Synthesis of poly-tetrahydropyrimidine antibacterial polymers and research of their basic properties

2022 ◽  
Author(s):  
Taimin Xu ◽  
Wenlong Li ◽  
Rong Zhang ◽  
Shuaibing Guo ◽  
Bing Yu ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Raw Materials ◽  
Modern Medicine ◽  
Antibacterial Materials ◽  
Basic Properties ◽  
Antibacterial Polymers

Modern medicine has increasingly higher requirements for antibacterial materials. In order to overcome this challenge, we use alkynyl monomers, amino monomers, formaldehyde, and acetic acid as raw materials to synthesize...

scholarly journals Methods of Modıfıcatıon of Used Polyolephınes

2021 ◽  
Vol 1 (2) ◽  
pp. 14-18
Author(s):  
Shixaliyev Kerem Seyfi* ◽  
Keyword(s):  
Functional Group ◽  
Raw Materials ◽  
Basic Properties ◽  
Group 15

After aging, LDIР polyethylene was modified from local raw materials, and 80% of the original characteristics of LDIР polyethylene were restored. As a result of modification of the complex properties of LDIR by zeolite and midwife, enthusiasm is observed. It was determined that per 100 mass parts (wt.h) of LDIR leaving the operation when modified with a functional group - 15-20 wt.h., fillers - 6-8 wt.h. zeolite and 20-25 wt. including shell rock and to some extent it is possible to restore the basic properties of LDIR in certain optimal quantities.

Temperature Dependence of LiMn2O4 Prepared by a Solution Combustion Synthesis in the System of Acetate Salts and Acetic Acid

2012 ◽  
Vol 485 ◽  
pp. 465-468
Author(s):  
Li Li Zhang ◽  
Gui Yang Liu ◽  
Jun Ming Guo ◽  
Bao Sen Wang ◽  
Ying He
Keyword(s):  
Acetic Acid ◽  
Combustion Synthesis ◽  
Raw Materials ◽  
Synthesis Method ◽  
Solution Combustion Synthesis ◽  
Electrochemical Performances ◽  
Metal Foil ◽  
X Ray Diffraction ◽  
Solution Combustion ◽  
Acid Ratio

Spinel LiMn2O4 have been prepared by the solution combustion synthesis method using acetate salts as raw materials and acetic acid as fuel. The phase compositions of the as-prepared products were determined by X-ray diffraction (XRD). The electrochemical performance of the products was tested by using a coin-type half battery versus lithium metal foil as anode material. XRD results suggested that the purities of the products prepared at 500oC are higher than these of the products prepared at 600oC. For the products prepared at 500oC, the purities of the products increase with increasing acetic acid ratios. But for the products prepared at 600oC, the purities of the products decrease with increasing acetic acid ratios. The performance tests indicated that the electrochemical performances of the products prepared at 500oC are better than these of the products prepared at 600oC. The product prepared at 500oC with the acetic acid ratio of 1.0 gets the best performance. The initial capacity of it reaches to 124.8mAh/g at the current density of 75mA/g, and after 50 cycles, the capacity retention is 93.7%.

Enhancing of Acetic Acid Production in Vinegar Production by the Consortium of Aspergillus spp. and Yeasts

2017 ◽  
Vol 866 ◽  
pp. 61-64
Author(s):  
Duongruitai Nicomrat
Keyword(s):  
Acetic Acid ◽  
Acid Production ◽  
Raw Materials ◽  
Bacterial Species ◽  
Acetic Acid Bacteria ◽  
Sugar Production ◽  
Acetic Acid Production ◽  
Fermented Broth ◽  
Two Stages ◽  
Diverse Groups

Fresh fruit vinegar fermentation is well known for the activities of diverse groups of microorganisms at two stages of the fermentation process. Their species diversity depend on the raw materials fermented. In the study, at the first step of high sugar production, less culturable acetic acid bacterial species but more Aspergillus spp. and yeasts, non-Saccharomyces were detected. At the end, the vinegar production step, the fermented broth showed only dominant acetic acid bacteria. In the study, yeasts and fungi were isolated and inoculated to the juice. The results showed that these consortium could help increase high alcohol and later more acetic acid production when compared with the control fruit vinegar fermentation.

