Phenolic compounds of Bistorta alopecuroides (Turcz. ex Meissn.) Kom. (Polygonaceae) from different populations of Siberia and the Far East

The article considers research of the phenolic compounds composition and content in leaves of Bistorta alopecuroides (Turcz. Ex Meissn.) Kom. from different populations using HPLC methods. It shows that B. alopecuroides component composition is quite variable and depends on many environmental factors, such as microclimate, altitude, technogenic pollution. Isovitixin, rutin and flavonolglycoside (tR = 9.2 min; UV 273, 355 nm) compounds are found in B. alopecuroides leaves of all studied populations. B. alopecuroides growing in high mountains and under technogenic pollution conditions have the highest content of phenolic compounds, which confirms their adaptive role in plant metabolism. The total content of phenolic compounds in leaves of B. alopecuroides plants reaches 20.82mg/g.

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Phenolic compounds of Bassia prostrata (Chenopodiaceae)

BIO Web of Conferences ◽

10.1051/bioconf/20213800097 ◽

2021 ◽

Vol 38 ◽

pp. 00097

Author(s):

Anastasia Petruk ◽

Tatyana Pankova ◽

Bektemir Osmonali ◽

Maria Lomonosova

Keyword(s):

High Performance Liquid Chromatography ◽

Phenolic Compounds ◽

High Performance ◽

Component Composition ◽

Qualitative And Quantitative ◽

Quantitative Content ◽

Novosibirsk Region ◽

Polymorphic Species ◽

Double Extraction ◽

Different Populations

The composition and content of phenolic compounds in plants of the polymorphic species Bassia prostrata (Chenopodiaceae) from geographically distant populations were studied by high-performance liquid chromatography. The material for the study was the aboveground part of the plant. The plants were collected in the flowering phase in Russia (Novosibirsk region, Republic of Tyva, Khakassia, Buryatia, Altai), Kazakhstan, Armenia. The phenolic compounds were extracted by double extraction with 70% ethanol. Component composition of the phenolic complex was investigated by Agilent 1200 chromatograph. Eleven phenolic compounds, including isoquercitrin, kaempferol-3-glycoside, isoramnetin-3-rutinoside, and luteolin were found in the composition. The quantitative content of each compound could vary from 0.1 to 10.8 mg/g in different populations. Chemotypes were determined for the qualitative and quantitative content of phenolic compounds

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Comparative analysis of the composition and content of phenolic compounds in fruits of wild species of Malus native to eastern Siberia and the Far East

Scientia Horticulturae ◽

10.1016/j.scienta.2021.110432 ◽

2021 ◽

Vol 289 ◽

pp. 110432

Author(s):

E.G. Rudikovskaya ◽

L.V. Dudareva ◽

Z.O. Stavitskaya ◽

N.B. Katysheva ◽

A.V. Rudikovskii ◽

...

Keyword(s):

Comparative Analysis ◽

Phenolic Compounds ◽

Wild Species ◽

Far East ◽

Eastern Siberia ◽

The Far East

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COMPONENT COMPOSITION OF PHENOLIC COMPOUNDS AND TERPENOIDS OF THE ANGIOPROTECTIVE HERBAL COMPOSITION

chemistry of plant raw material ◽

10.14258/jcprm.2021049412 ◽

2021 ◽

pp. 145-155

Author(s):

Vera Mikhaylovna Mirovich ◽

Alina Alekseyevna Posokhina ◽

Svetlana Andreyevna Petukhova ◽

Daniil Nikolayevich Olennikov ◽

Lyubov' Vissarionovna Dudareva

Keyword(s):

Phenolic Compounds ◽

Essential Oil ◽

Total Content ◽

Component Composition ◽

Retention Indices ◽

Gas Chromatography Mass Spectrometry ◽

Triterpene Saponins ◽

Phenolcarboxylic Acid ◽

Linear Retention Indices ◽

Beijing China

The study of the component composition of phenolic and terpenoid compounds of the angioprotective herbal composition was carried out. Alcohol extraction of the angioprotective herbal composition was studied by MC-HPLC-UV method. The analysis used solutions of commercial samples of reference substances manufactured by Sigma-Aldrich (USA), Chem-Fages, Extrasynthese, Lione (France), Beijing (China). Seven phenolic compounds have been identified: quercetin, isoramnetin, rutin, isoquercitrin, narcissin, isoramnetin-3-O-glucoside, phenolcarboxylic acid 5-O-caffeylquinic. The total content of flavonoids is 11.64 mg/g, phenolcarboxylic acid – 2.30 mg/g. Among the isolated flavonoids rutin (3.35±0.06 mg/g), isoquercitrin (3.14±0.06 mg/g), narcissin (4.15±0.09 mg/g), phenolcarboxylic acid – 5-O-caffeylquinic (2.30±0.05 mg/g) prevail. The essential oil was obtained by hydrodistillation; analysis was performed by gas chromatography-mass spectrometry on an Agilent Technologies (6890N) instrument with a quadrupole mass spectrometer. The identified components were performed by comparing the linear retention indices and total mass spectra of the compounds with the data from the Nist 11 library and commercial samples. In the herbal composition of the essential oil, 21 components have been identified, the main of which are salicylic aldehyde (in the total amount is 58.30%), methyl salicylate (16.17%). The triterpene saponins of the angioprotective herbal composition are represented by calendulosides A and B, escin. The amount of triterpene saponins is 1.08±0.05%. The results of the quantitative analysis were processed statistically, the data are presented as the mean and ± standard deviation, SD.

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Military Service and Adventures in the Far East

10.1017/cbo9781139178747 ◽

2009 ◽

Author(s):

Daniel Henry Mackinnon

Keyword(s):

Military Service ◽

Far East ◽

The Far East

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Is there a regional culture in Russia? Opportunities of using a sociocultural approach in economics

Voprosy Ekonomiki ◽

10.32609/0042-8736-2020-7-108-126 ◽

2020 ◽

pp. 108-126 ◽

Cited By ~ 1

Author(s):

V. A. Bryzgalin ◽

Е. N. Nikishina

Keyword(s):

Far East ◽

Cross Cultural ◽

Regional Culture ◽

Russian Regions ◽

Geographical Patterns ◽

Cross Cultural Differences ◽

The Far East ◽

Sociocultural Approach ◽

Critical Issues ◽

Russian Universities

The paper investigates cross-cultural differences across Russian regions using the methodology of G. Hofstede. First, it discusses the most common approaches in measuring culture and the application of the Hofstede methodology in subnational studies. It identifies the critical issues in measuring culture at the regional level and suggests several strategies to address them. Secondly, the paper introduces subregional data on individualism and uncertainty avoidance using a survey of students across 27 Russian universities. The data allow to establish geographical patterns of individualism in Russia. It is demonstrated that collectivism is most prevalent in the Volga region, while individualism characteristic becomes stronger towards the Far East. The findings are robust to the inclusion of various controls and different specifications of the regression model. Finally, the paper provides a discussion about the potential of applying the sociocultural approach in economics.

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