scholarly journals ВИЗНАЧЕННЯ ГІГІЄНІЧНИХ ВЛАСТИВОСТЕЙ ВКЛАДНИХ ІНДИВІДУАЛЬНИХ ЗАСОБІВ З ВСТАВКАМИ РОСЛИННОЇ СИРОВИНИ У ВЗУТТЯ

2022 ◽  
pp. 19-26
Author(s):  
MARYNA LESHCHYSHYN ◽  
OLGA IUNGIN
Keyword(s):  
Moisture Content ◽  
Raw Materials ◽  
Experimental Studies ◽  
Inhibitory Effect ◽  
Normative Values ◽  
Vapor Permeability ◽  
Aqueous Extracts ◽  
Plant Materials ◽  
Custom Made

Purpose: To conduct experimental studies of embedded hygienic installed insoles with tableted plant inserts in footwearMethodology. The properties of embedded hygienic insoles have been studied for vapor permeability and moisture content according to the methods of GOST 22900-78. The solid inserts were ground and extracted with distilled water for a week to obtain aqueous extracts for microbiological studies. Determination of antimicrobial activity was performed using a culture of S.aureus ATCC 25923 in microtiter 96-well plates in liquid nutrient medium NB spectrophotometrically by optical density (Hipo MPP-96, Biosan, λ = 620 nm, control medium – by the location of a non-sterile sample with (30 × 30 mm) on the surface of sterile NA medium.Findings. To improve the hygienic characteristics of the inner space of the shoe, the research presents embedded hygienic products with solid inserts in the form of tablets from the plant raw materials of medicinal thyme and sage. The technological characteristics of tableted inserts from vegetable raw materials are given. The results of vapor permeability and moisture content in the studied samples are obtained, which correspond to the normative values according to GOST 940-81 and are safe for human feet.Originality. Determination of indicators of vapor permeability and moisture content of embedded hygienic installed insoles with tableted plant inserts and establishing their compliance with regulatory requirements. Determined the regularities of inhibitory effect of aqueous extracts of thyme on the growth of biomass of gram-negative bacteria in planktonic culture.Practical value. Another advantage of custom-made shoes is the ability to consider the customer's preferences regarding shoe care products during the operation. At the same time, an important task is to ensure the hygiene of the inner space of the shoe through the use of insoles containing elements obtained from medicinal plant materials.

scholarly journals The Safety Assessment of Toxic Metals in Commonly Used Herbs, Spices, Tea, and Coffee in Poland

2021 ◽  
Vol 18 (11) ◽  
pp. 5779
Author(s):  
Grażyna Kowalska
Keyword(s):  
Heavy Metals ◽  
Environmental Protection Agency ◽  
Inductively Coupled Plasma ◽  
Raw Materials ◽  
Hazard Quotient ◽  
World Health Organisation ◽  
World Health ◽  
Target Hazard Quotient ◽  
Plant Materials

The presented study was aimed at the determination of the level of contamination with heavy metals (Cd, Pb, As, and Hg) in 240 samples of plant materials, i.e., herbal raw materials, spices, tea, and coffee. Moreover, a probabilistic risk assessment (noncarcinogenic and carcinogenic risks) was estimated by models including target hazard quotient (THQ) and cancer risk (CR). The samples were subjected to microwave mineralisation with the use of HNO3 (65%), while the determination of the content of the elements was performed with the use of inductively coupled plasma mass spectrometer (ICP–MS) and a mercury analyser. The element which was characterised by the highest level of accumulation in the analysed samples was lead (from 0.010 to 5.680 mg/kg). Among the heavy metals under analysis, the lowest concentration was noted in the case of mercury (from 0.005 to 0.030 mg/kg). A notably higher level of contamination with heavy metals was noted in the analysed samples of herbs and spices (0.005–5.680 mg/kg), compared to samples of tea and coffee (0.005–0.791 mg/kg). According to the guidelines of the World Health Organisation (WHO) concerning the limits of contamination of samples of herbal raw materials with heavy metals, lead levels exceeding the limits were only noted in 24 samples of herbs (18%). In all of the analysed samples of spices, tea, and coffee, no instances of exceeded limits were noted for any of the analysed heavy metals. The values of TTHQmax (in relation to the consumption of the analysed products) were as follows: up to 4.23 × 10−2 for spices, up to 2.51 × 10−1 for herbs, up to 4.03 × 10−2 for China tea, and up to 1.25 × 10−1 for roasted coffee beans. As the value of THQ ≤1, there is no probability of the appearance of undesirable effects related to the consumption of the analysed group of raw materials and products of plant origin. The CR value for As (max. value) was 1.29 × 10−5, which is lower than the maximum acceptable level of 1 × 10−4 suggested by United States Environmental Protection Agency (USEPA).

