scholarly journals Estudio químico de la especie colombiana pentacalia abietina como nueva fuente natural de compuestos de tipo kaurano y quinol

2015 ◽  
Vol 1 (1) ◽  
pp. 81
Author(s):  
Iván Fernando Santana Alba ◽  
Diana Angélica Varela Martínez
Keyword(s):  
Secondary Metabolites ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Para Determinar ◽  
Active Substances

ONTARE. REVISTA DE INVESTIGACIÓN DE LA FACULTAD DE INGENIERÍAInvestigaciones recientes indican que en distintas especies del género Pentacalia se han aislado e identificado sustancias esteroidales como el sitosterol y el β-sitosterol, cumarinas como la escopoletina y la geranilescopoletina, kauranos y kauranoides, quinoles como la jacaranona y la metiljacaranona y glicósidos de flavonoides entre otras, con actividades biológicas antifúngicas, antibacteriales, cardiotónicas, anticancerígenas etc, para síntesis en la industria farmacéutica, farmacológica y cosmética. En el presente trabajo se llevó a cabo el estudio de la especie colombiana Pentacalia abietina (Willd. ex. Wedd) Cuatrec., para determinar metabolitos secundarios; se fundamentó en encontrar una nueva fuente de sustancias con actividad biológica del tipo kaurano y quinol, a las que se les ha podido comprobar acción antibacterial, antiparasitaria, antiinflamatoria, antitumoral y antifúngica y cuyas estructuras son de gran interés para síntesis en la industria farmacéutica, farmacológica y cosmética. ABSTRACT In the present work was undertaken to study the Colombian species Pentacalia abietina (\MI/d. ex. Wedq) Cuatrec. determining secondary metabolites, and was based on finding a new source of biologically active substances of type quino/ kaurano and contributing to the achievement of these important substances with bio/cgical action, which are antibacteria/ action has been found, antiparasitic, antiinflammatory, antifungal and antitumor and whose structures are of great interest for synthesis in the pharmaceutica/ industry, drug and cosmetic industries.

Pigments of Australasian Dermocybe Toadstools

1995 ◽  
Vol 48 (1) ◽  
pp. 1 ◽  
Author(s):  
M Gill
Keyword(s):  
Secondary Metabolites ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Fungal Flora ◽  
Points Of View ◽  
Active Substances

A number of new secondary metabolites, mostly pigments, which have been isolated from indigenous Australasian toadstools belonging to the genus Dermocybe, are described and discussed from structural, stereochemical and biosynthetic points of view. The potential for the discovery of new biologically active substances in the native fungal flora is demonstrated and a plea for greater taxonomic involvement is expressed.

Microscopic fungi of lithobiont communities of Argentine Islands Region: Data from the 22nd Ukrainian Antarctic Expedition

2020 ◽  
Vol 62 (1-2) ◽  
pp. 49-68
Author(s):  
T. O. Kondratiuk ◽  
T. V. Beregova ◽  
I. Yu. Parnikoza ◽  
S. Y. Kondratyuk ◽  
A. Thell
Keyword(s):  
Filamentous Fungi ◽  
Mucor Circinelloides ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Microscopic Fungi ◽  
Rhodotorula Rubra ◽  
Yeast Fungi ◽  
Antarctic Expedition ◽  
Geomyces Pannorum ◽  
Active Substances

The identification of the diversity of microscopic fungi of lithobiont communities of the Argentine Islands in specimens collected during the 22nd Ukrainian Antarctic Expedition was the purpose of this work. Samples of rock, soil, mosses and lichens of rock micro-habitats of “Crustose lichen sub-formation and fruticose lichen and moss cushion sub-formation” were used in the work. These samples were used for extracting and cultivation of filamentous fungi on dense nutrient media. Determination of physiological and biochemical characteristics and identification of yeast-like fungi were performed using a microbiological analyser ‘Vitek-2’ (‘Bio Merieux’, France). Cultivation of microorganisms was carried out at temperatures from +2 to +37 °C. In results cultures of microscopic fungi of Zygomycota (Mucor circinelloides), Ascomycota (species of the genera cf. Tlielebolus, Talaromyces), representatives of the Anamorphic fungi group (Geomyces pannorum, species of the genera Alternaria, Acremonium, Aspergillus, Penicillium, and Cladosporium) were isolated from Antarctic samples. Microscopic fungi Penicillium spp. were dominated after the frequency in the studied samples (54.5%). Rhodotorula rubra and Candida sp. among isolated yeast fungi, and dark pigmented fungi represented by Aureobasidium pulhdans and Exophiala spp. were identified. The biological properties of a number of isolated fungi (the potential ability to synthesise important biologically active substances: melanins, carotenoids, lipids) are characterised. Mycobiota of rock communities of Argentine Islands is rich on filamentous and yeast fungi similarly to other regions of Antarctica. A number of fungi investigated are potentially able to synthesise biologically active substances. The dark pigmented species of the genera Cladosporium, Exophiala, Aureobasidium pulhdans, capable of melanin synthesis; ‘red’ yeast Rhodotorula rubra (carotenoid producers and resistant to toxic metals); Mucor circinelloides and Geomyces pannorum, lipid producers, are among these fungi. Yeast-like fungi assimilated a wide range of carbohydrates, which will allow them to be further used for cultivation in laboratory and process conditions. The collection of technologically promising strains of microorganisms, part of the Culture Collection of Fungi at Taras Shevchenko National University of Kyiv (Ukraine), is updated with isolated species (strains) of filamentous fungi and yeast – potential producers of biologically active substances, obtained within this study.

The content of decenoic acids in drone brood preparations and combined preparations based on it

Biomics ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 389-393
Author(s):  
D.V. Mitrofanov ◽  
N.V. Budnikova
Keyword(s):  
Royal Jelly ◽  
Storage Conditions ◽  
Water Soluble ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Strict Adherence ◽  
Drone Brood ◽  
Wide Range ◽  
Active Substances ◽  
Melanin Complex

The drone brood contains a large number of substances with antioxidant activity. These substances require stabilization and strict adherence to storage conditions. Among these substances are unique decenoic acids, the content of which is an indicator of the quality of drone brood and products based on it. The ability of drone brood to reduce the manifestations of oxidative stress is shown. There are dietary supplements for food and drugs based on drone brood, which are used for a wide range of diseases. Together with drone brood, chitosan-containing products, propolis, royal jelly can be used. They enrich the composition with their own biologically active substances and affect the preservation of the biologically active substances of the drone brood. Promising are the products containing, in addition to the drone brood, a chitin-chitosan-melanin complex from bees, propolis, royal jelly. The chitin-chitosan-melanin complex in the amount of 5% in the composition of the adsorbent practically does not affect the preservation of decenic acids, while in the amount of 2% and 10% it somewhat worsens. The acid-soluble and water-soluble chitosan of marine crustaceans significantly worsens the preservation of decenoic acids in the product. Drone brood with royal jelly demonstrates a rather high content of decenoic acids. When propolis is introduced into the composition of the product, the content of decenoic acids increases according to the content of propolis.

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