scholarly journals NEW PARTNENCLONES OF BOOMBYX MORI L. FROM THE COLLECTION OF GENETIC RESOURCES OF UKRAINE

2019 ◽  
Vol 57 ◽  
pp. 159-164
Author(s):  
N. V. Isichenko ◽  
V. M. Litvin ◽  
G. I. Babayeva ◽  
B. T. Stegniy ◽  
O. V. Dmitriyeva ◽  
...  

The purpose of the research is to investigate the ability to heat the parthenogenesis of new breeds silkworm T–1, T–2, D–1 silkworm breeds and to establish the reproductive, biological and technological parameters of the T–1clone, T–2clone and D–1clone created on their basis. Materials and methods of research. The research was conducted on the basis of the laboratory of silkworm and technical entomology of the National Scientific Center "Institute of Experimental and Clinical Veterinary Medicine" during 2016–2018. For the study of the ability of new breeds of silkworm D–1, T–1, T–2 to the thermal parthenogenesis, the females of the aforementioned silkworms were used. Activation of the gravel to ameiotic parthenogenesis (complete thermal pathogenesis) was carried out using the method B. L. Astaurov The reproductive parameters of parthenoclon were studied: the ability to parthenogenesis (%), the total number of eggs (pieces), the weight of one egg (mg), the output of caterpillars from eggs (%). The economic-valuable and technological indicators of the created clones were investigated: viability of caterpillars (%), cocoon yields of 1 g of caterpillars (kg), silkworm cocoons (%), cocoon mass (g), length of filaments (m), length of continuous- unwound thread (m), raw silk output (%). The main results obtained. It is established that the new clones of silkworm silk created by the ability to parthenogenesis are at the control level. In terms of the viability of caterpillars in 2018, they are somewhat inferior to Ukr.28, but according to the results of three years of research, this indicator is at a level, and T–2clone even exceeds control by 4.84% (p < 0,05). Similar results are obtained on the basis of the weight of the cocoon. By the cocoon yield, the new Parthenoclon exceeds control in 2018 by an average of 0.44 kg and for three years of research – by 0.50 kg. The indicator of silk worminess of cocoons in T–1clones and D–1clones was at the level of the indicator Ukr.28clones, at T–2clone – was higher than the parameters of part-clones and control at 0.83–2.73%. The length of the thread, the length of the continuously unwound yarn and the output of raw silk is dominated by T–2clone – its values exceed the similar indicators of T–1clone and D–1clone, dominated by control indicators – Ukr.28clones. Thus, the new clones of silkworm, adapted to the changed climate in Ukraine, were introduced and evaluated. They can be components for the creation of new clone-breed hybrids with high biological and technological performance. The stands of silkworm hybrids will provide domestic branches of production of organic raw materials for the production of modern products. This will allow import substitution of organic goods for everyday use to our country's inhabitants. Domestic production of organic products in the form of clothing, medical and cosmetic products will provide the work of thousands of compatriots and reduce the cost of goods in comparison with imported ones. Prospects for further scientific research are the creation of new clone-breed hybrids with high biological and technological indices for Ukraine. Conclusions. 1. Three new high-yield silkworm clones with the optimal combination of silk productivity and ability to ameiotic parthenogenesis, characterized by the following biological indices, are derived: T–1clone – caterpillar livelihood 84.13%, cocoon yield 3.76 kg, cocoon mass 2.30 g, silkiness 21.62%; T–2clone – caterpillars' survivability 88.94%, cocoon yield 4.23 kg, cocoon mass 2.53 g, silicone 24.25%; D–1clone. – The viability of the caterpillars is 85.52%, the cocoons are 4.08 kg, the cocoon mass is 2.41 g, and the silicone content is 21.62%. The estimation of reproductive indices of created T–1clone, T–2clone and D–1clone clones was made and their ability to heat parthenogenesis was determined. The highest ability to ameiotic parthenogenesis has D–1clone – 72.73%. Parthenoclones T–1clone, T–2clone and D–1clone for reproductive characteristics are at the level of the control clone Ukr.28clones and are promising for clone- breed hybridization. The technological parameters of the new clones are established: the T–2clone is the leader in the length of the filament (1432m), the length of the continuous unwound yarn (734 m) and the output of raw silk (46.3%) – its parameters exceed the similar indicators in T–1clone and D–1clone at 2.5% and prevail over control indicators – Ukr.28clones – by 5.5%.