Calculation of Technical Characteristics of the Technical Fleet Vessels Involved in Ensuring Safety of the Offshore Facilities of Oil and Gas Complex

2021 ◽  
pp. 7-13
Author(s):  
S.V. Matsenko ◽  
◽  
V.M. Minko ◽  
A.A. Koshelev ◽  
V.Yu. Piven ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Oil Pollution ◽  
Raw Materials ◽  
Experimental Studies ◽  
Industrial Safety ◽  
Theoretical Studies ◽  
Physical Processes ◽  
Oil Spill Response ◽  
Sea Area

Violation of industrial safety rules during the operation of offshore facilities for the production, storage and transportation of the hydrocarbon raw materials leads in the most cases to pollution of the marine environment with oil and its components. The works on localization and elimination of such pollution are carried out with the help of vessels of the technical support fleet and booms. When developing oil spill response plans at such facilities, a calculated determination of the technical characteristics of vessels and booms is required that are sufficient to carry out the planned activities. The basic design principles for determining the towing capacity of the technical fleet vessels involved in the localization and elimination of oil and oil product spills by trawling methods are given in the article. The calculation is based on theoretical studies performed by the authors of the physical processes occurring during the movement of objects of a mobile trawling order in the sea area. The results obtained during the course of theoretical studies were confirmed by the experimental studies carried out by the authors personally using the real pieces of equipment in the actual development of tasks for training spill containment by trawling. As a result, the empirical dependencies were obtained and experimentally confirmed, which can be used to calculate technical characteristics of the ships as part of the mobile orders and anchor systems as part of stationary orders intended for the localization and elimination of oil pollution. These results can be used, among other things, for the calculated substantiation of the technical characteristics of the technical fleet vessels designed to ensure safety of the offshore facilities for production, storage, and transportation of the hydrocarbon raw materials.

scholarly journals Formula and Technology Development for Obtaining Biologically Active Natural Food Additives

2019 ◽  
Vol 48 (3) ◽  
pp. 105-114 ◽  
Author(s):  
Станислав Смирнов ◽  
Stanislav Smirnov ◽  
Олия Фазуллина ◽  
Oliya Fazullina
Keyword(s):  
Dietary Supplements ◽  
Raw Materials ◽  
Import Substitution ◽  
Food Additives ◽  
Experimental Studies ◽  
Scientific Data ◽  
Biologically Active ◽  
Natural Food ◽  
Plant Materials ◽  
Natural Components

The research featured the development of formulae and technologies for the production of biologically active additives (BAA) for functional foods with potential adaptogenic, antioxidant, and hepatoprotective properties. Shilajit, a natural mineral-organic substrate, and various plant materials were used as sources of natural biologically active substances (BAS). The relevance of the study comes from the need for more efficient use of natural biologically active compounds, as well as from the need to expand the range of domestic dietary supplements with natural ingredients, which resulted from the current import substitution. Scientific data and experimental studies made it possible to choose advantageous raw materials with BAS and to assess their safety and potential properties. An experiment determined the content of BAS in the raw materials and in the control samples. A compatibility test wasconducted by mixing. As a result, five formulae with various combinations of natural components in the composition were scientifically substantiated. The authors defined the physicochemical and technological properties of the mixtures of dry extracts that determined the choice of technology and the quality of the finished product. The present paper also describes technology of obtaining encapsulated dietary supplements based on dry extracts of medicinal plants and shilajit. The advantage of the technology lies in the use of natural components and special processing methods of BAS preservation. The research included the method of water-activated granulation while 20% ethyl was used as a wetting agent. To obtain the granulate, lactose (Russia) and AEROSIL® 200 Pharma (Evonik Industries, Germany) were used as additive agents. As a result, capsules with a dosage of 700 mg were developed. The BAA can be produced on food and pharmaceutical plants.

