scholarly journals Influence of qualitative composition of raw materials on the production of hydrogen by microorganisms

2013 ◽  
Vol 55 (2) ◽  
Author(s):  
Н. Б. Голуб ◽  
Д. І. Жураховська ◽  
В. Л. Чумак
Keyword(s):  
Raw Materials ◽  
Qualitative Composition ◽  
Production Of Hydrogen

Content of amino acids in raw materials of somespecies of ASTERACEAE family

Fitoterapia ◽  
2020 ◽  
Vol 3 (3) ◽  
pp. 44-50
Author(s):  
S.M. Marchyshyn ◽  
◽  
L.V. Slobodianiuk ◽  
R.Yu. Basaraba ◽  
N.А. Hudz ◽  
...  
Keyword(s):  
Amino Acids ◽  
High Performance Liquid Chromatography ◽  
Free Amino ◽  
High Performance ◽  
Raw Materials ◽  
Essential Amino Acids ◽  
Qualitative Composition ◽  
Quantitative Content ◽  
First Time ◽  
Asteraceae Family

Keywords: amino acids; common pussytoes; yacon; stevia; golden marigolds; leaves; herb; aster family; high performance liquid chromatography. For the first time the qualitative composition was studied and the quantitative content of amino acids in the herb of common pussytoes, yacon leaves, stevia leaves, herb of golden marigolds was determined by HPLC. 17 bound and 16 free amino acids were identified in the herb of common pussytoes, in the herb of golden marigolds, yacon leaves and stevia leaves – 12 and 5, 17 and 11 and 16 and 14 amino acids, respectively. The highest content of the sum of essential and substitute amino acids is contained in the leaves of stevia; the lowest content of the sum of essential amino – in the herb of golden marigolds, the sum of essential amino acids – in the herb of common pussytoes.

scholarly journals FLAVONOIDS OF IRIS SIBIRICA L. GROWN IN VITRO CULTURE

2021 ◽  
pp. 301-308
Author(s):  
Olesya Nikolayevna Mazko ◽  
Lyudmila Ivanovna Tikhomirova ◽  
Lyudmila Vladimirovna Shcherbakova ◽  
Natal'ya Grigor'yevna Bazarnova ◽  
Dmitriy Alekseyevich Karpitsky
Keyword(s):  
In Vitro Culture ◽  
High Performance ◽  
Raw Materials ◽  
Quantitative Composition ◽  
Qualitative Composition ◽  
Nutrient Media ◽  
Qualitative And Quantitative ◽  
Clonal Micropropagation ◽  
Intact Plants

The aim of this study was to evaluate the effect of 6-benzylaminopurine (BAP) separately and in interaction with auxins on the change in the qualitative and quantitative composition of flavonoids in the raw materials of regenerating plants Iris sibirica L. Cambridge grade in comparison with aeroponic and intact raw materials using the method of high-performance liquid chromatography. Raw materials of I. sibirica Cambridge variety obtained in vitro culture had a richer qualitative composition of flavonoids than intact plants. The dependence of the accumulation of flavonoids on the concentration of 6-benzylaminopurine in nutrient media was noted. The presence of 13 compounds was observed in extracts of 70% ethyl alcohol from regenerating plants grown at the lowest concentration of BAP (1.0 µM) within the experiment. In quantitative terms, the flavonoid apigenin was maximally determined on a medium with BAP 1 µM, and kaempferol - on media with BAP 5.0 µM, supplemented with auxins. For a medium with 7.5 µM BAP, the lowest variety of compounds was observed (9) and the lowest kaempferol content. Auxins influenced the synthesis of flavonoids. The amount of flavonoids in all variants of the experiment increased by an average of 13% in the presence of auxins. The stages of the technological process of obtaining raw materials I. sibirica Cambridge variety on the basis of clonal micropropagation and cultivation in aeroponics conditions allowed to obtain raw materials that do not contain heavy and toxic metals, are not infected with pathogens and pests. With 1 m2 of useful area of aeroponics for 1 year, it is possible to collect 5 times more raw materials than with field cultivation. According to the qualitative composition of phenolic compounds, aeroponic raw materials are identical to intact plants.

