Posted by admin on Dec 31, 2020 in |
The comparative toxicological characteristic in-vitro and antimicrobial activity to perform stability tests of several linear medium-chain aliphatic monoperoxyacids (perC8–C12) and aliphatic diperoxyacid (diperC9) were studied. Substances of peroxide acids: perС8, perС10, perС12, diperoxyazelaic acid (diperC9) are in 5.6; 22.8; 64 and 1.6 times less toxic than reference substance – peracetic acid (perC2). New knowledge concerning а comparative antimicrobial activity of studied medium-chain aliphatic peracids and their thermal sensitivity was obtained. These fundamental stability studies resulted in the emergence of safe antimicrobic agents. Nonanebis(peroxoic acid) and Peroxyoctanoic acid were proposed as an agent in the chemical disinfection prosses for the first time. Medium-chain aliphatic peracids were demonstrated to be very robust. Sufficiently high bactericidal activity was achieved after relatively short exposition times (from 10 min to 2 h for spores of B. anthracoid), at near-ambient temperature (20 °C). In this work, it has been demonstrated how stability studies can underpin rational design of antimicrobic agents that in turn lead to a both safer and economically viable chemical disinfection and sterilization...
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Posted by admin on Nov 30, 2020 in |
An attempt has been made in the present study to isolate and identify actinomycetes, which can produce bioactive metabolites possessing antimicrobial activity. The soil samples were collected from mangrove sediments of Krishna district, Andhra Pradesh. The potent secondary metabolite producing strains were isolated and designated as VLK-15, VLK-24, and VLK-56. Identification of the strains was carried out basing on morphological, cultural, physiological and biochemical characters. Phylogenetic analysis of 16S rRNA gene sequence showed that the strains VLK-15, VLK-24, VLK-56 form distinct clade within the genus Streptomyces. The 16S rRNA sequences were deposited in the GenBank database of NCBI under the accession numbers MG309759 (Streptomyces olivoverticillatus VLK-15), MG309760 (Strepto-myces rubrus VLK-24), and MF952650 (Streptomyces sampsonii-VLK-56). The antimicrobial activity of the strains was evaluated by using agar well diffusion assay. The ethyl acetate extracts were highly effective against Candida albicans, Staphylococcus aureus, Bacillus megaterium followed by Bacillus subtilis, Escherichia coli and Klebsiella...
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Posted by admin on Nov 30, 2020 in |
Penetrating biomolecules by ultrasonic techniques is an innovative and influential tool for characterizing their physicochemical properties. Peptides have been used as extensive applications in drug construction and as an ingredient in nutritional complements. An investigation based on the behavior of promulgation of ultrasonic waves in solids and the liquid system is now rather well recognized as an effective means for scrutinizing certain physical properties of the materials. The data attained from ultrasonic proliferation parameters such as ultrasonic velocity, density, viscosity, etc., and additional variation with concentration of one of the medium modules are useful in consideration of the nature of molecular interaction in terms of physical parameters. Owing to the sensitivity to very low populace densities at high energy circumstances, ultrasonic methods have been preferred and are testified to be corresponding to other techniques. An exhaustive study of literature exposes that the ternary solutions and liquid mixtures were premeditated and reported by different inventors. They testified on the nature of forces elaborate in the formation of the hydrogen bonds....
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Posted by admin on Nov 30, 2020 in |
The aim of this study was to screen the presence of bioactive compounds through GC-MS analysis and carry out the ant-inflammatory test of the methanolic tissue extract of Murex tribulus, a spiny predatory gastropod that is widespread from the Central Indian Ocean to Western Pacific Ocean. The GC-MS analysis of the methanolic flesh extract revealed the presence of four bioactive compounds, 1, 2 dimethyl hydrazine, urea, cis-9 hexadecenoic acid, and 1, 1, 1, 3, 5, 5, 5 hepta-methyltrisiloxane. Among the compounds identified, 1, 1, 1, 3, 5, 5, 5-Heptamethyltrisiloxane was the most abundant antimicrobial compound (92.87%) present in the methanolic tissue extract of M. tribulus. The results of the GC-MS analysis showed that the bioactive compounds present in the tissue extract showed anti-inflammatory responses. Hence in-vitro anti-inflammatory activity in the tissue extract of M. tribulus was determined by proteinase inhibitory activity and 5-lipooxygenase inhibitory assay. The anti-inflammatory test showed promising results with high percentage of inhibition such as 53.50% at a concentration of 1000 µg/ml in proteinase inhibitory activity...
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Posted by admin on Nov 30, 2020 in |
Portulaca oleracea belonging to the family Portulacaceae has a wide occurrence throughout the World. It has numerous nutritional and medicinal benefits to humans because it is a good source of many minerals, vitamins, fatty acids, alkaloids, flavonoids, aspartic acid, coumarins, glutathione, etc. It is used in the traditional system of medicine in many countries like India, Nigeria, Palestine, China, Iran etc. for the treatment of various ailments like edema, ulcers, indigestion, repro-ductive system disorders, etc. The present review focuses on pharmacological activities of P. oleracea like anti-inflammatory, anti-diabetic, protective effect on the reproductive system, hepatoprotective, and antimicrobial effects. The analysis of recent researches on the above aspects will further, validate the use of P. oleracea as a medicinal...
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