Research in the field of evaluation of anfo explosive preparation installations, Tests and results

The technical-economic efficiency of rock extraction works depends significantly on the drilling and blasting works as well as the adjacent costs. The cost of the explosive is an important component in these and the generalization of the widespread use of the use of bulk explosives (ANFO) has generated a significant reduction in the cost. Making the explosive close to the place of use in fixed or semi-stationary installations on the quarry stage eliminates the costs related to storage or long-term storage, transport, escort, security. However, installations for the manufacture of ANFO type explosives must consistently produce a simple quality explosive mixture. The quality lies in the participation of the precursors as well as in the degree of homogenization, stability and a good behavior to external stimuli that can lead to sensibility to initiation stimuli or inhibition of sensitivity where the harmful influence of moisture in the raw material or environment must be emphasized. The paper presents tests and results obtained in recent years for such installations used by several companies in Romania performed under the supervision of INSEMEX specialists. These assessments were completed with the certification of explosives manufacturing facilities for the specified operating parameters as well as for explosives.

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The Study of Soybean Chaff Pressing Process Depending on Its Fractional Composition and Humidity

Bulletin of Science and Practice ◽

10.33619/2414-2948/42/21 ◽

2019 ◽

Vol 5 (5) ◽

pp. 160-164 ◽

Cited By ~ 1

Author(s):

V. Shishkin ◽

E. Shulzhenko

Keyword(s):

Fractional Composition ◽

Complex Mixture ◽

Cost Effective ◽

Laboratory Unit ◽

Long Term Storage ◽

The Cost ◽

Far Eastern ◽

And Storage ◽

Term Storage

A by-product of soybean production, as a non-grain part of the crop, can be used to meet the needs of livestock in providing complete feeding of livestock. Pressing the floor allows to reduce the volume of plant material in order to reduce the cost of storage and transportation, improve the safety of its nutrients during long-term storage. Therefore, the development of an efficient, cost-effective and less energy-intensive technology and a process line for compacting the soybean floor by pressing is a promising direction. The pile of the floor is a complex mixture of particles of different sizes, as well as voids filled with air. Equipment compaction chaff should provide a stable preparation of pellets under all the fluctuations of the moisture content and fractional composition of chaff. In 2018, research experiments were carried out in the Far Eastern Scientific–Research Institute of Mechanization and Electrification of Agriculture to study the process of pressing the soybean floor, depending on its fractional composition and humidity, on the manufactured laboratory unit for compaction with the production of soybean floor briquettes. It was found that when the humidity of the sample increases from 9 to 21%, the energy consumption decreases by 17.1%. The coefficient of compaction of the floor when the humidity changes almost does not change. By increasing the length of the sex particles from 14 to 87 mm, the compaction coefficient increases by 73.3% and the energy intensity by 6.2 %. For transportation and storage of the soybean floor briquette, it is recommended to pack it tightly with polyethylene film or tie it with twine, this will increase the shelf life and eliminate losses.

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Investigation of the chemical composition of pumpkin pulp as a basis for soft drinks

Vestnik MGTU ◽

10.21443/1560-9278-2021-24-4-441-449 ◽

2021 ◽

Vol 24 (4) ◽

pp. 441-449

Author(s):

M. N. Shkolnikova ◽

V. N. Abbazova

Keyword(s):

Sugar Content ◽

Meat Products ◽

Climatic Conditions ◽

Raw Material ◽

Long Term Storage ◽

Technological Potential ◽

Wide Range ◽

Snack Products ◽

Term Storage

Pumpkin fruits ( Cucurbita spp.) have a number of advantages and high technological potential, thanks to almost universal cultivation in a wide range of agro-climatic conditions, the ability to long-term storage, the content of dietary fibers, pectin and other polysaccharides, carotenoids, polyphenolic substances, vitamins, which cause a wide range of physiological orientation. In the process of researching the composition of local cultivars of pumpkin and the world experience of using Cucurbita spp. in the composition of food products, the need to use this ingredient in beverage recipes has been substantiated. The content of dry substances in the pumpkin samples is from 8.18 % ("Gribovskaya") to 11.6 % ("Orange bush"). The maximum sugar content is distinguished by the varieties "Winter Sweet" (6.87 %) and "Orange Bush" (7.40 %). The content of BAS-antioxidants is (without visible difference depending on the growing region): carotenoids from 1.3 mg/100 g in "Gribovskaya" to 2.0 mg/100 g - "Orange bush"; ascorbic acid - 8.7 mg/100 g in "Rossiyanka" to 14.2 mg/100 g - "Orange bush". Today all parts of the pumpkin fruit are used: the bark is a raw material for the production of feed flour and a substrate for the cultivation of lactobacilli, the seeds are traditionally used to produce pumpkin oil and flour, the pulp of the fruit is a raw material for juice-containing products, purees, carotenoid-containing and polysaccharide extracts, pectin, concentrates of first and second dishes, snack products, pasta, bakery, confectionery and meat products, etc.

