scholarly journals Overview of methods of wheat grain conservation in early stages of ripeness

2021 ◽  
Vol 937 (2) ◽  
pp. 022113
Author(s):  
D Rudoy ◽  
V Pahomow ◽  
T Malceva ◽  
D Sarkisian ◽  
S Saakian

Abstract The problem of reducing losses and using grain remains one of the most pressing problems of national importance. To prevent the occurrence of unacceptable quantitative and qualitative losses of grain, a timely and correctly carried out post-harvest processing plays an important role. This article discusses the methods of conservation of wheat by various methods at the early stages of ripeness: grain preservation by drying method, convective method, conductive method, thermoradiation method, grain preservation by silage method and freeze preservation, reveals their advantages and conducts an analytical analysis. Harvesting cereal crops in the phase of milky-wax and waxy ripeness allows you to get a crop with an increased content of nutrients in comparison with full ripeness wheat grain. The article describes the biochemical processes occurring in the grain during its ripening. Harvesting grain in the phase of milky and waxy ripeness makes it possible to prepare raw materials for production with a higher content of protein, fats and nutrients, which is the relevance of the study.

Author(s):  
Gilbert Zechia Mofor ◽  
Nadine Yemelong Temgoua ◽  
Ndamsa Dickson Thomas

The use of durable forest resources in urban areas has raised the question of link between conservation and usage patterns. Population growth in Cameroon urban areas has continued to trigger constant demand for forest resources notably for rattan resources. Owing to the thriving domestic use and trade indicators, it is observed that, the furniture processors have been experiencing considerable demand of rattan products. It was pathetic to observe that, though the whole chain of rattan dependable activities have become an integral part of livelihood strategy for many urban communities, it is without any regulatory rearmament. Such scenario has until recently been ostensibly clear that in Bamenda town is an epitome for non-awareness of the exact species used, ecological attitudes, post-harvest losses, innovative technologies and trade letdown. In the context of such lack of awareness, most socioeconomic and conservation benchmarks have remained trapped in inappropriate operations. It is in this light that, Bamenda town displays a range of concerns about the rattan resources management stakes and challenges. Thus, the main objective of this paper attempts to harness suitable socioeconomic and ecological strategies to ensure sustainability with significant potential for the rattan sources to the thriving investors’ livelihood. The study therefore, explores the stakeholders’ treasure on rattan resources derivatives and perceptions on conservation and socioeconomic standing in Bamenda town, which is a heavily dealing place. The study made use of primary and secondary sources to collect necessary data. The results indicate that, they are a chain of rattan resource investors, multiples sources of raw materials and local rattan workspaces. In addition, the paper established that, there are no conservation awareness and visions, no innovative technologies, insufficient basic knowledge about self-regulatory mechanism for informal trade on a sound rattan management as well as no veritable institutional support structures to strengthen the rattan sector. Therefore, imperiling this activity into a blur future given the gaps observed in the sector. Based on these challenges, the study has proposed pertinent concerns, which have some supportive regimented policies to awareness, sustainable conservation, production and trading trends management for livelihood of the rattan dealers in Bamenda town and beyond.


2018 ◽  
pp. 434-437
Author(s):  
Mohamed Eisa Ismail Dahab

The article by Mohamed Eisa Ismail Dahab, Ambassador Extraordinary and Plenipotentiary of the Republic of the Sudan to Ukraine, is dedicated to the relations between the Sudan and Ukraine. A positive momentum in the bilateral relations of the two countries has been evidenced by the establishment of the Embassy of the Sudan in Ukraine. Since then, both parties have sought to deepen and strengthen cooperation in various fields of mutual interest. The establishment of the Embassy of the Sudan in Kyiv at the ambassadorial level was a crescendo of friendly relations and a display of mutual will and sincere desire to strengthen relations further for the sake of the two nations. The Sudan also provides support to Ukraine on the international arena. Two states defend similar positions in the UN. Ukraine and the Sudan intend to accelerate the speed of bilateral relations and contribute to joint political and economic arrangements, share draft agreements and memoranda of understanding to conclude various contracts on trade and investment, agriculture, education and science, technologies, and other spheres of collaboration for the prosperity and welfare of the two nations. The author puts an emphasis on the importance of economic cooperation. The Sudan imports from Ukraine and spends many billions for various goods and raw materials. Ukraine is a partner in supplying wheat grain and flour, oil and seeds of oil plants, and various commodity goods. The Ambassador of the Sudan expresses his gratitude for strong determination of Ukrainian government to contribute to further development and strengthening of relations between Ukraine and the Sudan in different domains. He hopes the states will do their best for permanent cooperation, coordination and friendship. Keywords: trade, investment, the Sudan, Ukraine, economic arrangements, agriculture, bilateral relations.


