scholarly journals Improving the quality parameters of a fibrous pulp in the process of knife milling

2021 ◽  
Vol 2094 (4) ◽  
pp. 042063
Author(s):  
D E Zyryanov ◽  
N S Reshetova ◽  
R A Marchenko

Abstract Pulp and paper products in the modern world are used in a variety of types and areas, due to which the issue of improving paper production technologies is relevant. The article presents the results of grinding fibrous semi-finished products using the knife method. A disc mill with an original knife set was used as the unit under study. For the most effective modes of grinding were selected to obtain raw materials with high quality indicators.

2020 ◽  
Vol 8 (02) ◽  
pp. 293-299
Author(s):  
Otoide J. E.* ◽  
Ihinmikaiye, S. O. ◽  
Otoide, T. F.

The possibility of creating wealth in pulp and paper industry from the underutilized dry matters of the leaf sheaths of the pseudostem (Musa paradisiaca and M. sapientum), leaf stalk (Carica papaya) and stems (Panicum maximum and Andropogon tectorum) have been established from the anatomical parameters and indexes (fibre lengths and diameters, lumen width, cell wall thickness, Runkels ratio, flexibility coefficient (%) and slenderness ratio) of the fibres using standard procedures. Results obtained revealed that the Runkels ratio of the fibres in the five dry matters were 0.60, 0.44, 0.40, 0.87 and 0.93 for Musa sapientum, M. paradisiaca, Carica papaya, Panicum maximum and Andropogon tectorum respectively. These values, each been less than 1 (˂ 1) recommends each of the dry matters as suitable alternative source of raw materials for pulp and paper production industry. It was recommended that these dry plant materials be henceforth harnessed as alternative sources of raw materials for pulp and paper production industry as another means of wealth creation instead of allowing them to waste and cause environmental nuisance.


Cellulose ◽  
2019 ◽  
Author(s):  
María Eugenia Eugenio ◽  
David Ibarra ◽  
Raquel Martín-Sampedro ◽  
Eduardo Espinosa ◽  
Isabel Bascón ◽  
...  

2020 ◽  
Vol 24 (137) ◽  
pp. 88-97
Author(s):  
F.Kh. Khakimova ◽  
◽  
K.A. Sinyaev ◽  
R.R. Khakimov ◽  
O.A. Noskova ◽  
...  

Author(s):  
А.Л. МАЙТАКОВ ◽  
А.М. ПОПОВ

Представлены результаты исследований, на основе которых разработаны критерии и проведена идентификация элементов систем среды, производимых пищевых продуктов и технологических блоков. Разработана новая концепция технологической подготовки процессов формирования функциональных физико-химических и физико-механических свойств полидисперсного продукта. Обоснована методология реализации и оптимизации технологического блока с идентификацией элементов операционной среды и объектов изображений, технологического воздействия. Установлена взаимосвязь качественных показателей функциональных элементов, среды эксплуатации и технологических воздействий; показаны алгоритм и рабочие программы информационной модели технологического блока и методология ее синтеза. Presents the results of studies on the basis of which criteria were developed and identification of elements of environmental systems, manufactured food products and technological blocks was carried out; a new concept of technological preparation of the processes of formation of functional physics-chemical and physical-mechanical properties of a polydispersity product was developed. The methodology of realization and optimization of the technological block with identification of elements of the environment of operation and objects of images, technological influence is proved. The interrelation of high-quality indicators of functional elements, operational environment and technological influences is established, an algorithm and working programs of model of information technologies and methodology of her synthesis are shown.


2020 ◽  
Vol 1 (2) ◽  
pp. 1-9

The pulp and paper industry is advanced rapidly since there are many types of raw materials containing cellulose fibres that could be used to produce different kinds of paper by different methods in the mills. In Malaysia, one of the abundant non-wood materials for pulp and paper production is empty fruit bunch (EFB) from the oil palm. The EFB is the main fibrous residue and natural fibre which has promising potential as an alternative to replace woody materials. This study provides insight into the use of EFB as an alternative non-wood fibre resource in pulp and paper making. The potential of oil palm EFB transformed into valuable fibre material was elaborated. In this review, detailed information on the properties of EFB for pulp and paper making process to identify the chemical composition and fibre morphology were discussed. Recent advanced applications including nanocellulose from EFB, polymeric hydrogel, and antimicrobial papers were discussed to demonstrate high commercialization for pulp and paper technology. The three-dimensional (3D) printing technique has been employed due to the high complexity of paper products. The future trends and challenges regarding the use of EFB in pulp and paper making were also reviewed. This study demonstrated that the EFB has met the demand of the market chains as a potential raw material in paper making and manufacturing.


