scholarly journals Technology of fish semi-finished products using antimicrobial compositions with organic acids and salts

2019 ◽  
Vol 81 (1) ◽  
pp. 94-98
Author(s):  
I. A. Timoshenkova ◽  
Y. G. Bazarnova
Keyword(s):  
Organic Acids ◽  
Shelf Life ◽  
Antimicrobial Agents ◽  
Raw Materials ◽  
Effective Concentration ◽  
Raw Material ◽  
Regression Equations ◽  
Active Components ◽  
Actual Problem

The actual problem of business is the low quality of fish raw materials due to the delay in deliveries from the manufacturer. The search for new technological solutions to extend the shelf life of fish raw materials due to the reduction of microbiological contamination is relevant. A technology is proposed for the production of natural fish semi-finished products using antimicrobial compositions based on organic acids and salts. Chilled carcasses, semi-finished products of trout (fillet with skin) and antimicrobial agents based on organic acids and salts (Dilactopolydon (DLP) and Dilactin Forte Plus (DFP) were used as objects of research. The choice of the most effective concentration of the DLP solution for processing trout carcasses was carried out using the mathematical method of a single-factor experiment and the Statgraphics Centurion computer program. Regression equations with high correlation coefficients are obtained. The most effective concentration of DLP during processing of trout carcasses before cutting into a piece of fillet with peel was set at 2% when the ratio of raw material to the additive solution was 1: 1 and aged for 20 minutes. This reduces the risk of re-contamination of fish carcasses during cutting due to the retention of the active components of DLP on the surface of the capillaries of the muscle tissue of the fish. A method for processing fish raw materials and natural semi-finished products with antimicrobial compounds DLP and DFP has been developed, which allows maintaining the quality of cooled semi-finished products for 13 days. This ensures a shelf life of 10 days. The developed technology has been tested under production conditions..

scholarly journals The use of capillary electrophoresis in the evaluation of food and beverages

2020 ◽  
Vol 82 (1) ◽  
pp. 82-87
Author(s):  
D. V. Zipaev ◽  
A. A. Tulina ◽  
A. N. Kozhukhov
Keyword(s):  
Capillary Electrophoresis ◽  
Organic Acids ◽  
Raw Materials ◽  
Multicomponent System ◽  
Raw Material ◽  
Synthetic Dyes ◽  
Detection Zone ◽  
Bottom Line ◽  
Food And Beverages

The method of capillary electrophoresis can be used to assess the quality, safety, falsification and identification of food and beverages. It is characterized by high accuracy (up to 97%) and efficiency. Using it, you can determine the content of various cations and anions, organic acids, carbohydrates, vitamins, amino acids, preservatives, antioxidants, flavonoids, synthetic dyes, which are of great importance for the technological control of production at the enterprise. The method of capillary electrophoresis allows you to determine the naturalness and quality of soft drinks and alcoholic drinks by detecting the presence or absence of organic acids in the sample, as well as analyzing their quantitative content and ratio, makes it possible to control enzymatic processes and correlate with the taste of the final product. In addition, this method can be used to assess the quality of water used as the main raw material for the production of beverages. It allows you to determine the content of pesticides and fungicides in the raw materials used for the production of food and beverages. The method is based on the electromigration of ions and electroosmosis and, as a consequence, the separation of a complex multicomponent system in a quartz capillary. The bottom line is that after applying voltage up to 30 kV to the prepared capillaries for analysis, the components of the mixture begin to move along the capillary at different speeds, thereby reaching the detection zone at different times. Thus, separation and subsequently detection of the test substances in a particular product, drink or raw material is achieved.

scholarly journals THE EFFECT OF THE ENERGY PROCESS ON THE CHEMICAL COMPOSITION OF PLANT RAW MATERIAL OB-TAINED FROM LEAVES OF THE ASPEN OF THE GENERAL

2018 ◽  
pp. 251-259
Author(s):  
Aleksandra Viktorovna Nekhorosheva ◽  
Sergey Viktorovich Nekhoroshev ◽  
Aleksey Anatol'yevich Drenin ◽  
Erkin Hozhiakbirovich Botirov ◽  
Nikolay Viktorovich Gornikov ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Raw Materials ◽  
Biologically Active ◽  
Raw Material ◽  
Comparative Characteristic ◽  
Active Components ◽  
Extractive Substances ◽  
Vegetable Raw Materials ◽  
Analytical Approaches

