Mechanism of natural acid-formation of shungite rocks and its role in industrial introduction

2018 ◽  
Author(s):  
Владимир Рафиенко ◽  
Vladimir Rafienko
Keyword(s):  
Material Processing ◽  
Natural Resources ◽  
High Technology ◽  
Raw Material ◽  
Acid Formation ◽  
Major Drawback ◽  
Broad Application ◽  
Material Processing Technology ◽  
Rational Management ◽  
First Time

For the first time the mechanism of natural acid-formation of shungite rocks in preliminary grinding processes is studied and substantiated explicitly. Acid-formation of shungite headings in the technical processing is the major drawback constraining broad application of finely-dispersed shungite rocks. The application sphere of neutralized shungite products will be essentially broaden and high-technology branches of industrial production will get qualitative product with unique properties that shungite rocks possess. The book would be interesting for specialists in the sphere of mineral raw material processing technology, geochemists, as well as it can be useful for PhD students, researches and those working in the industry connected with matters of rational management of natural resources.

Assessment of recreational use of specially protected natural territories of Tatishchevsky district of Saratov region

2019 ◽  
Vol 27 (2) ◽  
pp. 117-127
Author(s):  
Yulia M Andriyanova ◽  
Irina V Sergeeva ◽  
Yulia M Mokhonko ◽  
Natalia N Gusakova
Keyword(s):  
Natural Resources ◽  
Protected Areas ◽  
Saratov Region ◽  
Future State ◽  
Forest Phytocenoses ◽  
Long Time ◽  
Main Components ◽  
First Time ◽  
Recreational Use ◽  
Specially Protected Natural Territories

The influence of recreation being a set of measures to restore health and recreation, on the main components of forest phytocenoses in specially protected natural territories of the Tatishchevsky district of the Saratov region has been studied for the first time. These phytocenoses have been intensively used for tourism for a long time. The intensity and visits activity of protected areas has been determined; the recreational capacity of territorial objects has been studied. The degree of forest landscapes has been revealed in specially protected natural territories. The findings allow predicting the future state of the natural resources of the Saratov region and can be taken into account when assessing their optimal use.

The invasive aphid Pterochloroides persicae (Cholodkovsky, 1899) (Hemiptera: Aphidoidea: Lachninae) recorded on important fruit trees in Kashmir Valley, India

2018 ◽  
Vol 10 (5) ◽  
pp. 11672 ◽  
Author(s):  
Govindasamy Mahendiran ◽  
Shahid Ali Akbar ◽  
Mudasir Ahmad Dar
Keyword(s):  
Management Practices ◽  
Fruit Trees ◽  
Kashmir Valley ◽  
Central Institute ◽  
Rational Management ◽  
First Time

Pterochloroides persicae (Cholodkovsky, 1899) is reported here for the first time from the Kashmir Valley. The aphid is seen to infest almond, peach, plum orchards in the region.  Monitoring of the pest was carried out in the peach and almond fields of the Central Institute of Temperate Horticulture (CITH) during the years 2014–2016. Seasonality and bio-rational management practices of the pest are discussed. 

Biosynthetic strategies for tetramic acid formation

2021 ◽  
Author(s):  
Xuhua Mo ◽  
Tobias A. M. Gulder
Keyword(s):  
Molecular Mechanism ◽  
Gene Clusters ◽  
Acid Formation ◽  
Biosynthetic Gene ◽  
Tetramic Acid ◽  
Biosynthetic Gene Clusters ◽  
The Individual ◽  
First Time ◽  
Acid Unit

Over 30 biosynthetic gene clusters for natural tetramate have been identified. This highlight reviews the biosynthetic strategies for formation of tetramic acid unit for the first time, discussing the individual molecular mechanism in detail.

scholarly journals Possibilities of the Development of Edible Insect-Based Foods in Europe

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 766
Author(s):  
Magdalena Skotnicka ◽  
Kaja Karwowska ◽  
Filip Kłobukowski ◽  
Aleksandra Borkowska ◽  
Magdalena Pieszko
Keyword(s):  
Material Processing ◽  
Functional Food ◽  
The Other ◽  
Raw Material ◽  
Edible Insects ◽  
Mineral Salts ◽  
Edible Insect ◽  
Alternative Protein ◽  
The World ◽  
The One

All over the world, a large proportion of the population consume insects as part of their diet. In Western countries, however, the consumption of insects is perceived as a negative phenomenon. The consumption of insects worldwide can be considered in two ways: on the one hand, as a source of protein in countries affected by hunger, while, on the other, as an alternative protein in highly-developed regions, in response to the need for implementing policies of sustainable development. This review focused on both the regulations concerning the production and marketing of insects in Europe and the characteristics of edible insects that are most likely to establish a presence on the European market. The paper indicates numerous advantages of the consumption of insects, not only as a valuable source of protein but also as a raw material rich in valuable fatty acids, vitamins, and mineral salts. Attention was paid to the functional properties of proteins derived from insects, and to the possibility for using them in the production of functional food. The study also addresses the hazards which undoubtedly contribute to the mistrust and lowered acceptance of European consumers and points to the potential gaps in the knowledge concerning the breeding conditions, raw material processing and health safety. This set of analyzed data allows us to look optimistically at the possibilities for the development of edible insect-based foods, particularly in Europe.

