Problems of Environmental Biotechnology

Anti-fouling properties of a protective coating based on alkyd enamel modified with a hydrophobic cationic biocide

2023-12-12T15:01:07+02:00

New hydrophobic cationic biocide 1-dodecylpyridinium dodecylbenzenesulfonate (PyrC₁₂-DBS) has been synthesized and evaluated as antifouling additive for protective coating based on alkyd enamel. Protective coatings, containing 10 weight percent of cationic biocide, were found to have high resistance to biofouling by aqueous micro- and macroorganisms.

Antibacterial activity of the cationic biocide 1-dodecylpyridinium tetrafluoroborate against multidrug-resistant strain of Acinetobacter baumannii

2023-12-12T14:48:27+02:00

Hydrophobic cationic biocide 1-dodecylpyridinium tetrafluoroborate (PyrC₁₂-BF₄) has been synthesized. The antibacterial activity of cationic biocide against antibiotic-resistant strains-isolates of Acinetobacter baumannii has been established. According to results of molecular docking, the inhibition of the active site FabG may be one of the possible mechanisms of anti-A. baumannii activity of the PyrC₁₂-BF₄.

Features of growing energy crop Camelina using the biological product "Baikal EM"

2023-12-12T14:39:58+02:00

A study of the peculiarities of growing the energy crop Camelina using the biological product "Baikal EM".

The significance of the introduction of plants for optimizing the state of tree ecosystems in the Dniprovian steppe of Ukraine

2023-12-12T14:03:51+02:00

Regional environmental safety issues have recently played a special role. Crimes against nature in the future should be considered with special care, since they have negative consequences for human existence in any region. Therefore, the scientific basis of regional environmental safety is necessary for the development of any social projects.

Investigation of the dynamics of action optima for some physicochemical factors in the course of complex optimization of conditions for the biosynthesis of amylolytic enzymes of microbial origin

2023-12-12T13:55:13+02:00

The most important factors in increasing efficiency are the composition of the nutrient medium, which can be optimized depending on the needs of microorganisms, and physicochemical factors that directly affect both the biosynthesis of amylolytic enzymes by the studied strain and the biosynthetic capacity of the strain in general. The aim of this work is to optimize the biosynthetic capacity of Streptomyces recifensis var. lyticus 2P-15 strain in terms of amylolytic enzyme synthesis. The object of study is the strain of Streptomyces recifensis var. lyticus 2P-15, obtained by three-stage selection of the producer. The simplex method of selecting the composition of the medium was used to perform the study.

New biological tools for the study of plant systems in modern biotechnology

2023-12-12T13:46:32+02:00

Genetic control is exerciesed at all stages of growth and development of the plant system. The plant metabolism is coordinated according to the integraction of direct and cross-talk between al vital systems, which are established and constantly evolve in the from of dynamic phenotypic effects. The acquisition of biological information improvement of methods and research.

European practices of bioenergy development for the modern world

2023-12-11T17:19:32+02:00

European practices of bioenergy development for the modern world are considered.

Study of protective properties of mucous substances of psyllium and chia seeds on probiotic cultures in bread-making technology

2023-12-11T16:42:36+02:00

The technology of preparation of bread sourdough starter with improved functional characteristics due to the addition of psyllium and chia seeds was investigated.

Technology of production of capsule forms of medicines in Ukraine

2023-12-11T16:31:59+02:00

The technology of production of capsule forms of medicines in Ukraine is considered.

Energy-informational properties of hydrolates and their effect on Bacillus bacteria

2023-12-11T12:56:06+02:00

In the present work, hydrolates were obtained from different plants: medicinal lemon balm (Melissa officinalis L.), medicinal hyssop (Hyssopus officinalis L. ), Tagetes erecta L., Sambucus nigra L., and Ginkgo biloba L., and studied their effect on the activity of bacteria of the genus Bacillus. The energy information properties of hydrolates were studied by the biolocation method.

Circular economy principles in the bioconversion of vegetable waste into biofertilizer

2023-12-11T12:46:23+02:00

A study was conducted on the processing of food waste, mainly vegetable waste, using the modern biopreparation "Baikal-EM" in 5 days. The effectiveness of this preparation has been proven, provided that expired bread is added in an amount of at least 10% of the total waste. The results of the research showed an increase in the biomass of fermenting microflora by 18%, which indicates that bread is a complete substrate for the growth and maintenance of working biomass, as it meets the nutritional needs.

European experience of waste management in the context of transition to a circular economy

2023-12-11T12:31:52+02:00

The European experience of waste management in the context of the transition to a circular economy is considered.

Using biomonitoring to assess the ecological state of soil in a technologically loaded area

2023-12-11T12:22:45+02:00

The aim of the study was to investigate the dependence of the growth characteristics of different plant species on the type of oil product that enters the soil.

Modifiers of microbial hydrolases among new types of biscytrate germanates

2023-12-06T19:18:35+02:00

The modifiers of microbial hydrolases among new types of biscytrate germanates are considered.

Purification and physicochemical properties of Bacillus sp. IMB B 7883 proteases

2023-12-06T19:10:35+02:00

The aim of the work was to isolate and purify these enzymes from the supernatant of the culture liquid of the producer strain Bacillus sp. IMV B-7883, as well as to study their physical and chemical properties and substrate specificity. Isolation and purification of the proteolytic complex of Bacillus sp. IMV B-7883 was carried out by classical biochemical methods: precipitation of the supernatant of the culture liquid with ammonium sulfate of 90% saturation, gel permeation and ion exchange chromatography and rechromatography on Sepharose 6B. As a result, elastase activity was increased by 63.6 times (4138 U/mg of protein) and fibrinogenolytic activity by 44.07 times (833 U/mg of protein). Like enzymes from other well-known producers, the investigated proteases were of low molecular weight, 23 and 20 kDa, respectively, for the protease with elastolytic and fibrinogenolytic activity. Unlike the elastases described in the literature, which are alkaline proteases, the enzyme with elastase activity had a pH-optimum of 7.0, while the enzyme with fibrinogenolytic activity was an alkaline protease with a pH-optimum of 8.0. Research on substrate specificity of enzymes showed the protease with elastase activity hydrolyzed only elastin, while the protease with fibrinogenolytic activity, in addition to fibrinogen, showed specificity also for fibrin and, in trace amounts, for collagen.

Agar as a raw material for pharmaceuticals in capsule forms

2023-12-06T18:54:05+02:00

Agar is considered as a raw material for drugs in capsule forms.

Energy aspects of oriental phytotherapy

2023-12-06T18:48:00+02:00

The energy aspects of oriental phytotherapy are considered.

Determination of the influence of viral infection on the sowing qualities of vegetable seeds

2023-12-06T18:36:22+02:00

The aim of the study was to determine the presence of viruses in the seeds of Solanaceae plants and their impact on seed quality.

Use of microbial exopolysaccharides in various industries

2023-12-06T18:29:48+02:00

Study the possibility of using specific and non-specific functions and properties of exopolysaccharides in practice.

Production features of the drug "Acylact"

2023-12-06T17:04:45+02:00

The peculiarities of production of the drug "Acylact" are considered.