The analysis of the chemical composition of the vegetable raw materials received from leaves of an aspen ordinary, family plants Willow (Salicaceae), growing in the territory of the Khanty-Mansi autonomous district Yugra is provided in article. The choice of raw materials is caused by a large supply and fast reproducibility of a raw resource. In work numerical indicators and indicators of high quality of raw materials are established (humidity, the general ashes, sulphatic ashes, ashes not soluble in 10% to hydrochloric acid, extractive substances). The way of extraction of vegetable raw materials is reasonable, the comparative characteristic of content of extractive substances is provided in the received extracts. It is shown that the average content of extractive substances in native samples is 27.9%, the content of polysaccharides – 10.9%. The qualitative and quantitative analysis of biologically active agents is carried out by method of a highly effective liquid chromatography. The dominating components in samples of the plants growing in the territory of one land plot are салицин 510 mg of %, гиперозид 170 mg of %, routines of 210 mg of %. Influence of process of fermentation on the chemical composition of the vegetable raw materials received from leaves of an aspen ordinary is studied. The greatest exit of phenolic connections at impact on vegetable raw materials of fermentation is established by cold. The positive effect of impact of fermentation by crushing on quantity of the identified biologically active components is defined. Work was carried out for assessment of phytochemical parameters of quality of vegetable raw materials and formation of justification of analytical approaches to diagnostics of vegetable raw materials of the explored territory.

Mathematical fundamentals of the method of identification of metal inclusions in raw materials with automatic determination of their coordinates

2021 ◽  
Vol 103 (3) ◽  
pp. 23-32
Author(s):  
Leonid Zamikhovskyi ◽  
Ivan Levitskyi ◽  
Mykola Nykolaychuk ◽  
Yuriy Striletskyi
Keyword(s):  
Raw Materials ◽  
Experimental Studies ◽  
Conveyor Belt ◽  
Raw Material ◽  
Automatic Determination ◽  
Actual Problem ◽  
Theoretical Substantiation ◽  
Excitation Coil

The article deals with the actual problem of theoretical substantiation of the method of identification (diagnosis) of metal inclusions (hereinafter referred to as metal inclusions) in bulk raw materials under the conditions of a conveyor belt. The presence of metal inclusions in the raw material transported by the conveyor belt can lead to both emergencies and deterioration in the quality of the output product. The identification method provides for diagnosing the presence of metal inclusions, determining its dimensions, type of metal and coordinates relative to the cross-section of the conveyor belt. The results of theoretical and experimental studies of the method for identifying metal inclusions based on a scanning signal and an additional excitation coil are considered. A mathematical model has been developed for determining the position of metal inclusions on a conveyor belt relative to a line perpendicular to the axis between two excitation coils, including two trajectories for determining coordinates for three excitation coils and two receiving coils.

TECHNOLOGICAL ASPECTS OF HIGH QUALITY RAW MATERIAL OBTAINING FOR PECTIN PRODUCTION

1970 ◽  
pp. 47-50
Author(s):  
I. A. Ilina ◽  
I. A. Machneva ◽  
E. S. Bakun
Keyword(s):  
Raw Materials ◽  
Thermal Characteristics ◽  
Environmental Safety ◽  
Raw Material ◽  
High Quality ◽  
Temperature Conductivity ◽  
Drying Temperature ◽  
Plant Raw Materials ◽  
Gel Forming Ability

  The article is devoted to the study of the chemical composition, physical and thermal-pfysical characteristics of damp apple pomaces and the identifying patterns of influence of drying temperature the functional composition and gel-forming ability of pectin. The research is aimed at obtaining initial data for the subsequent calculation of the main technological, hydro-mechanical, thermal, structural and economic characteristics of devices for drying the plant raw materials, ensuring the environmental safety and high quality of pectin-containing raw materials, the reducing heat and energy costs. As a result of the study of the thermal characteristics of apple pomaces, the critical points (temperature conductivity – 16.5 x 10-8 m2/s, thermal conductivity – 0.28 W/m K, heat capacity – 1627 j/(kg K)) at a humidity of 56 % are determined, which characterizing the transition from the extraction of weakly bound moisture to the extraction of moisture with strong bonds (colloidal, adsorption). It was found that the pomaces obtained from apples of late ripening have a higher content of solids (21-23 %), soluble pectin and protopectin (2.5-4.5 %). Dried pomaces obtained from apple varieties of late ripening contain up to 25 % pectin, which allow us to recommend them as a source of raw materials for the production of pectin. The optimum modes of preliminary washing of raw materials are offered, allowing to the remove the ballast substances as much as possible. It is established that when the drying temperature increases, the destructive processes are catalyzed: the strength of the pectin jelly and the uronide component and the degree of pectin esterification are reduced. The optimum drying temperature of damp apple pomaces is 80 0C, at which the quality of pectin extracted from the dried raw materials is maintained as much as possible. It is shown that the most effective for the pectin production is a fraction with a particle size of 3-5 mm, which allow us to extract up to 71 % of pectin from raw materials.