Author(s):  
Е.Е. УЛЬЯНЧЕНКО

При производстве табачного сырья важную роль играет сокращение продолжительности сушки табачных листьев. Одним из способов интенсификации сушки свежеубранных табачных листьев является прием прорезания средней жилки (ПСЖ) листьев вдоль волокон. По результатам исследований 2019–2020 гг. была создана база данных табачного сырья, полученного при естественном способе сушки с применением приема ПСЖ, которая может служить информационным материалом для производителей табака. Проведена оптимизация процесса сушки табачного листа ПСЖ по показателям качества табачного сырья для расширенного диапазона сортотипов табака. Объектом исследований были сорта отечественной селекции, включенные в Государственный реестр селекционных достижений, допущенные к использованию: Самсун 85, Вирджиния 202, Юбилейный новый 142, Трапезонд 92, Трапезонд 204, Дюбек 33, Американ 287 и Крупнолистный Ильский (находится в стадии государственных испытаний). Критерием оценки эффективности применения приема ПСЖ на исследованных сортах табака являлся совокупный сравнительный анализ следующих показателей контрольных (без ПСЖ листа) и опытных образцов: уровень интенсификации сушки, показатели товарного качества, технологических свойств и химического состава полученного сырья. Установлено, что ПСЖ позволяет интенсифицировать процесс сушки в 1,3–2,46 раза в зависимости от сорта табака и положительно влияет на технологические свойства сырья, у большинства сортов увеличивается выход волокна и сохраняются объемно-упругие свойства. Динамика сушки оказывает влияние на изменение химического состава сырья. В процессе сушки за счет гидролизации солей никотина и его освобождения путем окисления кислородом воздуха уровень никотина в ряде образцов снижается в пределах 10–30%. Чем выше содержание никотина, тем выше крепость табака, грубее его вкус. Изменения углеводно-белкового соотношения в сторону повышения углеводов улучшают вкусовые характеристики сырья. По каждому исследованному сорту не удалось выявить закономерной зависимости его структуры и характера процесса сушки при ПСЖ с преобразованиями химического состава сырья. На основе анализа технологических и качественных показателей табачного сырья, представленных в разработанной базе данных по интенсификации сушки различных сортов табака с применением приема ПСЖ табачных листьев, можно планировать выбор оптимального способа сушки для каждого сорта табака, позволяющего повысить эффективность использования сырья и улучшить его качественные характеристики. In the production of tobacco raw materials, reducing the drying time of tobacco leaves plays an important role. One of the ways to intensify the drying of freshly harvested tobacco leaves is the method of cutting the middle vein (CMV) of the leaves along the fibers. Based on the results of research in 2019–2020, a database of tobacco raw materials obtained by a natural drying method using CMV reception was created, which can serve as information material for tobacco producers. The optimization of the process of drying the CMV tobacco leaf according to the quality indicators of tobacco raw materials for an expanded range of tobacco variety types was carried out. The object of research was the varieties of domestic selection included in the State Register of Breeding Achievements, approved for use: Samsun 85, Virginia 202, Yubileyny novy 142, Trapezond 92, Trapezond 204, Dubek 33, American 287 and Krupnolistnyy Ilskiy (under state testing). The criterion for evaluating the effectiveness of the use of CMV intake on the studied tobacco varieties was a cumulative comparative analysis of the following indicators of control (without CMV sheet) and experimental samples: the level of drying intensification, indicators of commercial quality, technological properties and chemical composition of the obtained raw materials. It is established that CMV allows to intensify the drying process by 1,3–2,46 times, depending on the tobacco variety and has a positive effect on the technological properties of raw materials, most varieties increase the yield of fiber and retain volume-elastic properties. The dynamics of drying affects the change in the chemical composition of raw materials. During the drying process, due to the hydrolysis of nicotine salts and its release by oxidation with air oxygen, the nicotine level in a number of samples decreases within 10–30%. The higher the nicotine content, the higher the strength of tobacco, it is coarser in taste. Changes in the carbohydrate-protein ratio in the direction of increasing carbohydrates improve the taste characteristics of raw materials. For each studied variety, it was not possible to identify a regular dependence of its structure and the nature of the drying process at CMV with transformations of the chemical composition of raw materials. Based on the analysis of technological and qualitative indicators of tobacco raw materials presented in the developed database on the intensification of drying of various varieties of tobacco using the use of CMV of tobacco leaves, it is possible to plan the choice of the optimal drying method for each variety of tobacco, which allows to increase the efficiency of using raw materials and improve its quality characteristics.


2012 ◽  
Vol 49 (No. 4) ◽  
pp. 157-160 ◽  
Author(s):  
M. Božiková

This article deals with thermophysical properties of nutritive raw materials particularly of corn and wheat granary mass. It is necessary to know thermophysical performance of granary mass for protection of quality of technological process by processing to final products. Granary mass consist of grains complex of specific kind. It is non uniform material in microscopic and macroscopic structure. There are enacted biophysical and physiological processes. Heat transfer can not be isolated by solid transfer and heat &ndash; moisture transfer. It means that specification of granary mass and granary fragments is difficult to determine. We researched thermal properties of fragments of corn and wheat grain, concretely corn and wheat flour. In the first series of measurements we measured relations of thermal conductivity&nbsp; to the moisture content&nbsp; in range (2&divide;18) % for two different samples &ndash; corn flour and wheat flour. Function f ( to bulk density <sub>S</sub>, samples had identical moisture content 6.5%. For size of corn and wheat grains in range (0.063&divide;0.5) mm this is polynomical function. Measured results are corresponding with results at present literature (Ginzburg et al. 1985).