2020 ◽  
Vol 1000 ◽  
pp. 447-453
Author(s):  
Hafid Abdullah ◽  
Sri Bimo Pratomo

The use of local raw materials for the manufacturing of import substitution casting products on investment casting technology has been done. Compared to the conventional casting process, investment casting has the advantage of being able to create a sophisticated casting product and produce a product that is near net shape, so it is no need machining process. The objective is as an effort to find an alternative method of making a quality casting product, has high added value with the utilization of local raw materials which available in Indonesia so that it can reduce the cost of production and dependence on imports of industrial raw materials which are very expensive in the investment casting process. The method of making casting products with investment casting process, including: pattern making, mould making, dewaxing, melting, pouring, finishing and testing. Investment casting technology has been successfully applied to the manufacture of rocker arm, impeller pump and turbine blade with the utilization of local raw materials ie: epoxy resin as a substitute for metal pattern, mixture wax of paraffin, and celo resin for the pattern of wax and zircon sand of Bangka island as coating slurry for ceramic mould. The discussion of this paper is expected to be a case of developing other casting products needed by Indonesia for industry such as: medical equipment, agricultural equipment, textile equipment, gun and small armaments, electronics, automotive and electrical components etc.


Author(s):  
M. Troubitsin ◽  
N. Volovicheva ◽  
L. Furda ◽  
N. Skrypnikov

Experimental studies of the influence of technological parameters of grinding alumina raw materials in a ball mill on the kinetics of the grinding process and the granulometric characteristics of activated alumina in the α-form have been carried out. It is found that the use of spherical grinding bodies leads to the formation of a specific four-modal granulometric composition with maxima: 0.5; 4.0; 50.0 and 400.0 microns, respectively. The disadvantage of using spherical grinding bodies is the uneven distribution of the introduced intensifier additive (PEG), which in turn causes adhesion of fine particles and the appearance of aggregates. This is especially pronounced at n = 100 rpm. When using grinding bodies of cylindrical shape, on the contrary, there is a tendency towards a bimodal nature of the distribution of particles with maxima in the regions of 0.4 and 4 μm, respectively, regardless of the rotation speed of the drum (n). The use of cylpebs does not provoke agglomeration of the fine particle fraction, which is observed in the case of spherical grinding bodies. When analyzing the kinetics of grinding alumina raw materials, two main stages of the process are identified. The first stage corresponds to the active fragmentation of large initial aggregates into constituent crystallites by the cleavage mechanism. The second stage corresponds to a change in the grinding mechanism from crushing to abrasion. It is found that carrying out the grinding process for 10 hours using cylindrical grinding bodies at n = 100 rpm and φ = 0.35 provides a high yield of the submicron fraction of the target product (1 μm) - up to 20 wt. %.


2014 ◽  
Vol 67 (1) ◽  
Author(s):  
Hamdzun Haron ◽  
Salwa Ayob

The amalgamation of science and art is indisputable in the production of ceramic clay bodies for the creation of an artwork. It covers all stages of the production process starting from the formulation of raw materials (clay) to the final glazed products. This research observes the transformation of the clay body formulation by using alternative silica from Toba volcanic ash. Malaysia is located outside the ring of fire, but through the archaeological findings, there are volcanic ash deposits found at several places such as in Kedah, Perak, Selangor and Pahang. From previous studies, it is proven that this volcanic ash originated from the volcanic eruption of Toba in northern Sumatra around 74,000 years ago. Among all of these findings, volcanic ash in which situated at Lenggong, Perak is considered as the most suitable for this research because it is categorized as a primary and through the laboratory studies that has been conducted, it is found that it has sufficient amount of silica to be used as alternative material in producing ceramic bodies. Silica is one of the main ingredients in a glass formation. In the production of porcelain bodies, silica has been used at a rate of 15% to 25%. The success in producing ceramic bodies using volcanic ash opens up possibilities for diversifying the products made from volcanic ash, a material which has been wasted before and this will reduce the cost of raw materials. At the same time it is considered as an innovation of ceramic product with the specialties of its own including the historical values that come through the transformation process of the body to the creation of ceramic works displayed at galleries.  


2021 ◽  
Vol 9 (16) ◽  
pp. 20-27
Author(s):  
Kulbaram Bayazitova ◽  
◽  
Sulu Zhumakhan ◽  
Aidana Abilda ◽  
Gulmaral Apsemet ◽  
...  