scholarly journals A Methodology Based on FT-IR Data Combined with Random Forest Model to Generate Spectralprints for the Characterization of High-Quality Vinegars

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1411
Author(s):  
José Luis P. Calle ◽  
Marta Ferreiro-González ◽  
Ana Ruiz-Rodríguez ◽  
Gerardo F. Barbero ◽  
José Á. Álvarez ◽  
...  
Keyword(s):  
Random Forest ◽  
Raw Materials ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Raw Material ◽  
Support Vector ◽  
Protected Designation Of Origin ◽  
Ft Ir

Sherry wine vinegar is a Spanish gourmet product under Protected Designation of Origin (PDO). Before a vinegar can be labeled as Sherry vinegar, the product must meet certain requirements as established by its PDO, which, in this case, means that it has been produced following the traditional solera and criadera ageing system. The quality of the vinegar is determined by many factors such as the raw material, the acetification process or the aging system. For this reason, mainly producers, but also consumers, would benefit from the employment of effective analytical tools that allow precisely determining the origin and quality of vinegar. In the present study, a total of 48 Sherry vinegar samples manufactured from three different starting wines (Palomino Fino, Moscatel, and Pedro Ximénez wine) were analyzed by Fourier-transform infrared (FT-IR) spectroscopy. The spectroscopic data were combined with unsupervised exploratory techniques such as hierarchical cluster analysis (HCA) and principal component analysis (PCA), as well as other nonparametric supervised techniques, namely, support vector machine (SVM) and random forest (RF), for the characterization of the samples. The HCA and PCA results present a clear grouping trend of the vinegar samples according to their raw materials. SVM in combination with leave-one-out cross-validation (LOOCV) successfully classified 100% of the samples, according to the type of wine used for their production. The RF method allowed selecting the most important variables to develop the characteristic fingerprint (“spectralprint”) of the vinegar samples according to their starting wine. Furthermore, the RF model reached 100% accuracy for both LOOCV and out-of-bag (OOB) sets.

IMPACT OF INNOVATIVE METHOD OF PREPARING TOBACCO LEAVES FOR DRYING ON THE BASIC PARAMETERS OF QUALITY OF TOBACCO RAW MATERIAL

2019 ◽  
Author(s):  
Е.Е. Ульянченко
Keyword(s):  
Chemical Composition ◽  
Quality Indicators ◽  
Raw Materials ◽  
Raw Material ◽  
Tobacco Leaves ◽  
Commercial Grade ◽  
Innovative Method ◽  
Main Indicator ◽  
Basic Parameters

Исследовано влияние приема прорезания средней жилки на основные качественные показатели табачного сырья. Исследования проводили на листьях основных сортотипов табака Трапезонд и Остролист по массовым ломкам. Прорезание жилки осуществляли на инновационном оборудовании экспериментальном образце линии подготовки листьев табака к сушке ЛПТС360 (ВНИИТТИ, Краснодар). Качество табачного сырья с прорезанной жилкой определяли по товарным сортам, технологическим и курительным свойствам, химическому составу по методикам лабораторного контроля ВНИИТТИ. Инновационный способ подготовки табака к сушке в едином потоке с применением технологического оборудования, включающего прорезатель, выявил положительный технологический результат. Установлена эффективность приема прорезания средней жилки: срок естественной сушки листьев с прорезанной жилкой сократился в 2,5 раза выход 1го товарного сорта сырья составил 74,60 87,93 выход волокна сырья с прорезанной жилкой превышает минимальное значение технологических норм (75) в 1,15 1,26 раз условный расход сырья на единицу курительных изделий меньше норматива на 6 25 улучшен основной показатель химического состава табачного сырья (число Шмука) в 1,6 4,6 раза у сортотипа Трапезонд, в 1,2 1,5 раза у сортотипа Остролист дегустационные свойства сырья не ухудшились. Инновационный способ подготовки листьев табака к сушке, включающий прием прорезания средней жилки, рекомендуется для применения в производстве табачного сырья. The influence of middle vein cutting method on the main quality indicators of tobacco raw materials is studied. Studies were carried out on the leaves of the main varieties of tobacco Trapezond and Ostrolist, on mass breakdowns. Vein cutting was carried out on the innovative equipment of the line of preparation of tobacco leaves for drying LPTS360 (GNU VNIITTI RAA, Krasnodar). The quality of tobacco raw materials with a cut vein was determined by commercial grades, technological and Smoking properties, chemical composition in accordance with the methods VNIITTI. An innovative method of preparing tobacco for drying in a single stream with the use of technological equipment, including a cutter, revealed a positive technological result. The period of natural drying of leaves with cut veins decreased by 2,5 times. The yield of the 1st commercial grade of raw materials was 74,60 87,93. The output of the fiber raw material with cut vein exceeds the minimum value of technological norms (75) in 1,15 1,26 times. Conditional consumption of raw materials per unit of Smoking products is less than the norm by 6 25. The method of cutting the middle vein of the leaves improves the main indicator in the chemical composition of tobacco raw materials (Schmuck ratio) 1,6 4,6 times in the variety Trapezond and 1,2 1,5 times in the variety Ostrolist. The tasting properties of raw materials have not deteriorated. Analysis of raw material quality indicators showed that the innovative method of cutting the middle vein is effective and recommended for use in the production of tobacco raw materials.