Conversion of Biomass-Derived Oxygen-Containing Intermediates into Chemical Raw Materials with Zeolite

2014 ◽  
Vol 625 ◽  
pp. 298-305 ◽  
Author(s):  
Takashi Goshima ◽  
Keisuke Ikeda ◽  
Kenta Fukudome ◽  
Kei Mizuta ◽  
Shuji Mitsuyoshi ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Butyric Acid ◽  
Levulinic Acid ◽  
Raw Materials ◽  
New Production ◽  
Gaseous Hydrocarbon ◽  
Hydrothermal Reactions ◽  
Production Route ◽  
Maximum Value ◽  
High Yields

To establish a new production route of biomass-derived BTX and propylene, the catalytic conversion of oxygen-containing intermediates which are furfural, levulinic acid, acetic acid or butyric acid, obtained by hydrothermal reactions of bagasse or fermentation of molasses was investigated with zeolites, ZSM-5, SAPO-11 and SAPO-34. Levulinic acid and acetic acid were suitable for generating BTX with ZSM-5. On the other hand, the butyric acid was valuable for converting to chemical raw materials with ZSM-5. By using SAPO-11 as the catalyst, butyric acid converted to propylene at high yields. The yield for propylene was the maximum value 58.8C% at 723K, especially the ratio of propylene to gaseous hydrocarbon products increased up to 90.4C%.

scholarly journals The Chemical Fermentation Process Properties, Bioactive Compounds, and Health Benefits of Fruit Vinegars in Pilot-Scale in Thailand

2021 ◽  
Vol 18 (4) ◽  
Author(s):  
Wilawan BOONSUPA
Keyword(s):  
Acetic Acid ◽  
Bioactive Compounds ◽  
Fermentation Process ◽  
Raw Materials ◽  
Health Benefits ◽  
Liquid Product ◽  
Chemical Properties ◽  
Bioactive Compound ◽  
Pilot Scale ◽  
Total Phenolic

Vinegar is a liquid product produced from alcoholic and acetous fermentation. Vinegar contains acetic acid and bioactive compounds, which are brewed by liquid-state and solid-state fermentation techniques. This study reviews chemical fermentation process properties, bioactive compounds, and health benefits of fruit vinegars in Thailand. Chemical properties are the alcohol percentage and acetic acid percentage of vinegar. Bioactive compounds include antioxidant activity and total phenolic content, which have the role of antioxidative activity, blood pressure and glucose control, and anti-tumor. However, further studies are needed to find the new fruit raw materials to produce fruit vinegar which have more bioactive compound and more good taste.

scholarly journals ASPECTS OF VINEGARS PRODUCTION AND MARKETING IN MOLDOVA

2021 ◽  
Vol IV (2) ◽  
pp. 128-138
Author(s):  
Alina Boistean ◽  
Keyword(s):  
Acetic Acid ◽  
Raw Materials ◽  
Production Method ◽  
Raw Material ◽  
Local Market ◽  
Tropical Fruit ◽  
Current Trends ◽  
The World ◽  
Different Types ◽  
Balsamic Vinegar

Vinegar is one of the oldest fermented products in the world and its production dates back to around 2000 BC. It is a liquid fermentation product that consists from 4% to 9% acetic acid, which is commonly used and consumed globally, either directly or as a condiment in food. It is produced by two-stage fermentation systems, i.e., the alcoholic fermentation of sugary substrates and subsequently, the acetous fermentation (oxidation) of the ethanol into acetic acid. There are numerous different types of vinegars produced worldwide based on the raw material and the production method used. Among all the vinegars available, the most common types of vinegar, produced in different parts of the world, and including some top-quality famous products, are “cider vinegar,” “balsamic vinegar,” “wine vinegar,” “rice vinegar,” and “malt vinegar.” Tropical fruit vinegars and vinegars made from any kind of agricultural surpluses are also available. The different raw materials and the methods used for the production of the different types of vinegars lead to a variety of products with distinctive characteristics. In this paper, definitions, local market and legislation and current trends in vinegar production are briefly highlighted and discussed.

scholarly journals RECOVERY OF PERFORMED COOKING SOLUTIONS AT OXIDATIVE-ORGAN-SOLVENT WARNES IN NEEDRE PLANT RAW MATERIALS