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Changes in the content of organic acids and inorganic anions in sugar beet during long-term storage

Sugar Industry ◽

10.36961/si17974 ◽

2016 ◽

pp. 760-764 ◽

Cited By ~ 1

Author(s):

Maciej Wojtczak ◽

Aneta Antczak-Chrobot ◽

Paulina Miko ◽

Magdalena Molska ◽

Ilona Baszczyk ◽

...

Keyword(s):

Sugar Beet ◽

Storage Conditions ◽

Denitrifying Bacteria ◽

Raw Material ◽

Storage Duration ◽

Long Term Storage ◽

Term Storage ◽

Acetic Acids

Due to the prolongation of the period of the sugar campaign, it is necessary to optimize the storage conditions, so that changes in the quality of the raw material could be minimized. The aim of this study was to determine the effect of storage duration and temperature on changes in the composition of sugar beet. The study presents the changes in the content of glucose, fructose, raffinose, lactic and acetic acids, nitrates and nitrites as well as in the content of the total number of mesophilic bacteria, denitrifying bacteria and spores of denitrifying bacteria during storage under various conditions.

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Determining the pectinesterase enzyme activity when storing table grape varieties depending on the degree of ripening

Eastern-European Journal of Enterprise Technologies ◽

10.15587/1729-4061.2021.247963 ◽

2021 ◽

Vol 6 (11 (114)) ◽

pp. 43-51

Author(s):

İlhama Kazimova ◽

Ahad Nabiyev ◽

Elza Omarova

Keyword(s):

Enzyme Activity ◽

Statistical Processing ◽

Table Grape ◽

Raw Material ◽

Table Grapes ◽

Long Term Storage ◽

Red Grape ◽

Grape Varieties ◽

Term Storage

Grapes are rich in easily digestible carbohydrates, mineral compounds, vitamins, phenolic compounds. and other vital components. It is known that fresh grapes can be used from September to December. To prolong the terms of consumption of this valuable raw material, the most appropriate varieties and conditions for storing grapes have been determined. White, pink, and red grape varieties were taken as the object of research. The changes in the activity of the pectinesterase enzyme were determined depending on the degree of ripening of table grape varieties, the change in the pectinesterase enzyme during storage of table grape varieties in various variants was investigated. Statistical processing and calculation of variations in the indicators of changes in the activity of the enzyme pectinesterase were performed, depending on the degree of ripening of grapes of the Shamakhi Marandi variety. During the study, the pectinesterase enzyme remained more stable in mature varieties. This means that in ripe table grape varieties, the absorption of nutrients in the respiratory process is significantly slowed down. However, as they mature, the activity of the pectinesterase enzyme gradually increases. Therefore, for long-term storage in refrigerated chambers, fully ripe varieties of table grapes were used; to this end, grapes of the white Ganja table variety, the pink Shamakhi Marandi variety, and the red Black Asma variety are more suitable. The comparison of the investigated variants showed that table grape varieties, when stored in a refrigerated chamber in a controlled atmosphere, at 3–4 % CO2 and 2–3 % O2, retain better quality than other variants. When storing table grape varieties of various variants in the refrigerator, the enzyme activity decreases but is not completely suppressed.

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Technological qualities of root crops and economic efficiency of growing sugar beet hybrids by the KWS company in the conditions of "Rasavske" Ltd. of Kaharlyk district, Kiev region

Agrobìologìâ ◽

10.33245/2310-9270-2018-142-2-34-39 ◽

2018 ◽

pp. 34-39

Author(s):

A. Gorodetskiy ◽

M. Grabovskiy

Keyword(s):