Technological aspects of alcohol distillates production from non-traditional sugar-raw materials

2021 ◽  
Vol 9 (16) ◽  
pp. 90-97
Author(s):  
Kateryna Danilova ◽  
◽  
Oksana Zavarzina ◽  
Keyword(s):  
Raw Materials ◽  
Biologically Active ◽  
Raw Material ◽  
Material Base ◽  
Growth Substances ◽  
Technological Properties ◽  
Actual Problem ◽  
Cane Molasses ◽  
Yeast Biomass ◽  
Nitrogen Phosphorus

An actual problem of the alcohol industry development is the expansion of the raw material base through the use of new, cheaper types of carbohydrate sources. Recently, glucose-fructose syrup has been of increasing interest to producers of ethanol. Among the producers of craft drinks, in particular rum-based drinks, cane molasses is in increasing demand. The article presents the technological aspects of the fermentation process of nonconventional sugar-containing raw materials on the example of glucose-fructose syrup and cane molasses in ethanol by different yeast strains. It is determined that glucose-fructose syrup and cane molasses are raw materials depleted of nitrogen, phosphorus and growth substances necessary for the yeast activity. To improve the technological properties of raw materials in the molasses, nitrogen, phosphorus nutrition and corn extract as a growth substance shall be added to a mash. Glucose-fructose syrup is of pH 3.68 and of acidity 0.12, which negatively affects the fermentation. It is established that in order to create optimal living conditions for yeast, it is necessary to add substances to the glucose-fructose syrup that will contribute to the safety of development and prevent the pH 3.5. It was determined that the alcohol yield from 1 ton of glucose-fructose syrup is 31.0 dal, from 1 ton of cane molasses is 24.0 dal on the yeast 46ED and 22 dal on the TegaYeast without the use of growth substances and vitamins necessary for the reproduction of yeast biomass. Under conditions of improving the technological properties of the mash from the glucose-fructose syrup and cane molasses by adding biologically active substances promoting the synthesis of yeast biomass, the ethanol content in the fermented mashes increases up to 11.9 12% vol.

scholarly journals Antimicrobial Activity and Polyphenol Profiles of Hydroalcoholic Extracts of Thymus rasitatus Klokov and Thymus eremita Klokov

2021 ◽  
Vol 9 (A) ◽  
pp. 313-317
Author(s):  
Svetlana Ivasenko ◽  
Ainur Zhumabekova ◽  
Agnieszka Ludwiczuk ◽  
Krystyna Skalicka–Wozniak ◽  
Alexandr Marchenko ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Chromatographic Analysis ◽  
Antimicrobial Agents ◽  
Raw Materials ◽  
Wide Spectrum ◽  
Raw Material ◽  
Thymus Vulgaris ◽  
Material Base ◽  
Ultrasound Assisted Extraction ◽  
Ethanol Extracts