scholarly journals SUBSTANTIATION OF ENERGY EFFICIENT REGIMES OF DRYING PRODUCTS FRACTIONAL PROCESSING OF ALFALFA

2021 ◽  
pp. 142-151
Author(s):  
Anatolii Spirin ◽  
Ihor Tverdokhlib ◽  
Ihor Kupchuk ◽  
Julia Poberezhets
Keyword(s):  
Moisture Content ◽  
Experimental Studies ◽  
Total Duration ◽  
High Energy ◽  
Theoretical Research ◽  
Electric Heater ◽  
Successful Implementation ◽  
Drying Process ◽  
Drying Time ◽  
Plant Materials

Shortage of quality feed significantly slows down the production of livestock products in Ukraine. One of the ways to overcome the crisis in the production of feed is the use of new high-energy feed, including the products of fractional processing of alfalfa. For the successful implementation of the skin type of feed, including the products of fractional processing of alfalfa, there should be an opportunity to create their reserves, feed should be canned for successful storage. The best way to preserve food is to dry it. Energy efficiency of the drying process, ie loss of nutrients, energy costs for the implementation of the process, etc. It depends on the method and its mode parameters. In this case, it is proposed to carry out the drying process in a thick layer of alfalfa pulp by active ventilation with heated air. To determine the rational parameters of the process, such as layer thickness, air flow, drying time and patents to conduct theoretical and experimental studies. Alfalfa pulp, like most wet plant materials, belongs to the capillary-porous bodies. The drying blood of these bodies has two distinct periods: constant and decreasing speeds (or the first and second drying periods). The moisture content of the material at which the transition from the first to the second period is called critical. As a result of theoretical research has obtained a dependence that determines the total duration of the drying process on a number of parameters, including initial, critical, equilibrium and final moisture content. To determine these coefficients, as well as to check the adequacy of the obtained dependence, experimental studies were conducted on a special installation. The main elements of the experimental setup are a fan, electric heater, containers with mass, shut-off, control and measuring equipment. According to the results of experimental research, graphical dependences of drying speed and process duration on regime parameters are obtained.

scholarly journals Study of the efficiency of the inhibitory effect of antimicrobial preparations in the production of sugar substances

2021 ◽  
pp. 43-49
Author(s):  
Nataliia Husiatynska ◽  
Svitlana Teterina ◽  
Nataliia Hryhorenko ◽  
Olha Kalenik
Keyword(s):  
Thermophilic Bacteria ◽  
Raw Materials ◽  
Experimental Studies ◽  
Inhibitory Effect ◽  
Cane Sugar ◽  
Mycelial Fungi ◽  
Microbiological Processes ◽  
Pure Cultures ◽  
Research Objects ◽  
Vegetable Raw Materials

This article presents the relevance of the issue of inhibition of microbiological processes at different stages of processing of sugar-containing raw materials, in particular ensuring the microbiological purity of juices and syrups in the production of sugar substances. Information on the composition of microbiota contaminating raw materials in the production of beet sugar, raw cane sugar, food syrups from sugar sorghum is analyzed. Experimental data on the evaluation of the effectiveness of a number of antimicrobial preparations in terms of growth retardation of pure cultures of microorganisms and the effect of disinfection during the introduction of preparations are presented. The greatest danger in production is caused by the development of spore-forming and mucus-forming bacteria, which led to the choice of research objects. Thus, the effect of antimicrobial preparations on microorganisms: mesophilic bacteria Bacillus subtilis, B. megatherium, thermophilic bacteria B. stearothermophilus, mucus-forming bacteria of the genus Leuconostos, was investigated. In addition, the effect of antimicrobials on mycelial fungi of the genus Aspergillus was studied. Based on the conducted experimental studies, the range of costs of the studied antimicrobial preparation for the suppression of contaminating microflora in the production of sugar and food syrups from vegetable raw materials was determined

scholarly journals STANDARDIZATION PROBLEMS OF MEDICINAL PREPARATIONS FROM RHODIOLA ROSEA L.

