scholarly journals COMPARATIVE ANALYSIS OF QUALITATIVE AND QUANTITATIVE COMPOSITION IN FLAVONOIDS PHYSCIA STELLARIS (L.) NYL WHO GREW UP IN PLACES OF DIFFERENT ANTHROPOGENIC LOAD

2017 ◽  
pp. 153-158
Author(s):  
Рашит (Rashit) Габдулхаевич (Gabdulhaevich) Фархутдинов (Farkhutdinov) ◽  
Аркадий (Arkadij) Владимирович (Vladimirovich) Щербаков (Shcherbakov) ◽  
Зиля (Zilja) Равиловна (Ravilovna) Саитова (Saitova)
Keyword(s):  
Comparative Analysis ◽  
Secondary Metabolites ◽  
Antioxidant Status ◽  
Growth Response ◽  
Anthropogenic Load ◽  
Quantitative Composition ◽  
Flavonoid Content ◽  
Qualitative And Quantitative ◽  
Phenolic Substances ◽  
Different Levels

The studies was defined qualitative and quantitative composition of flavonoids in lichen species Physcia stellaris (L.) Nyl., Collected in habitats with different levels of anthropogenic load. Changes in the composition of flavonoids is considered in the literature as an indicator of the direction of the synthesis of secondary metabolites by plants to protect against adverse environmental influences. It was found that the most diverse number of members (128 compounds), phenolic substances found in the least contaminated RB Ishimbai area and the fewest (58 compounds) was detected in Sterlitamak. Analysis of qualitative and quantitative composition of flavonoids showed that in the area of Ishimbaisky samples were found to accumulate naringin, dihydroquercetin, quercetin. The samples obtained in Alsheyevsky District noted in content highs routine, but samples Sterlitamak – fizetina and naringenin. The calculation of the potential antioxidant status showed that the samples of Ishimbaisky district formed the highest level of protection phenolic substances. It showed no direct correlation between the growth response to environmental pollution and the level of flavonoid content in the thallus of lichens.

scholarly journals COMPARATIVE ANALYSIS OF QUALITATIVE AND QUANTITATIVE COMPOSITION OF DIFFERENT KINDS OF CINNAMON BARK (CINNAMOMUM)

2018 ◽  
pp. 159-167
Author(s):  
Юлия (Yuliya) Борисовна (Borisovna) Аксенова (Aksenova) ◽  
Ирина (Irina) Викторовна (Viktorovna) Лапко (Lapko) ◽  
Ольга (Ol'ga) Витальевна (Vital'evna) Кузнецова (Kuznetsova) ◽  
Сергей (Sergej) Валерьевич (Valer'evich) Василевский (Vasilevskiy) ◽  
Алексей (Аleksej) Вадимович (Vadimovich) Аксенов (Aksenov) ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Linolenic Acid ◽  
Quantitative Composition ◽  
Species Differentiation ◽  
Cinnamomum Zeylanicum ◽  
Cinnamic Aldehyde ◽  
Cinnamon Bark ◽  
Cinnamomum Cassia ◽  
Qualitative And Quantitative ◽  
Cinnamomum Burmannii

The qualitative and quantitative composition of four types of cinnamon bark (Cinnamomum) was studied by gas chromatography with mass spectrometric detection.Found in these samples were 72 compounds of various classes, including terpenes, aldehydes, alcohols, organic acids, coumarins, esters, catechins, vitamins, sterols, and sugars. As a result of the comparative analysis, the specific compounds were found that are characteristic for Cinnamomum zeylanicum (3-tuyen, 4 (10) -tuyen, eugenol, (-)-α-curcumen, linolenic acid and for a group of Cinnamomum burmannii, Cinnamomum loureiroi and Cinnamomum Cassia, namely, sativene, isosativene, longicyclene, β-elemen, γ-mourolen, α-mourolen, α-calacorene, syrinaldehyde, and syringol. The presence of common compounds with certain concentration variability was revealed for all four types of cinnamon. The selection of the most informative compounds allowing species differentiation of the cinnamon bark has been carried out by the method of main components. Among these, four components (eugenol, α-mourolen, syrinaldehyde and linolenic acid) and specific and 12 components, such as cinnamic aldehyde, α-fellandrene, limonene, linalool, copaene, caryophyllene, coumarin, benzyl benzoate, cinnamic acid, palmitic acid, linoleic acid, and disaccharides, have common origin. Further research will be directed toward establishing the criteria that would allow species differentiation of the cinnamon bark of Cinnamomum zeylanicum, Cinnamomum burmannii, Cinnamomum loureiroi and Cinnamomum Cassia types.