scholarly journals Analysis of the criteria of efficiency of work of separators for the field of hydrocarbon raw

2019 ◽  
pp. 114-119
Author(s):  
Valeriy V. Piven ◽  
Vladislav S. Shchelkonogov
Keyword(s):  
Technological Process ◽  
Raw Materials ◽  
Comprehensive Assessment ◽  
Technological Scheme ◽  
Qualitative Composition ◽  
Separation Processes ◽  
Process Flow ◽  
Multi Stage ◽  
Flow Diagrams

Assessment of the quality of separation of hydrocarbon raw during its field preparation is necessary to determine the efficiency of the entire technological process of preparation. The absence of complex criteria for assessing the quality of separation for multi-stage processes does not allow one to obtain unambiguous solutions in justifying the process flow diagrams and equipment for separation. We have analyzed the typical technological scheme of separation of hydrocarbon raw materials and existing criteria for separation processes. It is proposed to use the criterion for a comprehensive assessment of the separation processes of hydrocarbon raw materials, allowing calculating the efficiency of the process, taking into account the possible production of intermediate fractions and their qualitative composition

scholarly journals Characterization of dusts from secondary copper production

2020 ◽  
Vol 56 (2) ◽  
pp. 221-228
Author(s):  
D. Orac ◽  
M. Laubertova ◽  
J. Piroskova ◽  
D. Klein ◽  
R. Bures ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Hazardous Waste ◽  
Raw Materials ◽  
Shaft Furnace ◽  
Copper Production ◽  
Qualitative Composition ◽  
Furnace Shaft ◽  
Secondary Raw Materials ◽  
The Individual

Various types of waste, including dusts, are produced in the pyrometallurgical production of copper from secondary raw materials. According to the European Waste Catalogue and Hazardous Waste List, dusts from secondary copper production are classified as hazardous waste. In secondary copper production 3.87 million tons of copper were produced worldwide in 2017. The dusts are produced in the following thermal operations: reduction of the melt in the shaft furnace (shaft furnace dust), converting (converter dust), and pyrometallurgical refining (refining dust). These dusts contain significant amounts of heavy metals (Zn, Pb, and Sn) in oxidic forms. The dusts are regarded as secondary raw materials, and it is necessary to look for ways of extracting these heavy metals. The aim of this work was to characterize the individual types of dust and determine their quantitative and qualitative composition. The content of heavy metals in copper shaft furnace dust is (52.16% Zn, 19.33% Pb), in copper converter dust (32.40% Zn, 14.46% Pb), and in refining dust (32.99% Zn).

Pressurized entrained-flow pyrolysis of lignite for enhanced production of hydrogen-rich gas and chemical raw materials

2020 ◽  
Vol 145 ◽  
pp. 104741 ◽  
Author(s):  
Arash Tahmasebi ◽  
Kristina Maliutina ◽  
Tawanda Matamba ◽  
Jong-Ho Kim ◽  
Chung-Hwan Jeon ◽  
...  
Keyword(s):  
Raw Materials ◽  
Entrained Flow ◽  
Enhanced Production ◽  
Production Of Hydrogen

scholarly journals Determination of carbohydrates and fructans content in Cyperus esculentus L.

Pharmacia ◽  
2021 ◽  
Vol 68 (1) ◽  
pp. 211-216 ◽  
Author(s):  
Svitlana Marchyshyn ◽  
Liliia Budniak ◽  
Liudmyla Slobodianiuk ◽  
Iryna Ivasiuk
Keyword(s):  
Spectrophotometric Method ◽  
Raw Materials ◽  
Total Content ◽  
Cyperus Esculentus ◽  
Qualitative Composition ◽  
Active Ingredients ◽  
Quantitative Content ◽  
Lack Of Information ◽  
Free Carbohydrates