The subject of research. The subject of the research is the production of soft cheese from goat's milk, the features of the technology used for the said, including milk-clotting enzymes and bacterial starter cultures. The purpose of research is to analyze the quality factors and the suitability of the starter culture for the production of soft cheese from goat’s milk to ensure a high yield of finished products, to study the effect of pasteurization modes on the curdling process. Materials and methods. When conducting research on the technological parameters of the production of soft cheese, various amounts of yeast, rennet, and calcium salt were added. The goat’s milk, starter culture, enzyme and calcium chloride available on the market were used. When determining the quality parameters of milk and finished products, we used standard methods for studying sensorial characteristics, determining the content of fat, moisture and dry matter, the mass fraction of protein, density and titratable acidity. Results of research. When conducting research, the duration of cheese mass formation was 8-14 hours. As the amount of added additional raw materials increased in each cheese sample, a decrease in the duration of the formation of the curd mass and the formation of a clot of different consistency were observed. The article also presents the results of studies of sensorial, physical and chemical parameters of samples of the finished soft cheese, describes the technological processes of the production of soft cheese from goat’s milk and the results of studies of factors affecting the quality of products. In particular, the technological parameters of obtaining soft cheese from goat’s milk, the procedure for pasteurization of the milk were studied, the optimal amounts of bacterial yeast, rennet and calcium chloride necessary for the production of cheese mass were determined, the effective concentration values of the enzyme and yeast that improve the physical colloidal properties of the protein clot were determined, these reducing the yield of dry matter during processing, increasing the output of finished cheese, the data on their impact on product quality is also provided. The benefits of the soft cheese made from goat's milk are due to the efficient use of raw materials, proper nutritional value and high yield of finished products. Sensorial, physical and chemical characteristics of ready soft cheeses have been studied. According to the results of the study, a sample of soft cheese from goat's milk was selected that fully meets the regulatory documents, without cheese defects in terms of physical and chemical parameters, fat content, moisture content, salt content, as well as sensorial properties. Scope of research results. The results of the research will be used to improve the technology for the production of milk products, namely, soft cheese from goat’s milk, to improve the food safety and consumer properties of the specified product.


2018 ◽  
Vol 4 ◽  
pp. 42-49
Author(s):  
Alexandra Niemirich ◽  
Oksana Vasheka ◽  
Oksana Petrusha ◽  
Nikolay Pogozhikh

One of the resource-saving methods of drying, from the point of view of preserving food and biological value, providing the appropriate recovery properties of dried food products (DFP) and energy intensity of the process, is drying with mixed heat supply (MHS drying). The scientific concept of work on the formation of a universal and DFP stable functional and technological potential is formulated, which is the basis for modeling and designing the formulation composition and technology of food products by groups and types with its use or interchangeability. As the subject of research for the formation of quality indicators of cereals, white cabbage is selected, as it is a typical vegetable for Ukraine and accordingly has a high degree of assimilation of natural micronutrients in the human body. Structural studies have shown the predominantly crystalline structure of polysaccharides, that is, less than their transformation under conditions of MHS drying, as compared with convective conditions. The effect of MHS drying on the formation of DFP quality indicators is determined by the method of recording IR spectra with Fourier transform. For studies of the violation of total internal reflection, it has been established that the process of DFP reduction leads to an increase in the availability of organic substances in the solvent, which will facilitate the extraction of extractives in the recovery of raw materials. It is established by the number of aroma, the more aromatic-forming substances are contained in the MHS drying samples irrespective of the process temperature, less in the dried samples of the convective method. This is due to the reduction of thermal and thermal effects during MHS drying, which slows down chemical transformations and removes aromatic substances. It is proved by the tensometric method, with the convective method due to shrinkage during dehydration, the changes during sorption and desorption are insignificant. When MHS drying, such changes are expressed: during the sorption of vapors, DFP is well restored, the capillaries swell, so the differential distribution function of the pores expands, the average radius of the capillaries increases 4 ... 6 times. The research results make it possible to form the functional and technological parameters of cabbage powder, to simulate the formulation of new food products with this ingredient and to optimize the production technology.


2021 ◽  
pp. 48-57
Author(s):  
О. І. Бурбан ◽  
Л. І. Вишневська ◽  
Т. М. Зубченко

One of the areas of rational use of raw materials, increasing the efficiency of medicinal plant raw materials and reducing the cost of medicines is the technology of its complex processing, which allows to obtain several pharmacologically active substances from one plant, also through the use of plant waste. Information about the potent biological activity of Sedum maximum and its insufficient study prompted us to conduct experimental studies to obtain substances based on it. The aim of the work is to study the production of an extract from marc of Sedum maximum grass on the basis of its complex processing and to study its quality indicators. Materials and methods of the research – biblio semantic, pharmacotherapeutic, physicochemical and statistical research methods were used during the research. Taking into account a number of technological factors, the parameters of obtaining extract from marc of Sedum maximum grass were determined, the quality of juice and Sedum maximum grass extract was studied: description, pH, dry residue, identification, quantitative content of tannins in terms of pyrogalol. Taking into acount the physicochemical and pharmacotechnological properties of the ingredients, technological schemes for obtaining fresh juice from Sedum maximum grass and extract from its marc have been developed and control parameters of the process of their production have been established. Taking into account a number of technological factors, the parameters of obtaining the extract from marc of Sedum maximum grass were determined: raw material:extractant ratio – 1:2, extraction temperature – 96–98 °С, extraction duration – 15 min. As a stabilizer used sodium chloride in the amount of 0.7%. The study of the following quality indicators of juice and extract of Sedum maximum grass were done and following results obtained: description, pH – 5.72 ± 0.08 and 4.87 ± 0.04, respectively, dry residue – 2.73 ± 0.07 and 2.54 ± 0,10%, respectively, identification, quantification of the amount of tannins in terms of pyrogalol – 0.094 ± 0.002 and 0.095 ± 0.002%, respectively. The technology was developed and technological schemes of complex processing of Sedum maximum grass were drawn up, according to which juice and aqueous extract from marc were obtained after squeezing the juice.


