, peracetic acid and hydrogen peroxide as to the contaminating microflora of sugar beets. There was investigated the influence of disinfectants on bacteria Bacillus subtilis, Leuconostoс mesenteroides, mycelia fungi Aspergillus niger, Penicillium chrysogenum and yeast Sacharomyses сerevisiae. It was experimentally established, that the studied means has the high effectiveness as to most microorganisms that cause saccharose losses in the process of its extracting from beet chip and result in worsening a technological quality of semi-products of beet-sugar. There was established the high effectiveness of modern disinfection means as to inhibiting slime-forming bacteria of Leuconostoc generis. There was proved a possibility of their use at different technological stages of beet-sugar production for preventing the development of mucous bacteriosis. It was determined that means consumption depends on a type and extent of microbiological contamination of raw materials, semi-products, technological waters at sugar production. There were established concentrations of the studied means as to inhibiting the development of main contaminants of the microflora of raw materials and semi-products in sugar production. There is offered to use the studied means in industrial beet-sugar production that would favor the decrease of microbial contamination of semi-products and the increase of a sugar output from a raw material unit.
Highlights
The course of microbiological process at extracting saccharose of beet chip causes its disintegration, creation of a series of acids, dextran that results in essential losses of saccharose at production, worsening of the white sugar quality and in separate cases – the decrease of productivity of a plant
The great amount of sporiferous bacteria were found in diffusion juice: Васillus subtilis, В. mesentericum, В. megatherium, В. mycoides, В. circulans, В. stearothermophilus, which activity is manifested in acid and gas formation, disintegration of saccharose into reducing substances, resulted in complications in the process of purification, filtration and crystallization of saccharose [3, 4]
Dextran creation by bacteria of Leuconostoc mesenteroides generis takes place as a result of saccharose disintegration, analogous to enzymatic inversion save that glucose is polymerized in dextran, and fructose is used for nourishing bacteria [7]
Summary
The course of microbiological process at extracting saccharose of beet chip causes its disintegration, creation of a series of acids, dextran that results in essential losses of saccharose at production, worsening of the white sugar quality and in separate cases – the decrease of productivity of a plant. Just the presence of soluble dextran in juices and semi-products causes most technological problems: the effectiveness of juice purification decreases, filtrating-sediment properties of residue worsen, evaporation speed decreases, heat transmission diminishes and so on [9, 10]. It results in decelerating the crystallization process, increase of duration of boiling massecuites that causes the decrease of factory capacities [11]. For decreasing losses of saccharose from microbiological disintegration, it is expedient to use disinfection means at different production stages, especially: at rinsing roots after washing, for processing juice-chip mixture in the diffusion apparatus, nutritious water and so on. The aim of the researches was to study the effectiveness of disinfection means, based on different active substances, namely: chlorinated guanidines, tetradic ammonium salts, dichlorisocyanuric acid, peracetic acid and hydrogen peroxide as to inhibiting the vital activity of microorganisms that favor most loses at the stage of getting diffusion juice in sugar-beet production
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