The tiger nut contains different active ingredients like oil, tannins, sterols, saponins, alkaloids, vitamins C and E, minerals, and resins. There is a lack of information about carbohydrates content of Cyperus esculentus L. Thus, the aim of this study was to determine the content of carbohydrates of tiger nut herb and tubers. The qualitative composition and quantitative content of carbohydrates in tubers and herb of tiger nut (Cyperus esculentus L.) were determined by using a GC/MS method. The results of analysis showed that tiger nut herb have free carbohydrates, namely D-saccharose, D-glucose, D-Mannitol, and D-fructose, while tubers have only disaccharide D-saccharose. Free D-saccharose presented in raw materials in the greatest amount, the content in tubers was 63.72 mg/g, in the herb – 9.79 mg/g, respectively. Monosaccharides and their derivatives after hydrolysis presented to D-glucose, D-xylose, D-galactose, D-arabinose in tubers, and D-xylose, D-glucose, D-arabinose, D-galactose, D-Dulcitol, D-Mannitol, D-mannose in the herb of tiger nut. D-glucose dominates in tubers and D-xylose in the herb, their content was 177.26 mg/g and 39.07 mg/g, respectively. The total content of fructans was determined by the spectrophotometric method. Its content was 13.49% in tubers and 8.78% in the herb of tiger nut.

scholarly journals CONVERSION OF CO2 TO HYDROCARBON SYNFUEL BY UTILIZING NUCLEAR HYDROGEN COGENERATION

2018 ◽  
Vol 41 (1) ◽  
pp. 51-59
Author(s):  
Djati H Salimy
Keyword(s):  
Co2 Emissions ◽  
Coal Gasification ◽  
Raw Materials ◽  
Liquid Hydrocarbon ◽  
Raw Material ◽  
Literature Study ◽  
Synthetic Fuels ◽  
Coal Consumption ◽  
Gasification Process ◽  
Production Of Hydrogen

A study of the utilization of hydrogen cogeneration with nuclear energy as a technology for the conversion of CO2 into synthetic liquid hydrocarbon fuels has been carried out. The aim of the study is to understand the conversion of CO2 and H2 into synthetic fuels, as well as the role of nuclear hydrogen cogeneration for the production of hydrogen and as a source of process heat energy. The method used is literature study based on the results of existing research. Conventionally, synthetic fuel production from coal is produced through coal gasification process, followed by reacting synthesis gas (mixture of CO and H2) in FT reactor to synthesis fuel. In this study, we studied the production of synthetic fuels with CO2 and H2 raw materials. CO2 comes from emissions of coal-fired plants, whereas H2 is produced by nuclear hydrogen cogeneration systems. The results show that compared to conventional processes, CO2 and H2-based processes supported by coal cogeneration systems provide significant advantages in terms of CO2 emissions. The process based on coal gasification and nuclear cogeneration, capable of reducing emissions by up to 75% and saving up to 40% of coal consumption. While the process based only on CO2 and nuclear hydrogen cogeneration (without coal gasification), teoretically can operate witout any CO2 emission at all. Even this process can captured and utilize CO2 emissions from coal fired plant, and use it as a raw material for the process.

DEVELOPMENT OF RESOURCE-SAVING TECHNOLOGICAL LINE FOR OBTAINING HIGH-QUALITY PRODUCTS FROM PUMPKIN SEEDS

2019 ◽  
Author(s):  
В.В. ДЕРЕВЕНКО ◽  
Г.И. КАСЬЯНОВ ◽  
А.Д. НОВОЖЕНОВА ◽  
А.Б. БОРОВСКИЙ ◽  
Г.Х. МИРЗОЗОДА (МИРЗОЕВ)
Keyword(s):  
Heat Treatment ◽  
Systematic Approach ◽  
Raw Materials ◽  
Qualitative Composition ◽  
Resource Saving ◽  
High Quality ◽  
Pressing Method ◽  
Pumpkin Seeds ◽  
Public Catering ◽  
Object Of Study