Author(s):  
I. N. Shumkova ◽  
T. S. Linkova ◽  
D. N. Zemskii ◽  
O. V. Khabibrakhmanov

Formaldehyde is widely used in many fields of industry. The increase in the need for formaldehyde led to an increase in scientific research, the purpose of which is to obtain the greatest yield of the product (formaldehyde) with minimal costs for raw materials, catalyst and its regeneration, energy carriers, etc. At industrial plants for the production of formaldehyde by oxidative dehydrogenation of methanol on the silver on pumice catalyst, the process temperature is maintained at 600 ° C. The process of obtaining formaldehyde by oxidation of methanol with air oxygen at the combination of catalysts "silver" and "silver on pumice" in the temperature range of 250–450 °C is investigated. The results showed the possibility of practical application of the combined catalyst. Chemical and technological parameters of the process with the use of a new catalyst are slightly lower than production indicators, however, the temperature of the pilot process is 2 times lower - this will reduce not only the energy costs, but also increase the life of the catalyst and the cost of its regeneration.


2018 ◽  
Vol 1 (1) ◽  
pp. 24-30
Author(s):  
Debby Malinda ◽  
Tita Talitha ◽  
Jazuli Jazuli

Planning and controlling the needs of both raw materials and finished products is a significant thing for companies to optimize their production. This also applies to CV. Mitra Setia Usaha that  engaged in the textile industry with raw materials batik cloth. During this time, CV. Mitra Setia Usaha has not applied standard methods in the planning and control of raw material needs. Determination of the amount of raw materials so far only based on the number of consumer orders. In the last 2 (two years) (October 2014 to September 2016), the company received a request of 5.050,000 meters, but the existing supply of cotton fabric was only 4,920,500 meters. One of the methods that can be applied in the CV. Loyal Business Partners is the Material Requirement Planning (MRP). By applying this MRP-Lot for for lot (LFL) method, CV. Mitra Setia Usaha able to reduce the cost incurred in the procurement of raw materials for one year which initially amounted to 104.328.000 rupiah to 93.817.673 rupiah and can even be reduced again to 83.306.995 rupiah using the method of Order Quantity Period (POQ)


2011 ◽  
pp. 230-259
Author(s):  
Ashutosh Deshmukh

The conversion cycle spans a range of activities — product design, production planning and control, and cost accounting. Product design is a collaborative activity and can involve a number of specialists from different functional areas. Production planning and control involves planning production by optimizing factors such as customer demand, availability of materials and labor, capacity constraints, distribution constraints and storage constraints, to mention a few. Planned manufacturing activities are carried out by processing raw materials though a combination of machines and humans and creating a finished product. The cost accounting system provides data useful for evaluating production function, determining product costs and generating information for inventory valuation for external reporting purposes.


Author(s):  
S.V. Leleka ◽  
A.Ya. Karvatskii ◽  
I.O. Mikulionok ◽  
V.M. Vytvytskyi ◽  
O.M. Glukhov ◽  
...  

An analysis is made of the traditional energy-intensive process of calcining carbon-containing raw materials, in particular petroleum coke, in rotary kilns, which assumes continuous burning of natural gas in these furnaces. A new method for producing calcined petroleum coke is proposed, which minimizes the cost of natural gas as fuel, and therefore reduces the energy intensity of the calcination process and the cost of the obtained calcined coke. In the proposed method, at the beginning of the process, flue gases are obtained by burning natural gas in a rotary kiln, after the calcined coke reaches the required temperature, the consumption of natural gas is reduced or stopped altogether, and the required temperature of the calcined coke is maintained by the corresponding ratio of the flow rate of ambient air and synthetic gas obtained by cooling the material in a rotary kiln or in a cooler drum. To implement the method, a scheme of air supply to the calcination zone of a rotary kiln with the installation of air blowers directly on the casing of a rotary kiln is justified. The fundamental possibility of implementing the proposed method on a rotary kiln diameter 2x40 m with a capacity of 10 t/h for the finished product is shown. In particular, the calculation of its main structural and technological parameters has been performed. Compared with the known method, the proposed technical solution allows to reduce the energy intensity and, accordingly, the cost of the obtained calcined coke. Bibl. 14, Fig. 7.


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