2021 ◽  
Vol 9 (3) ◽  
pp. 185-194
Author(s):  
V. A. Kurkin ◽  
T. K. Ryazanova
Keyword(s):  
Raw Materials ◽  
Statistical Processing ◽  
Reversed Phase ◽  
Biologically Active ◽  
Rhodiola Rosea ◽  
Plant Materials ◽  
Liquid Extract ◽  
Medicinal Preparations ◽  
Methodological Approaches

Rhodiola rosea L. rhizomes and roots are pharmacopoeial raw materials, which are used in official medicine for obtaining medicines with adaptogenic activity. One of the most common problems in the production of medicines from Rhodiola rosea L. rhizomes and roots is the use of poor quality medicinal plant materials, which leads to the absence of biologically significant compounds in the preparations. One of the possible reasons is the shortcomings in the existing approaches to the standardization of Rhodiola rosea L. raw materials and preparations.The aim of the study is the improvement of approaches to the standardization of medicinal preparations from Rhodiola rosea L. rhizomes and roots.Materials and methods. Experimental and industrial samples of liquid extract from Rhodiola rosea L. roots, as well as reference samples of rosavin and salidroside, were used as materials of the research. The HPLC analysis was carried out using a Milichrom-6 chromatograph (NPAO Nauchpribor) under the following conditions of reversed-phase chromatography in an isocratic mode: a steel column KAKH-6-80-4 (2 mm x 80 mm; Separon-C18 7 μm), a mobile phase – acetonitrile: 1% solution of acetic acid in water in the ratio of 14:86, the elution rate was 100 μL/min, the eluent volume was 2000 μL. The constituents were detected at the wavelength of 252 nm (rosavin) and 278 nm (salidroside).Results. An assay of rosavin and salidroside in the liquid extract of Rhodiola rosea L. was developed using the HPLC method. It was determined that the content of rosavin in the samples of the liquid extracts obtained from Rhodiola rosea L. rhizomes and roots of the pharmacopoeial quality, varied from 0.21%±0.03% to 0.32%±0.04%, salidroside – from 1.13% ±0.05% to 2.71%±0.12%, respectively. The results of statistical processing indicate that the relative error of the average result for the determination of rosavin and salidroside in the preparations of Rhodiola rosea L. with a confidence level of 95% does not exceed ±6.0%.Conclusion. Thus, methodological approaches to the analysis of medicinal preparations from Rhodiola rosea L. rhizomes and roots have been substantiated. These methodological approaches consist of the quantitative determination of the dominant and diagnostically significant biologically active compounds – rosavin and salidroside.

scholarly journals Aspects of non-grain part harvesting for corn and sunflower as solid biofuels

2019 ◽  
pp. 10-20
Author(s):  
Adamchuk, V. ◽  
Kuzmenko, V. ◽  
Kuzmych, A. ◽  
Maksimenko, V.
Keyword(s):  
Raw Materials ◽  
Experimental Studies ◽  
Complete Collection ◽  
Final Choice ◽  
Energy Needs ◽  
Solid Biofuels ◽  
Solid Biofuel ◽  
Sunflower Crop ◽  
Technical And Economic Indicators