BACKGROUND: A possible reduction in stocks of medicinal plant raw materials of Thymus serpyllum L. and Thymus vulgaris L. leads to the need to expand the raw material base of the official medicinal plants with using of endemic species of the flora of Kazakhstan, in particular, Thymus rasitatus Klokov, and Thymus eremita Klokov. AIM: The aim of the study was to study the possibility of using 70% ethanol extracts of T. rasitatus and T. eremita as antimicrobial agents. MATERIALS AND METHODS: The aerial parts of T. rasitatus and T. eremita were extracted with 70% ethanol using ultrasound assisted extraction. The qualitative and quantitative analyses of the 70% ethanol extracts were determined using the liquid chromatography-detection-ESI-mass spectrometry-(MS)/MS technique. The study of the antimicrobial activity of these extracts was performed for eight strains of Gram-positive bacteria, six strains of Gram-negative bacteria, and four cultures of fungi. RESULTS: Chromatographic analysis of hydroalcoholic extracts of both investigated Thymus species showed very similar phenolic compounds composition. In both cases, the major components are luteolin-7-O-glucoside and rosmarinic acid. About 70% ethanol extracts of T. rasitatus and T. eremita have a broad spectrum of antimicrobial activity, exhibit the bactericidal or bacteriostatic activity against all tested bacteria and fungi at concentration range of 0.0195–20 mg/ml, but differ in their potency against tested strains of microorganisms. CONCLUSION: About 70% ethanol extracts of T. rasitatus and T. eremita, endemic plants in the flora of Kazakhstan, can be considered as potential drugs with a wide spectrum of antimicrobial activity. The results of chromatographic analysis could be used for drug standardization.

scholarly journals TECHNICAL AND TECHNOLOGICAL SOLUTIONS FOR PREPARING FLAX RAW MATERIALS FOR PROCESSING

2021 ◽  
pp. 227-237
Author(s):  
Yu. Вerezovsky ◽  
T. Kuzmina ◽  
M. Yedynovych ◽  
G. Boyko ◽  
N. Lyalina ◽  
...  
Keyword(s):  
Raw Materials ◽  
Hollow Structure ◽  
Weather Conditions ◽  
Raw Material ◽  
Hollow Structures ◽  
Adverse Weather Conditions ◽  
Adverse Weather ◽  
Long Time ◽  
Experimental Researches

The article contains theoretical and experimental researches in the field of the preservation of flax raw material of high moisture content. In the article, factors that are worsening the quality of flax raw material, resulting in non-observance of agrotechnical and technological requirements of preparing, collecting, harvesting the stem material, adverse weather conditions and other factors, are considered. The objective of this paper is to study the influence of preservation agents’ concentrations and of hollow structure device on the quality of flax raw material during long-time storage. In the article, the influence of aqueous preservatives’ concentration, humidity, storage length on the quality of fibrous products, obtained as a result of processing stem material, is analyzed. The influence of the device of hollow structures, as an alternative to preservatives, on the storage process of bast crops stem material was evaluated. The method of flax retted straw storage is described, actions of the main factors influence on the strength of fibers are analyzed. It is demonstrated, that prolongation of flax raw material preservation time can be made by using preservatives without considerable wastes of quality.

scholarly journals Construction sands of Podillya: patterns of distribution, resources and use

2019 ◽  
Vol 27 (3) ◽  
pp. 510-519
Author(s):  
M. Syvyj ◽  
B. Gavrychok
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Simultaneous Increase ◽  
Clay Material ◽  
Material Base ◽  
Resource Base ◽  
Apparent Correlation ◽  
The Baltic ◽  
Further Development

This article presents the characteristics of the resource base of building sands within the three Podillya regions, the patterns of sands distribution, and proposals for increasing the extraction of raw materials . The construction sands of Podillya are confined to the Upper Cretaceous, Neogene and Anthropogenicdeposits. The decrease of the thickness of the sandy strata of the Opilsk Neogene suite in the eastern direction was observed with the simultaneous increase in the thickness of the overlapping strata of the rocks. There is no apparent correlation between the thickness of sandy interlayers and the quality of sands. The interdependence of the chemical composition of Neogene sands and the sand size module is established.The genetic predisposition for the distribution of building sands in different parts of the Podillya territory has been established. Four groups of sand deposits of different age have been identified within the Podillya regions, which contrast sharply with single deposits in the neighbouring territories.There is a very uneven distribution of explored reserves of sandy raw materials across the region and accordingly in the provision of construction sands in the different oblasts /regions of Podillya. The areas best provided with sandy raw materials are the central districts of Ternopil region and Slavutsky district of Khmelnytsky region . Sands of the Baltic stage distributed in Vinnytsia region are mostly poor in quality, clogged with clay material and require enrichment. The further development of the mineral raw material base and the prospects for increasing the production of construction sand in the Podillya regions is associated with the increase in production at the prepared deposits, the commissioning of reserve deposits, the conducting of prospecting and exploration work in the proposed potentially exploitable areas and additional exploration of individual deposits that are exploited. The research allows us to evaluate objectively the existing base of sand raw materials for various purposes in the Podillya region and to develop on this basis measures to increase it. The importance of the study is determined by the acute shortage of the raw material in most administrative districts of Khmelnytsky and Vinnytsia regions, by the growth in the volume of construction work (and accordingly the requirements for sandy raw materials) both in Podillya and in the country.

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