scholarly journals Analytical Methods of Isolation and Identification

2020 ◽  
Author(s):  
Weisheng Feng ◽  
Meng Li ◽  
Zhiyou Hao ◽  
Jingke Zhang
Keyword(s):  
Analytical Methods ◽  
Isolation And Identification ◽  
Methods Of Isolation

Isolierung und Identifizierung von Sterinen im Metabolismus des Pilzes Botrytis cinerea / Isolation and identification of sterols in the metabolism of the fungus botrytis cinerea

1983 ◽  
Vol 38 (3-4) ◽  
pp. 207-211 ◽  
Author(s):  
Peter Flesch ◽  
Lutz Gwinner ◽  
Sylvia Müller ◽  
Peter Simon
Keyword(s):  
Mass Spectrometry ◽  
Botrytis Cinerea ◽  
Analytical Methods ◽  
Sterol Composition ◽  
Isolation And Identification

The fungus Botrytis cinerea, which belongs to the class of ascomycetes, has been analysed for its sterol composition. It is able to produce ergosterol, cerevisterol, lanosterol/dihydrolanosterol and cholesterol besides β-sitosterol. The identification of the sterols is carried out with different analytical methods including mass spectrometry. In the extracts of the mycelium also squalene has been identified

scholarly journals THE CULTIVATION OF ANAEROBIC TREPONEMATA ON THE SURFACE OF BLOOD AGAR PLATES

1923 ◽  
Vol 37 (3) ◽  
pp. 311-317 ◽  
Author(s):  
Frederick L. Gates
Keyword(s):  
Colony Formation ◽  
Treponema Pallidum ◽  
Blood Agar ◽  
Characteristic Surface ◽  
Isolation And Identification ◽  
New Methods ◽  
Foreign Proteins ◽  
Methods Of Isolation ◽  
The Way

By a method of cultivation that proved successful with Bacterium pneumosintes, characteristic surface colonies of old saprophytic strains of Treponema pallidum and Treponema calligyrum have been obtained. The presence of two types of colony in the pallidum cultures requires explanation, but the fact of colony formation may point the way to new methods of isolation and identification and to the utilization of suspensions of treponemata, free from foreign proteins, for serological and immunological purposes.

Methods of isolation and identification of volatile compounds in lipids

1967 ◽  
Vol 44 (1) ◽  
pp. 26-29 ◽  
Author(s):  
Pio Angelini ◽  
D. A. Forss ◽  
M. L. Bazinet ◽  
Charles Merritt
Keyword(s):  
Volatile Compounds ◽  
Isolation And Identification ◽  
Methods Of Isolation

Erratum to: Methods of isolation and identification of volatile compounds in lipids

1967 ◽  
Vol 44 (4) ◽  
pp. 274-274
Author(s):  
Pio Angelini ◽  
D. A. Forss ◽  
M. L. Bazinet ◽  
Charles Merritt
Keyword(s):  
Volatile Compounds ◽  
Isolation And Identification ◽  
Methods Of Isolation

scholarly journals Cannabinoids, Phenolics, Terpenes and Alkaloids of Cannabis

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2774
Author(s):  
Mohamed M. Radwan ◽  
Suman Chandra ◽  
Shahbaz Gul ◽  
Mahmoud A. ElSohly
Keyword(s):  
Phenolic Compounds ◽  
Medicinal Plants ◽  
Secondary Metabolites ◽  
Cannabis Sativa ◽  
Complex Mixture ◽  
Isolation And Identification ◽  
Early 19Th Century ◽  
Chemical Structures ◽  
The World ◽  
Methods Of Isolation

Cannabis sativa is one of the oldest medicinal plants in the world. It was introduced into western medicine during the early 19th century. It contains a complex mixture of secondary metabolites, including cannabinoids and non-cannabinoid-type constituents. More than 500 compounds have been reported from C. sativa, of which 125 cannabinoids have been isolated and/or identified as cannabinoids. Cannabinoids are C21 terpeno-phenolic compounds specific to Cannabis. The non-cannabinoid constituents include: non-cannabinoid phenols, flavonoids, terpenes, alkaloids and others. This review discusses the chemistry of the cannabinoids and major non-cannabinoid constituents (terpenes, non-cannabinoid phenolics, and alkaloids) with special emphasis on their chemical structures, methods of isolation, and identification.

scholarly journals ANTIBIOTIC RESISTANCE OF THE NASOPHARYNX MICROBIOTA IN PATIENTS WITH INFLAMMATORY PROCESSES

2020 ◽  
Vol 73 (7) ◽  
pp. 1415-1419
Author(s):  
Tetiana V. Ivakhniuk ◽  
Viktoriia M. Holubnycha ◽  
Vladyslav A. Smiianov ◽  
Lesia A. Rudenko ◽  
Yevgen V. Smiianov
Keyword(s):  
Antibiotic Resistance ◽  
Test Material ◽  
Isolation And Identification ◽  
Medical Institutions ◽  
Mucous Membranes ◽  
Different Types ◽  
Inflammatory Processes ◽  
Gram Positive Cocci ◽  
Nose And Throat ◽  
Methods Of Isolation

The aim: To study the species composition of microorganisms isolated from patients with inflammatory processes of different localization and to monitor the sensitivity of isolated microorganisms to the most commonly used antibiotics. Materials and methods: During 2017–2019, we examined 517 patients with acute inflammatory processes of the nasopharynx. To establish the etiological structure of pathogens of inflammatory processes, a microbiological study of nasopharyngeal washes was carried out using classical methods of isolation and identification of microorganisms. The sampling of the test material from patients was performed during the first visit to a doctor, before the appointment and implementation of etiopathogenetic therapy. To study the sensitivity of isolated microorganisms to antibacterial drugs, we used the method of paper disks (manufactured by “Pharmaktiv” Ltd. (Kyiv, Ukraine) and Himedia (India). Results and conclusions: The microflora of the mucous membranes of the nose and throat in patients with acute inflammatory processes of the nasopharynx is represented mainly by monoisolates of staphylococci and streptococci. The sensitivity of isolated microorganisms to antibiotics varied between different types of microorganisms and between different antibiotics. Cefazolin showed efficacy against all types of microorganisms. K. pneumonia strains showed the highest antibiotic resistance. Among the gram-positive cocci, 18 strains (4.2%) resistant to all antibiotics were isolated, which can be regarded as the circulation of hospital strains outside the medical institutions.

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