scholarly journals COPMONENT COMPOSITION OF ROOT IN TWO SPECIES OPLOPANAX (ARALIACEAE)

2019 ◽  
pp. 233-242
Author(s):  
Yelizaveta Sergeyevna Zhestovskaya ◽  
Sergey Valer'yevich Vasilevskiy ◽  
Aleksey Vadimovich Aksenov ◽  
Viktor Fedorovich Taranchenko ◽  
Andrey Nikolayevich Stavrianidi ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Comparative Analysis ◽  
Polar Compounds ◽  
Mass Spectrometric ◽  
Raw Material ◽  
Quantitative Composition ◽  
Root Extracts ◽  
Qualitative And Quantitative ◽  
Trimethylsilyl Derivatives ◽  
Chromatographic Peaks

The qualitative and quantitative composition of two species of Oplopanax root was studied by gas chromatography with mass spectrometric detection. Extraction of components from the investigated objects was carried out by extraction of dry ground raw material with 70% ethanol. For the analysis of polar compounds, the extracts were further derivatized to give the corresponding trimethylsilyl derivatives. Identification of components was carried out using commercial (NIST17, Wiley14) and own custom mass-spectrometer libraries. The percentage of components found was calculated using the areas of the corresponding chromatographic peaks. Found in these samples were 130 compounds of various classes: terpenes and their derivatives, alcohols, aldehydes, polyyns, polyenes, various acids and their derivatives, phenols, sterols, lignans, vitamins, nucleosides, glycosides and sugars. It has been established that the qualitative and quantitative composition of root extracts varies even within the same species. The presence of 26 compounds common to the two species of Oplopanax, including 12 acids, 3 polyyns, 6 terpenes and one representative each from the class polyenes, aldehydes, lignans, glycosides and sterols, was revealed. As a result of the comparative analysis, it was established that 4 compounds from the class of polyyns (falcarindiol acetate, oplopanediol acetate, oplopantriol A and oplopantriol B) are found only in the roots of O. horridus.

Study on Camera Pose Estimation

2014 ◽  
Vol 631-632 ◽  
pp. 462-469
Author(s):  
Xiao Zhou Zhu ◽  
Xiao Qian Chen ◽  
Xin Song
Keyword(s):  
Computer Vision ◽  
Comparative Analysis ◽  
Iterative Method ◽  
Pose Estimation ◽  
Camera Pose Estimation ◽  
Qualitative And Quantitative ◽  
Camera Pose ◽  
Linear Transform ◽  
Direct Linear Transform ◽  
Different Levels

A common need in photogrammetry, robotics and computer vision is performing camera pose estimation. A comparative analysis is presented here for three classical and representative algorithms, including direct linear transform (DLT), EPNP and Cayley method, each of which computes the translation and rotation matrix using non-iterative method with six or more point correspondences. The comparison shows qualitative and quantitative experimental results to determine (1) the accuracy and robustness under the influence of different levels of noise, (2) the accuracy, robustness and efficiency for different sizes of point correspondences.

scholarly journals Properties of Polyphenols and Xylooligosaccharides Obtained Biotechnologically from Processed Millets

2021 ◽  
pp. 538-548
Author(s):  
Damir Zyaynitdinov ◽  
Alexandr Evteev ◽  
Anna Bannikova
Keyword(s):  
Ferulic Acid ◽  
Fractional Composition ◽  
Monosaccharide Composition ◽  
Polyphenolic Compounds ◽  
Biologically Active ◽  
Quantitative Composition ◽  
Qualitative And Quantitative ◽  
Phenolic Substances ◽  
Reducing Substances ◽  
Excellent Source