На основе системного подхода с элементами функционально-структурного анализа рассмотрены традиционные схемы технологических линий для переработки плодов и семян тыквы с целью определения эффективности технологических операций. Выявлены недостатки при проведении гидроочистки семян тыквы от фрагментов плодов с их просеиванием через вращающийся ситовой цилиндр барабанной моечной машины и при подготовке масличного сырья к влаготепловой обработке – измельчению семян тыквы на вальцевых станках. В качестве объекта исследования были выбраны семена тыквы сортов Лазурная, Гитара, Штирийская масляная, Мускатная, Кормовая, выращенной в РФ и Таджикистане. Исследованы качественный состав СО2-экстрактов из семян тыквы, химический и аминокислотный составы СО2-шротов. Установлено, что в СО2-шроте из семян тыквы содержится, %: белка 22–25, липидов 6–13, углеводов 28–37. Представлены комплекс технологических предложений и высокоэффективная технологическая система на модульном уровне для осуществления рациональной поэтапной переработки семян тыквы с целью получения масла прессовым способом и последующим получением из жмыха СО2-экстрактов и высокобелковых СО2-шротов для обогащения блюд общественного питания. On the basis of a systematic approach with elements of functional and structural analysis, traditional schemes of technological lines for processing fruits and pumpkin seeds are considered in order to determine the effectiveness of technological operations. Disadvantages when carrying out hydro treatment of pumpkin seeds from fragments of fruits with their sifting through a rotating sieve drum washing cylinder device and in the preparation of oilseed raw materials to moisture and heat treatment – grinding pumpkin seeds for rolling machines are revealed. Seeds of pumpkin varieties Lazurnaya, Gitara, Shtiriyskaya maslyanaya, Muskatnaya, Kormovaya , grown in Russia and Tajikistan were chosen as the object of study. Qualitative composition of CO2-extracts from pumpkin seeds, chemical and amino acid compositions of CO2-meal were investigated. It was found that the CO2-meal from pumpkin seeds contains,%: protein 22–25, lipids 6–13, carbohydrates 28–37. A set of technological proposals and a highly efficient technological system at the modular level for the implementation of rational stage-by-stage processing of pumpkin seeds in order to obtain oil by pressing method and subsequent production of CO2-extracts from the cake and high-protein CO2-meals for the enrichment of public catering are presented.

Production of hydrogen by supercritical water reforming of O-containing organic components of plant raw materials

2020 ◽  
Vol 143 ◽  
pp. 105849
Author(s):  
Viktor I. Bogdan ◽  
Aleksey E. Koklin ◽  
Alexander N. Kalenchuk ◽  
Nikolay V. Maschenko ◽  
Tatiana V. Bogdan ◽  
...  
Keyword(s):  
Supercritical Water ◽  
Raw Materials ◽  
Plant Raw Materials ◽  
Organic Components ◽  
Production Of Hydrogen

scholarly journals Ecological and economic aspects of vinyl chloride production based on the use of raw materials of coking plant

2018 ◽  
Vol 61 (11) ◽  
pp. 914-919 ◽  
Author(s):  
I. A. Kudryashova ◽  
E. A. Kharlampenkov ◽  
N. V. Zakharova
Keyword(s):  
Vinyl Chloride ◽  
Value Chain ◽  
Raw Materials ◽  
Gas Analysis ◽  
Raw Material ◽  
Added Value ◽  
Low Grade ◽  
Economic Aspects ◽  
Use Of Resources ◽  
Production Of Hydrogen

Ecological and economic aspects of vinyl chloride production are considered as the main resource for production of polyvinyl chloride using by-products of coking enterprise, including low-grade coke, as well as coke gas. Implementation of this project is possible based on carbon technologies and technology of conversion of methane contained in coke gas into acetylene using hydrogen-arc pyrolysis. It is proposed to include cryogenic separation of coke gas into methane and hydrogen, needed for implementation of this technology and production of hydrogen chloride as a component for production of vinyl chloride in process of raw material preparation. Rational use of resources of two Kemerovo enterprises - “Cock” PJSC and “Khimprom” PJSC for this product manufacturing allows optimization of added value chain. Currently, “Coke” PJSC has inoperative volumes of coke gas, which can be used as a raw material for vinyl chloride production. Carbon technology of PVC production, as international practice has shown, is economically advantageous if cost of coal raw materials and waste coke production is 40% lower than cost of oil or natural gas. Analysis of economic expenditures and cost of vinyl chloride production based on added value chains have identified the most “narrow” elements of technological process, requiring innovative solutions to reduce costs and environmental impact of production.

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