scholarly journals Determination of Essential Oil Bioactive Components and Rosmarinic Acid of Salvia officinalis Cultivated under Different Intra-row Spacing

2013 ◽  
Vol 5 (2) ◽  
pp. 198-203 ◽  
Author(s):  
Mohammad ABU DARWISH ◽  
Ezz Al-Dein AL-RAMAMNEH ◽  
Ivan SALAMON ◽  
Ziad ABU-DIEYEH ◽  
Mohamed AL NAWAISEH ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Rosmarinic Acid ◽  
Plant Density ◽  
Salvia Officinalis ◽  
Raw Material ◽  
Row Spacing ◽  
Human Disorders ◽  
Tea Production ◽  
First Time

Salvia officinalis, known also as sage, is a medicinal plant belonging to the Lamiaceae family that spreads all over the word in several countries. The demand for the raw material and extracts of this plant is increasing due to its numerous applications in pharmacy, food and herbal tea production. The present study investigated for the first time the effect of 15, 30 and 45 cm intra-row spacing (plant density) on the main constituents of sage essential oils and rosmarinic acid content. The highest content of essential oils (2.7%) and rosmarinic acid (2.0%) were obtained in plants grown using 15 cm planting space. Likewise, close spacing resulted also in a substantial content of 1,8-cineole (47-50%, GC/FID; 55-60%, GC/MS). This work indicated that 1,8-cineole chemotype was a dominant character of cultivated S. officinalis in south of Jordan. In general, the percent of α-thujone in essential oil was not affected by intra-row spacing. However, the percent of β-thujone decreased from (2-3%, GC/MS) in plants grown using 15 cm intra-row spacing to (1-2%, GC/MS) in plants grown using 30 and 45 cm intra-row spacing. The highest content of α-and β-pinene was recorded in plants grown using 45 cm planting space (8-10%, GC/FID; 5-6% GC/MS). Based on GC/MS, camphor compound was enriched (9-10%) in sage plants grown under 15 cm spacing and greater than in plants grown under 30 (6-7%) or 45 cm (5-6%) spacing. The results make the potential use of sage extracts in the treatment of some human disorders or illness an area of further research.

scholarly journals A Novel Approach to Fabricate Foam Ceramics from Steel Slag

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Yu Zheng ◽  
Xudong Luo ◽  
Jinlong Yang ◽  
Wenlong Huo ◽  
Chi Kang
Keyword(s):  
Compressive Strength ◽  
Ph Value ◽  
Steel Slag ◽  
Raw Material ◽  
Solid Loading ◽  
Insulation Material ◽  
Ceramic Foams ◽  
Novel Approach ◽  
The Stability ◽  
First Time

A novel approach is used for fabricating steel slag foam ceramics based on the particle-stabilized foaming method. In this work, steel slag was used as the raw material and propyl gallate (PG) was used as the surface modifier. For the first time, steel slag ceramic foams were successfully fabricated based on particle-stabilized foams. The results show that the stability of the ceramic foams was closely related to the pH value and PG concentration. The porosity and compressive strength could be controlled by changing the solid loading of steel slag and sintering temperature. The porosity of steel slag foam ceramics ranged from 85.6% to 62.53%, and the compressive strength was from 1.74 MPa to 10.42 MPa. The thermal conductivity of steel slag foam ceramics was only 0.067 W (m·K)−1, which shows that it could be used as a thermal insulation material.

Possible Causes in Breaking of Dental Implants Research

2017 ◽  
Vol 907 ◽  
pp. 104-118
Author(s):  
Maria Stoicănescu ◽  
Eliza Buzamet ◽  
Dragos Vladimir Budei ◽  
Valentin Craciun ◽  
Roxana Budei ◽  
...  
Keyword(s):  
Dental Implants ◽  
Dental Implant ◽  
Scientific Literature ◽  
Surface Characteristics ◽  
Raw Material ◽  
New Materials ◽  
Materials Used ◽  
Type Of Failure ◽  
First Time ◽  
Consequent Increase

Dental implants are becoming increasingly used in current dental practice. This increased demand has motivated manufacturers to develop varieties of product through design, but also looking for new materials used to improve surface characteristics in order to obtain a better osseointegration. But the increase in the use of implants goes to a consequent increase in the number of failures. These failures are caused either by treatment complications (peri-implantitis), by fatigue breakage under mechanical over-stress, by defective raw material, or due to errors during the insertion procedures. Although they are rare, these complications are serious in dentistry. Before to market a dental implant to clinical practitioners, the product is validated among other determinations in number of biocompatibility research. Raw material issues, details about its structure and properties are less published by the scientific literature, but all this are subject of a carefully analysis of the producers. Breaking of dental implants during surgical procedures, during the prosthetic procedures or during use (chewing, bruxism, accidents, etc.), is the second most common cause of loss of an implant after consecutive peri-implantitis rejection. Although the frequency of this type of failure for a dental implant is much smaller than those caused by the peri-implantitis, a detailed study of broken implants can explain possible causes. The use of scanning electron microscopy (SEM) in the study of the cleave areas explain the production mechanism of cleavages, starting from micro-fissures in the alloy used for the production of dental implants. These micro-fissures in weak areas of the implant (anti-rotational corners of the polygons, etc.) could generate a serious risk of cleavage first time when a higher force is applied.