Introduction. Thousands of tons of millet grain are processed annually in the world. Husk is the main waste of millet processing and can produce biologically valuable components. The present research offers a new biotechnology for the production of biologically active substances (BAS), namely polyphenols and xylooligosaccharides (XOS), from millet husk. Study objects and methods. Millet husk was tested for the mass fraction of protein, moisture, starch, fiber, and reducing substances, as well as for antiradical activity, qualitative and quantitative composition of phenolic substances, fractional composition of carbohydrates, monosaccharide composition of polysaccharides, qualitative and quantitative compositions of XOS concentrates. Results and discussion. The obtained BAS concentrates contained 0.90% of protein and 91.50% of carbohydrates, including 68.50% of XOS with prebiotic properties and 6.30% of ash. The concentrate of polyphenols was represented to a greater extent by ferulic acid (33.47%) with antioxidant activity up to 74.0%. The process of enzymatic hydrolysis demonstrated a significant change in the fractional composition of the extracted oxycinnamic acids, which make up the polyphenolic compounds of millet husk. In the polyphenol concentrate, the yield of ferulic acid increased by 19%, and that of gallic acid – by 2.5%, whereas the yield of chlorogenic acid decreased by 13%. The XOS concentrate mainly consisted of XOS fragments with prebiotic properties – up to 78% in absolutely dry matter. The fractional composition of the XOS concentrate revealed the presence of di-, tri-, tetra-, and pentaxylo-oligosaccharides. Xylotriose and xylotetrose prevailed in the KOS concentrates: 15.83 and 16.23%, respectively. The waste of enzymatic husk processing proved to be a concentrate of valuable dietary fiber that can be used as an independent product in the technologies of balanced and dietary nutrition. Conclusion. Millet husk is an excellent source of polyphenolic compounds with antioxidant and prebiotic properties and can be used in functional food production.

scholarly journals Composition of Suspended Micro-particles in the Air of Khabarovsk

10.12737/314 ◽  
2013 ◽  
Vol 2 (2) ◽  
pp. 10-14 ◽  
Author(s):  
Голохваст ◽  
Kirill Golokhvast ◽  
Алейникова ◽  
E. Aleynikova
Keyword(s):  
Airborne Particles ◽  
Anthropogenic Load ◽  
Quantitative Composition ◽  
Scanning Electronic Microscopy ◽  
Electronic Microscopy ◽  
Research Results ◽  
Qualitative And Quantitative ◽  
Micro Particles ◽  
The City

The research results of nano- and micro-particles of atmospheric suspensions contained in the snow of Khabarovsk during the winter of 2011/2012 are presented in this paper. The use of laser granulometry and scanning electronic microscopy for researching of qualitative and quantitative composition of precipitation suspensions is shown. The distribution of airborne particles with different sizes is revealed in the city parts distinguished by anthropogenic load.

scholarly journals Methods for the determination of flavonoids in plant raw materials and products of their processing

2020 ◽  
Author(s):  
N.V. Alpatova ◽  
◽  
I.A. Dubrovskaya ◽  
M.V. Slobodyanik ◽  
◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Comparative Analysis ◽  
Literature Review ◽  
Raw Materials ◽  
Biologically Active ◽  
Quantitative Composition ◽  
Plant Materials ◽  
Qualitative And Quantitative ◽  
Plant Raw Materials

Flavonoids are an important component of plant materials; they have medicinal and biologically active properties. To use them as medicines, it is necessary to determine their qualitative and quantitative composition. The aim of this work is a comparative analysis of the identification and metrological characteristics of methods for the determination of flavonoids in plant raw materials and products of their processing. The paper presents a brief literature review of the main methods for the study of flavonoids. Certified and advanced techniques, such as NMR and mass spectrometry, have been discussed.

«The Forties, Fateful…» in David Samoylov’s Poetry: a Lingvo-stylistic Analysis of Three Poems about War (To the 100th Anniversary of the Birth)

2020 ◽  
Vol 81 (3) ◽  
pp. 63-69
Author(s):  
E. A. Frolova
Keyword(s):  
Comparative Analysis ◽  
20Th Century ◽  
100Th Anniversary ◽  
Stylistic Analysis ◽  
Creative Work ◽  
Creative Activity ◽  
War Poetry ◽  
Artistic Manner ◽  
Different Levels ◽  
Linguistic Means

The article presents an analysis of three poems about war («The Tale of Our Lady and Russian Soldiers» («Slovo o Bogoroditse i Russkih Soldatah»), «The Attack» («Ataka»), «The Forties» («Sorokovye»)) written by D. Samoylov in different periods of his creative activity. On the basis of the existing research of the creative work of the famous poet of the 20th century, a multilevel characteristic of his war lyrics is given. The aim of the article is to characterize the specific features of the poetic language of such an original author by means of a lingvo-stylistic analysis of D. Samoilov’s poems, to reveal the richness and diversity of his artistic manner. The following research methods were used: analytical reading, comparative analysis, ontological method, a multilevel analysis of poetry. The author accentuates reminiscences in D. Samoilov’s war poetry, the contrast and contrast means, repetition as an artistic device, paronomasia in the stylistic mixture of linguistic means belonging to different levels. A multidimensional poet’s approach to the theme of the war is the conclusion of the article.

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