2013 ◽  
Vol 58 (No. 8) ◽  
pp. 405-411 ◽  
Author(s):  
JM Milani

Spoilage fungi are ubiquitous contaminants of cereals, pre- and post-harvest. These fungi can produce a wide range of secondary metabolites under ecological conditions which are conducive for growth. However, some of these secondary metabolites are toxic and have a significant impact if they enter the production and animal food chains. Prevention of mycotoxin contamination of feed and food raw materials is now considered more important than subsequent cure. The key ecological determinants pre- and post-harvest are water availability and temperature (climate). Accurate information is therefore needed on the impact of an association between these key factors, and it is necessary to understand which are marginal and which critical for germination and toxin production. There have only been a few studies where attempts have been made to integrate the available information on these factors in relation to different raw materials for feed and food processing, especially cereals. This review will examine the available information on the main climatic factors, i.e., water availability and temperature affecting mycotoxin production such as, aflatoxins, ochratoxins, fumonisins, zearalenone, deoxynivalenol and citrinin. This information is crucial for accurately focusing and monitoring key critical control points in the feed and food chain to optimise prevention strategies. &nbsp;


2015 ◽  
Vol 29 (3) ◽  
pp. 405-411 ◽  
Author(s):  
Whitney D. Crow ◽  
Lawrence E. Steckel ◽  
Robert M. Hayes ◽  
Thomas C. Mueller

Recent increases in the prevalence of glyphosate-resistant (GR) Palmer amaranth mandate that new control strategies be developed to optimize weed control and crop performance. A field study was conducted in 2012 and 2013 in Jackson, TN, and in 2013 in Knoxville, TN, to evaluate POST weed management programs applied after harvest (POST-harvest) for prevention of seed production from GR Palmer amaranth and to evaluate herbicide carryover to winter wheat. Treatments were applied POST-harvest to corn stubble, with three applications followed by a PRE herbicide applied at wheat planting. Paraquat alone or mixed withS-metolachlor controlled 91% of existing Palmer amaranth 14 d after treatment but did not control regrowth. Paraquat tank-mixed with a residual herbicide of metribuzin, pyroxasulfone, saflufenacil, flumioxazin, pyroxasulfone plus flumioxazin, or pyroxasulfone plus fluthiacet improved control of regrowth or new emergence compared with paraquat alone. All residual herbicide treatments provided similar GR Palmer amaranth control. Through implementation of POST-harvest herbicide applications, the addition of 1,200 seed m−2or approximately 12 million seed ha−1to the soil seedbank was prevented. Overall, the addition of a residual herbicide provided only 4 to 7% more GR Palmer amaranth control than paraquat alone. Wheat injury was evident (< 10%) in 2012 from the PRE applications, but not in 2013. Wheat grain yield was not adversely affected by any herbicide application.


2012 ◽  
Vol 245 ◽  
pp. 209-214
Author(s):  
Emilia Campean ◽  
Liviu Morar ◽  
Dumitru Pop ◽  
Stefan Pap

The main purpose of the paper is to develop a neural network application destined to the raw material stock management, as an performant alternative to the classical models of costs stock management. Stocks of goods that manufacturers would classify as raw materials stocks are, in a special sense, goods in early stages of the production process. The testing was made for three companies from the automotive industry, but it could be applied to any kind of Romanian organization.


2004 ◽  
Vol 31 (3) ◽  
pp. 249 ◽  
Author(s):  
Greg Mutze ◽  
Ron Sinclair

Replicated field trials were conducted to compare the efficacy of zinc phosphide, strychnine and chlorpyrifos for the control of house mice (Mus domesticus) infesting recently sown wheat crops in South Australia. Bait was prepared using whole-wheat grain or grain-based pellets and broadcast into the crops at 1 kg ha–1. Treatment with zinc phosphide reduced mouse numbers by 98%. Two treatments with strychnine baits, applied 11 days apart, also reduced mouse numbers by 98% with no evidence of bait aversion in mice that survived the initial treatment. On the basis of these and other published results, zinc phosphide is considered an effective alternative to strychnine for control of house mice in cereal crops. Chlorpyrifos baits reduced mouse numbers by less than 10%. The trial began too late in the growing season to prevent substantial mouse damage to seed grain and seedlings. The number of seedlings established at treatment time one month after sowing explained 84% of variation in crop yield. Mouse damage is estimated to have reduced yield by more than 0.5 t ha–1 or 15% of potential yield and cost the grower more than $30 000 in lost production from the 300-ha study area.


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