Sugar Beet ◽

Economic Efficiency ◽

Sugar Content ◽

Prolonged Storage ◽

Forest Steppe ◽

Juice Quality ◽

Long Term Storage ◽

Root Crops ◽

Term Storage

The paper deals with the results of research on the study of the technological traits changes in foreign hybrids root crops of the KWS company sugar beet enterprises under the influence of long-term storage and their economic efficiency. The conducted researches are especially relevant due to insufficiently studied issues of changes in the technological traits of the root crops of the newest hybrids during their storage in the crutches on the field or at the sugar factory. Estimation of new hybrids of sugar beet by regions of the Forest-steppe allows to predict the genetically determined degree of their plasticity and stability both in the yield and the quality. Hybrids with higher resistance to extreme temperatures are especially valuable. The researches were carried out during 2014–2015 at the "Rasavske" Ltd. of Kaharlyk district, Kyiv region. The sugar content in the root crops increased from 1.6% in the Alyona hybrid to 5.9 % in the Daria hybrid and 6.1 % in the Coryda hybrid, due to the loss of moisture during their prolonged storage. The content of soluble dry matter in the root crops increased from 1.7 % in the Alyona hybrid to 7.7 % in the Coryda hybrid for the same reason. The conducted calculations of cell juice quality showed that long-term storage resulted in the highest growth of this indicator by 8.2 % in the Cesaria hybrid and by 7.5 % in the Acatsia hybrid. In the Alyona hybrid, the growth rate of cell juice quality was only 0.8 %, while the Corida hybrid had the quality of the previous level. In the Olesya hybrid, this indicator decreased by 1.8 % compared with the previous determination period (October 10). The costs of growing root crops ranged from 17,859 to 20,726 UAH/ha. The highest profit was 17435 UAH/ha and the profitability level was 86.3 % for the Alyona hybrid, while the lowest economic efficiency figures were for the profit of 10,201 UAH/ha and the profitability level of 53.7 % in the Carmelite hybrid. The highest rates of the technological traits of root crops during the long-term storage of sugar beet were determined in the Alyona hybrid. The highest yield of root crops was in the Daria hybrid – 79.8 t/ha. According to the indicators of economic efficiency the Alona hybrid was the best in terms of profit (17,435 UAH/ha) and the profitability level of 86.3 %. Key words: sugar beet, hybrids, productivity, yield, sugar content, technological traits, profit, profitability level.

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Eco-innovative application of phyto-raw materials in the technology of long-term storage of unrefined sunflower oil

E3S Web of Conferences ◽

10.1051/e3sconf/202126204010 ◽

2021 ◽

Vol 262 ◽

pp. 04010

Author(s):

Roza Timakova ◽

Ruslan Iliukhin

Keyword(s):

Sunflower Oil ◽

Raw Materials ◽

Optimal Dose ◽

Acid Number ◽

Raw Material ◽

Environmental Friendliness ◽

Long Term Storage ◽

Oxidative Processes ◽

Term Storage

Along with the development of agroecosystems, environmental friendliness of agricultural and industrial technologies for long-term storage of agricultural products is being formed as a result of cognitive technologies development, including innovations in biotechnologies. Achieving the biological safety of bulk unrefined sunflower oil is based on the addition of an unconventional antioxidant phyto-raw material to it - stinging nettle, which slows down oxidative processes. In order to prevent oil contamination, the optimal dose of ionizing radiation for the nettle treatment is established - up to 1.5 kGr, which ensures microbiological safety and antioxidant activity (AOA) at the level of 0.763 + 0.016 mMeq, comparable to AOA in the untreated nettle samples after 3 months. After 52 days of storage, the acid number was in the range of 0.99-1.15 mg KOH / g, the peroxide number was 5.09-5.16 mmol active oxygen / kg. Adding 0.5-1.0 wt. % nettle powder to the oil ensures the compliance of organoleptic parameters with the established requirements - transparency, taste and smell. Adding 1.0 wt. % nettle powder to the oil slows down the filtration process of the resulting suspension. The practical relevance of the study is determined by the verification of the research results to prolong the oil shelf life by adding environmentally friendly phyto-raw materials to it.

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Betulin nanosuspension as a promising raw material for the production of long-term storage bread

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/548/8/082017 ◽

2020 ◽

Vol 548 ◽

pp. 082017

Author(s):

Natalia V Zavorokhina ◽

Natalia A Pankratieva ◽

Nadezhda A Goncharova

Keyword(s):

Raw Material ◽

Long Term Storage ◽

Term Storage

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Modelling of Moisture Movement in Wood during Outdoor Storage

Nonlinear Analysis Modelling and Control ◽

10.15388/na.2001.6.1.15210 ◽

2001 ◽

Vol 6 (2) ◽

pp. 3-14 ◽

Cited By ~ 23

Author(s):

R. Baronas ◽

F. Ivanauskas ◽

I. Juodeikienė ◽

A. Kajalavičius

Keyword(s):

Experimental Data ◽

Finite Difference ◽

Climatic Conditions ◽

Two Dimensional ◽

Moisture Movement ◽

Finite Difference Technique ◽

Long Term Storage ◽

Space Formulation ◽

Term Storage

A model of moisture movement in wood is presented in this paper in a two-dimensional-in-space formulation. The finite-difference technique has been used in order to obtain the solution of the problem. The model was applied to predict the moisture content in sawn boards from pine during long term storage under outdoor climatic conditions. The satisfactory agreement between the numerical solution and experimental data was obtained.

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