Purpose. Identification of promising technologies for harvesting the non-cereal part of the corn and sunflower crops, which provide for the controlled collection of quality products in accordance with the needs. Methods. Analysis of common technological processes of harvesting straw and stem feed, the non-grain part of the corn and sunflower harvest, the synthesis of options for harvesting individual parts of the non-grain part of the corn and sunflower crop and evaluating them by the possible harvest, experimental determination of the full harvest for a particular process. Results. Synthesized and analyzed options for harvesting the non-cereal part of the corn and sunflower crops, which can be used in modern agricultural production. The analysis of the non-cereal part of the corn and sunflower harvest was carried out. The proportion of the non-cereal part of the corn and sunflower crops, which can be collected with various harvesting options, has been established. Experimental studies have been carried out of individual operations of collecting the non-grain part of the corn and sunflower crops. Conclusions. Harvesting the stem mass in a compacted form (rolls, bales) for energy needs is more appropriate than in loose form. Farms that grow corn and sunflower choose the technology of harvesting the non-cereal part of the crop, depending on the area of sowing of crops and needs in the stem mass. The investigated options for harvesting the non-cereal part of the crop provide a complete collection of the stem mass from 3.5 to 85.4%. The final choice of the option of harvesting raw materials is determined not only by the completeness of the collection of raw materials, but also by its technical and economic indicators. Keywords: non-cereal part of corn and sunflower harvest, technology of harvesting non-cereal part, solid biofuel.

scholarly journals Quantitative Determination of Arbutin and Hydroquinone in Different Plant Materials by HPLC

2012 ◽  
Vol 40 (2) ◽  
pp. 109 ◽  
Author(s):  
Izabela RYCHLINSKA ◽  
Slawomira NOWAK
Keyword(s):  
High Performance ◽  
Raw Materials ◽  
Hplc Method ◽  
Fast Method ◽  
Optimum Conditions ◽  
Plant Materials ◽  
Ledum Palustre ◽  
Relative Standard ◽  
First Time

A simple, fast method of high-performance liquid chromatography for the determination and quantification of arbutin and hydroquinone in many different raw materials was developed and validated. The optimum conditions for the separation and detection of these two constituents were achieved on a LiChro-CARD 125-4 Superspher®100 RP-18 column with the water-methanol (gradient elution) mobile phase and recorded at 289 nm. The purities of peaks were verified by PDA analysis of impurities. The results of validation have shown that the HPLC method is stable and accurate for the simultaneous determination of arbutin and hydroquinone in extracts from various plants. The developed method gave a good sensitivity (LOD 1µg/ml for arbutin and 0.49 µg/ml for hydroquinone) with linearity R2 >0.9993 (for both). The relative standard deviation of the method was less than 2.53% for intra-day assays and 3.23% for inter-day assay, the accuracy of the recovery test ranged from 98.96% to 106.4%. This method was used in comparative qualitative analysis of arbutin and hydroquinone in 16 different raw materials from families Lamiaceae, Ericacaeae, Saxifragaceae, Rosaceae. The content of arbutin in B. ciliata, B. cordifolia and Ledum palustre was examined for the first time.

scholarly journals Determination of Optimal Roasting Conditions for the Production of Gabou

2019 ◽  
Vol 8 (5) ◽  
pp. 48
Author(s):  
Maman M. Rabiou ◽  
Chaibou Yaou ◽  
Mamadou Lewamy ◽  
Idrissa Moussa ◽  
Haoua Sabo ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Moisture Content ◽  
Palm Oil ◽  
Raw Materials ◽  
Negative Influence ◽  
Sensory Characteristics ◽  
Green Leaves ◽  
Sensory Analyses ◽  
Proximate And Mineral Composition

Gabou is a traditional onion-based spice commonly used in Niger. It is prepared in a handcrafted way by roasting of dried onion. This study was conducted to determine the optimal roasting conditions. The traditional processes of Gabou manufacturing were identified through a survey and studied. Gabou were produced at different roasting temperatures and times in presence of the oil quantities in the laboratory. Then sensory analyses were conducted to select the Gabou of best sensory characteristics. The chemical composition of the selected Gabou and their raw materials was determined. The result of the investigation showed that flower stems, green leaves and onion bulbs were used in the production of Gabou. The optimal roasting conditions were obtained at 120°C for 8 min for bulbs Gabou, 120°C for 5 min for green leaves Gabou and 130°C for 11 min for flower stems Gabou in the presence of 1 ml, 2 ml and 0 ml palm oil per 30 g, respectively. Roasting conditions that led to the production of Gabou of good sensory characteristics did not have a significant negative influence (p<0.05) on proximate and mineral composition. On the contrary, they have significantly reduced the moisture content which contributes to the reduction of Gabou shelf life.

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