STUDY OF THE COMPOSITION AND PROPERTIES OF SECONDARY METABOLITES OF THE LICHEN USNEA BARBATA

In the modern society value of many biological resources remains underestimated. Lichens are one of the unique poorly studied bioresources. These are amazing organisms, formed by symbiosis of algae and fungus. Due to this combination, lichens have a number of unique properties.In this article the re...

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Bibliographic Details
Published in:chemistry of plant raw material
Main Authors: Лыскова (Lyskova), Надежда (Nadezhda) Сергеевна (Sergeevna), Базарнова (Bazarnova), Юлия (Iuliia) Генриховна (Genrikhovna), Кручина-Богданов (Kruchina-Bogdanov ), Игорь (Igor') Вадимович (Vadimovic)
Format: Article in Journal/Newspaper
Language:Russian
Published: Altai State University 2017
Subjects:
lichen substances of Usnea barbata
biologically active secondary metabolites
usnic acid
extraction
antioxidant activity
лишайниковые вещества
Usnea barbata
биологически активные вторичные метаболиты
усниновая кислота
экстракция
антиоксидантная активность
Архангельск*
Online Access:http://journal.asu.ru/cw/article/view/1966
https://doi.org/10.14258/jcprm.2018011966
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Summary:In the modern society value of many biological resources remains underestimated. Lichens are one of the unique poorly studied bioresources. These are amazing organisms, formed by symbiosis of algae and fungus. Due to this combination, lichens have a number of unique properties.In this article the results of study the composition of biologically active secondary lichen metabolites of the Usnea barbata lichen. Antioxidant activity and antimicrobial properties of dry lichen extract against bacteria Bac. Subtilis. The conditions for extraction of biologically active metabolites using solvent systems such as water, water-ethanol mixtures with ethanol content of 40 and 70%, 1,4-dioxane and a mixture of 1,4-dioxane and water (1: 1) were selected. With use of the modern analytical methods, the composition of secondary metabolites in the extracts was studied. By the method of spectroscopy in the UV and visible region of the spectrum to determine the content usnic acid, which is 16,2 (solvent - water) to 60,0 (1,4-dioxane) mg/100 ml of extract.It is shown that the dioxane extract has pronounced atioxidant properties. The active substances (in terms of usnic acid) of the dry extract of lichen Usnea barbata are able to inhibit the growth of bacteria Bac. Subtilis. В современном обществе значение многих биологических ресурсов остается недооцененным. К одним из уникальных малоизученных биоресурсов относятся лишайники. Это удивительные организмы, образованные симбиозом водоросли и гриба. Благодаря такому сочетанию лишайники обладают рядом уникальных свойств и постепенно находят применение в различных областях деятельности человека.В данной статье приведены результаты исследования состава биологически активных вторичных лишайниковых метаболитов лишайника Уснея бородатая (Usnea barbata), собранного в Архангельской области. Изучена антиоксидантная активность и противомикробные свойства сухого экстракта лишайника по отношению к бактериям Bac. Subtilis. Подобраны условия экстрагирования биологически активных метаболитов с ...

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