Author(s):  
A. G. Galstyan ◽  
L. M. Aksyonova ◽  
A. B. Lisitsyn ◽  
L. A. Oganesyants ◽  
A. N. Petrov

In the modern world, the problem of providing the population with high-quality food products is reaching a critical point due to the increase in the population of the planet, mediated by an influence on the growth of food consumption; globalization processes, thereby contributing to fundamental changes in the structure and patterns of nutrition i.e., insufficiently effective principles of agricultural raw materials processing, etc. Today, food independence is a strategic component of a country's security, which is enshrined in a number of regulatory documents, including: the Doctrine of Food Security of the Russian Federation; the Strategy for Scientific and Technological Development of the Russian Federation; the Strategy for Improving the Quality of Food Products in the Russian Federation until 2030; and, others. The stated goals are: updating the priority tasks of group and individual products identification, including on biological and geographical features; unification of evaluation criteria and objective principles for expanding their field; traditional technologies transformation, the potential of which doesn't have the possibility of unlimited replication, etc. It is predicted that the growth of production volumes, processes and consumption systems optimization will be based on the application of a number of basic principles: “lifetime” formation of raw materials composition and properties; development of highly efficient production technologies and deep processing of agricultural products; implementation of algorithms for structuring logistics, storage and processing/disposal of food and waste; increasing energy efficiency of production processes, etc. At the same time, the strategic vectors of technology development are specialized and personalized nutrition, cross-border cooperation, food quality and safety, minimization of negative environmental impact, traceability of the food chain “from field to consumer,” etc. A priori, to achieve all this it will require the introduction of widespread modern technologies, including digital ones, as well as the modernization of traditional and the creation of new methodological and process decisions.


Author(s):  
V. Yu. Ageyets ◽  
Z. V. Lovkis ◽  
Z. V. Koshak ◽  
A. E. Koshak

The paper raises problems of production of domestic compound feed for valuable fish species. The following representatives of valuable fish species are reared in the Republic of Belarus: rainbow trout, sterlet sturgeon, sturgeon, European and African catfish. All these types need high-quality and inexpensive compound feeds. Production of such feed is developing in our country. All the feeds for valuable fish species are extruded in the modern world. A range of raw materials has been studied that can be used as part of compound feeds for valuable fish species, such as Belarusian made fish meal, dry hemoglobin, soy concentrate, and whey fat concentrate. It has been determined that Belarusian fishmeal is of high quality and not inferior in balance to the amino acid composition of imported fishmeal made in Mauritania, and in terms of leucine and isoleucine level, over 2 times exceeds the imported one. Amino acid composition of dry hemoglobin was studied. It was determined that this feed additive can be used only for balancing feed for crude protein level and practically does not contain such an important essential amino acid as methionine. Valuable fish species are predators, for this reason compound feed contain high amount of protein (up to 50 %) and fat (up to 30 %) depending on the type and age of the fish. Therefore, soy protein concentrate can be used in terms of protein content and absence of anti-nutritional substances in compound feed, and whey-fat concentrate can be used for balancing the formulation for fat content. At the same time, the need for development of such deep processing industry in our republic is noted.


2016 ◽  
Vol 67 (3) ◽  
pp. 249-255 ◽  
Author(s):  
Nazan Comlekcioglu ◽  
Ahmet Tutus ◽  
Mustafa Cicekler ◽  
Asuman Canak ◽  
Gulsen Zengin

2020 ◽  
Vol 2 ◽  
pp. 45-53
Author(s):  
Olena Kovaliova ◽  
Yuriy Chursinov ◽  
Viktoriia Kalyna ◽  
Tatyana Khromenko ◽  
Ekaterina Kunitsia

The features of the intensive technology of getting food sprouts with organic acids as an intensifier of germination were studied. The aim was to establish the features of the intensive technology of producing sprouts of different crops with using organic acids at germination (butanedioic, 3-pyridine carbonic, pteroylglutamic). It is important to search new and safe germination stimulators of universal use. Such substances are just the studied organic acids, because positive changes of quality parameters of a ready product are traced at their use in the sprout technology. There was studied the sprout technologies that includes washing, disinfection, step-by-step air-water soaking of grains from different crops and their germination. As a disinfectant and growth stimulator at the stage of grain material soaking, there were used water solutions of the organic acids in the concentration diapason from 0.025 to 2.5 g/l. Due to their use, it became possible to get high-quality healthy food products, namely sprouts of different crops. Organic acid solutions stimulate the germination process and allow to get an essentially higher amount of high-quality sprouts in shorter terms without chemical toxic admixtures. The research results of the influence of the mentioned organic acids on germination indices of different grains materials are presented. Optimal values of concentrations of active substances in solutions have been established. Comparing with the classic technology of using these acids as a growth stimulator for sprouts allows to decrease the total duration of material germination in 1.5–2 times. Due to that it becomes possible to initiate the industrial production of sprouts. The experimental studies proved the effectiveness of using organic acids at getting living sprouts. It is demonstrated, that their use allows not only to intensify grains germination, but also favors more active formation of sprouts. The presented technology of producing sprouts of different crops is innovative. The obtained grain raw materials may be used independently or as an important component of new food products.


2017 ◽  
Vol 156 ◽  
pp. 184-193 ◽  
Author(s):  
A. Gonzalo ◽  
F. Bimbela ◽  
J.L. Sánchez ◽  
J. Labidi ◽  
F. Marín ◽  
...  

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