2019 ◽  
pp. 277-284
Author(s):  
Alesya Valer'yevna Vurasko ◽  
Anastasiya Rashitovna Minakova ◽  
Elena Igorevna Simonova
Keyword(s):  
Acetic Acid ◽  
Organic Solvent ◽  
Woody Plant ◽  
Raw Materials ◽  
Azeotropic Distillation ◽  
Alkaline Treatment ◽  
Constant Amount ◽  
Plant Materials ◽  
Plant Raw Materials ◽  
Mineral Components

The possibility of recovering the spent cooking solution with the replacement of the missing amount of lignifying reagents in the oxidative-organic solvent cooking of non-woody plant raw materials (rice husk) with preliminary alkaline treatment and the production of technical pulp with desired properties is shown. Analysis of scientific and patent information revealed that two methods of regeneration are used for regeneration of spent cooking solutions during oxidation-organosolve cooking: azeotropic distillation and return of part of the spent cooking solution for re-cooking with the completion of the missing amount of reagents. For the oxidation-organosolvent cooking non-wood plant materials the most promising is the second option. To avoid the preservation of mineral components in industrial pulp, non-wood plant materials are subjected to alkaline treatment. It has been established that to obtain technical pulp with recovery of the spent cooking solution, it is required two times less acetic acid and 1.7 times fresh water as compared to oxidation-organic solvent cooking under standard conditions with a constant amount of caustic soda.

scholarly journals PHARMACOGNOSTIC ANALYSIS OF THE FRUITS OF MOUNTAIN ASH FOR THE PURPOSE OF SUBSEQUENT DEVELOPMENT OF MEDICINAL PRODUCTS BASED ON RAW MATERIALS

ASJ. ◽  
2021 ◽  
Vol 1 (51) ◽  
pp. 9-13
Author(s):  
E. Kozmidi E. ◽  
E. Tyutikova
Keyword(s):  
Raw Materials ◽  
Subsequent Development ◽  
Modern Medicine ◽  
Medicinal Products ◽  
Mountain Ash

In the course of studying scientific articles about the properties of the fruits of mountain ash and their use in modern medicine, it was revealed that the fruits of this plant are rarely used in the development of pharmaceuticals, although mountain ash has many useful properties.

scholarly journals Biologically active substances of some species of the genus Asteraceae

2021 ◽  
Vol 1 (79) ◽  
pp. 62-69
Author(s):  
A. K. Kamysbaevа ◽  
◽  
G. E. Azimbaeva ◽  
Keyword(s):  
Chemical Composition ◽  
Raw Materials ◽  
Folk Medicine ◽  
Modern Medicine ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Plant Raw Materials ◽  
Chemical Composition Of Plants ◽  
Asteraceae Family ◽  
Active Substances

Currently, 40% of drugs used in modern medicine are obtained from plant raw materials. Among the wild flora there are medicinal plant species containing a variety of chemical composition, including biologically active substances with antimicrobial activity and phytoncidal properties. This article presents biologically active substances of some species of the genus Asteraceae . The chemical composition of plants belonging to the Asteraceae family is represented by anthocyanins, inulins, pectins, flavonoids, proteins, cloves, fatty oils, coumarins, carotenes and polyphenols. The plant of the Asteraceae family is used in folk medicine as an anti-inflammatory, antitumor and cardiotonic agent.

scholarly journals Methods of Modıfıcatıon of Used Polyolephınes

2021 ◽  
pp. 14-18
Author(s):  
Shixaliyev Kerem Seyfi ◽  
Keyword(s):  
Functional Group ◽  
Raw Materials ◽  
Basic Properties ◽  
Group 15

After aging, LDIР polyethylene was modified from local raw materials, and 80% of the original characteristics of LDIР polyethylene were restored. As a result of modification of the complex properties of LDIR by zeolite and midwife, enthusiasm is observed. It was determined that per 100 mass parts (wt.h) of LDIR leaving the operation when modified with a functional group – 15-20 wt.h., fillers – 6-8 wt.h. zeolite and 20-25 wt. including shell rock and to some extent it is possible to restore the basic properties of LDIR in certain optimal quantities.

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