Comparative Analysis of the Proteomic Profile of Cattle Hides that Produce Loose and Tight Leather using In-Gel Tryptic Digestion followed by LC-MS/MS

2020 ◽  
Vol 115 (11) ◽  
pp. 399-408
Author(s):  
Catherine Maidment ◽  
Meekyung Ahn ◽  
Rafea Naffa ◽  
Trevor Loo ◽  
Gillian Norris
Keyword(s):  
Type I Collagen ◽  
Raw Material ◽  
Type I ◽  
Collagen Structure ◽  
Proteomic Profile ◽  
Collagen Network ◽  
Collagen Concentration ◽  
Different Types ◽  
Molecular Components ◽  
First Time

Looseness is a defect found in leather that reduces its quality by causing a wrinkly appearance in the finished product, resulting in a reduction in its value. Earlier studies on loose leather using microscopy and Raman spectroscopy reported a change in the collagen structure of loose leather. In this study, proteomics was used to investigate the possible molecular causes of looseness in the raw material, the first time such a study has been carried out. Proteins extracted from two regions of raw hide using two different methods were analysed; those taken from the distal axilla, an area prone to looseness, and those taken from the backbone which is less prone to looseness. Analyses using 1DE-LC-MS/MS showed that although the overall collagen concentration was similar in both areas of the hide, the distribution of the different types of collagen differed.  Specifically, concentrations of type I collagen, and the collagen-associated proteoglycan decorin were lower in samples taken from the distal axilla, symptomatic of a collagen network with excess space seen for these samples using confocal microscopy. This study suggests a possible link between the molecular components of raw cattle hide and looseness and more importantly between the molecular components of skin and skin defects. There is therefore potential to develop biomarkers for looseness which will enable early preventative action.

scholarly journals Universal multifunctional device for heat and mass exchange processes during organic raw material processing

2018 ◽  
Vol 6 (1 (96)) ◽  
pp. 47-54 ◽  
Author(s):  
Aleksey Zagorulko ◽  
Andrii Zahorulko ◽  
Kateryna Kasabova ◽  
Vitalii Chervonyi ◽  
Oleksandr Omelchenko ◽  
...  
Keyword(s):  
Material Processing ◽  
Mass Exchange ◽  
Raw Material ◽  
Heat And Mass Exchange ◽  
Exchange Processes ◽  
Multifunctional Device

scholarly journals THE STUDY OF TECHNOLOGICAL PARAMETERS OF PECTIN CONTAINING RAW MATERIAL PROCESSING IN THE VEGETABLE-MILK FORCEMEATS TECHNOLOGY

2016 ◽  
Vol 4 ◽  
pp. 29-36
Author(s):  
Grygoriy Deynychenko ◽  
Victoriya Gnitsevych ◽  
Tatiana Yudina ◽  
Iryna Nazarenko ◽  
Olena Vasylieva
Keyword(s):  
Material Processing ◽  
Milk Proteins ◽  
Raw Material ◽  
Experiment Planning ◽  
Technological Parameters ◽  
Medium Temperature ◽  
Methods Of Determination ◽  
Vegetable Milk ◽  
Β Carotene

The algorithm of the study that includes theoretical analysis and physical experiment was elaborated for the study of technological parameters of pectin containing raw material processing in the vegetable-milk forcemeats technology. The expedience of using carrot Shantenee, pumpkin Guiley and marrow Zolotinka as the sources of pectin substances in the technology of combined forcemeats on the milk base was grounded. Technological parameters of pectin containing raw material processing for realization of its target properties as an amendment and stabilizer of the structure in milk-vegetable forcemeats technology were theoretically grounded. The methods of determination of soluble pectin and protopectin content and also the methods of determination of рН medium were chosen. The methods of experiment planning and mathematical processing of experimental data were carried out using computer programs MS Excel 97 2003 and MatCAD. The influence of рН medium, temperature and duration of thermal processing of carrot, pumpkin and marrow on the process of accumulation of soluble pectin in them was studied. The formation technology of puree of the vegetables that have the increased viscosity and are not stratified at the storage and further use. Accumulation of soluble pectin that expresses the properties of structure stabilizer and favors the increase of vegetable puree viscosity causes the expedience of its use in milk-vegetable forcemeats technology. The use of vegetable puree in milk-vegetable forcemeats technology allows widen the assortment and provide the mutual enrichment of the receipt components of combined forcemeat masses with milk proteins, β-carotene, food fibers, vitamins and other functional ingredients.

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