scholarly journals THE INFLUENCE OF SOIL-CLIMATIC CONDITIONS OF GROWTH ON THE CONTENT OF PHENOLIC COMPOUNDS IN TRIFOLIUM L. PLANTS

2020 ◽  
Vol 8 (Spl-2-AABAS) ◽  
pp. S327-S335
Author(s):  
Alexander Loenidovich Mikhailov ◽  
◽  
Olga Arnoldovna Timofeeva ◽  
UlianaAleksandrovna Ogorodnova ◽  
Nikita Sergeevich Stepanov ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Plant Growth ◽  
Growth Conditions ◽  
Climatic Conditions ◽  
Biologically Active ◽  
Plant Materials ◽  
Remarkable Effect ◽  
Raw Plant Materials ◽  
Growing Conditions ◽  
The Impact

The current study was carried out to study the effect of growing conditions on the pharmaceutically promising biologically active phenolic compounds on the meadow clover plants. The impact of the plant development site on the contemplated mixes was additionally explored. The estimation of phenolic compounds in raw plant materials was carried out with the help of a spectrophotometer and photocolorimeter. Results of the study revealed that the place of plant growth conditions have remarkable effect on the content of the phenolic compounds. Further, the most ideal conditions available for clover plant growth and higher phenolic compounds were reported from the broad-leaved forests. Furthermore, the results also suggested that the most important elements which affecting the aggregation of phenolic compounds are soil nitrogen.

scholarly journals Fast screening of some flavonoids content in raw plant materials: opportunities of 1H NMR spectroscopy

2020 ◽  
Vol 169 ◽  
pp. 02006
Author(s):  
Gennady Kalabin ◽  
Vasilii Vasil’ev ◽  
Vasilii Ivlev ◽  
Vasilii Babkin
Keyword(s):  
Nmr Spectroscopy ◽  
Plant Biomass ◽  
Raw Materials ◽  
Biologically Active ◽  
Raw Material ◽  
Standard Samples ◽  
Plant Materials ◽  
H Nmr ◽  
Fast Screening ◽  
Raw Plant Materials

Environmental monitoring and assessment of the prospects for extracting biologically active substances (BAS) from various types of plant biomass requires the development of simple and fast methods for measuring their content in raw materials. A new approach for measuring the content of various flavonoids groups in plant raw material using 1H NMR spectroscopy has been developed, which allows to characterize its resource capabilities and study the effects on their composition different environmental factors without complex sample preparation and standard samples.

scholarly journals VARIABILITY OF THE CONTENT OF FLAVONOIDS AND POLYSACCHARIDES OF BIDENS CERNUA HERB.

2020 ◽  
pp. 197-206
Author(s):  
Natal'ya Valer'yevna Karazhan
Keyword(s):  
Biologically Active Substances ◽  
Biologically Active ◽  
Plant Materials ◽  
Mass Flowering ◽  
Drying Temperature ◽  
Polysaccharide Content ◽  
Raw Plant Materials ◽  
Drying Conditions ◽  
Active Substances ◽  
Natural Drying

The aim of the research was to study the variability of the content of polysaccharides and flavonoids of Bidens cernua herb, depending on the terms of harvesting, drying conditions and place of growth on the territory of the Republic of Belarus. It was shown that the maximum polysaccharide content was observed in the phase of budding and mass flowering of the plant. Unlike polysaccharides, the content of flavonoids in the budding phase was significantly lower than in the mass flowering phase (p<0.05), which accounts for the maximum content of flavonoids, and in particular, luteolin-7-O-glucoside. The highest polysaccharide content was noted for raw plant materials undergone natural drying or at 40 and 60 °C without ventilation. An increase in the drying temperature or the use of ventilation during drying led to a significant decrease in the content of this group of biologically active substances. The content of flavonoids of Bidens cernua herb, dried at elevated temperature with ventilation, regardless of the drying temperature used, was higher than the content of this group of biologically active substances in comparison with samples of raw plant materials subjected to natural drying (p<0.05). A higher flavonoid content was also noted for Bidens cernua herb, dried without ventilation at 40 and 60 °C. The content of polysaccharides and flavonoids of Bidens cernua herb, depending on the harvesting region, varied between 35.64–90.52 mg/g and 23.11–49.86 mg/g, respectively, and was most dependent on the amount of precipitation per year region. Based on the results obtained, it is recommended to harvest Bidens cernua herb during mass flowering and to dry at 40 °C without ventilation.

scholarly journals RESEARCH OF THE EXTRACTION PROCESS AND STOCK OF PHENOLIC COMPOUNDS OF LOCALIZED WINE-TECHNICAL RED AND WHITE VARIETIES OF GRAPES

2021 ◽  
pp. 74-79
Keyword(s):  
Phenolic Compounds ◽  
Chromatographic Separation ◽  
High Performance ◽  
Total Content ◽  
Climatic Conditions ◽  
Biologically Active ◽  
Individual Identification ◽  
Active Components ◽  
Wine Production ◽  
Grape Varieties

The aim of the study was to determine the technological stock of phenolic compounds in European technical grape varieties grown in the climatic conditions of Uzbekistan, used to produce white and red wines. UV-Vis spectrophotometric method determined the total content of phenolic compounds in localized wine-technical grape varieties. Using high performance liquid chromatography (HPLC), the qualitative and quantitative content of groups and subgroups of phenolic compounds was studied, biologically active components obtained in the process of their extraction were identified, and studies were carried out to analyze the types of phenolic compounds by chromatographic separation in certain wine-technical grape varieties. Chromatographic separation, identification and qualitative analysis of phenolic compounds revealed 2 groups of phenol-carboxylic acids, 9 groups of dihydroxy acids, 7 groups of flavan-3-ol, 12 groups of flavonols and 15 groups of anthocyanins, as well as, 2 tannins. Also revealed the presence of flavonoids, which have such advantages as the individual identification of their polymer products. Studies have shown that local grape varieties have a high degree of phenolic retention. This result opens up tremendous opportunities for future scientific improvement of wine production technology

scholarly journals Evaluation of the production process of potato in a changing climate in the Eastern and Western forest-steppe

2017 ◽  
pp. 120-127
Author(s):  
S.M. Svyderska
Keyword(s):  
Climate Change ◽  
Climatic Conditions ◽  
Future Climate Change ◽  
Forest Steppe ◽  
Herbaceous Plant ◽  
Climate Change Scenarios ◽  
Perennial Herbaceous Plant ◽  
Photosynthetic Productivity ◽  
Growing Conditions ◽  
The Impact

An important element of climate change is to assess changes in agro-climatic growing conditions of crops and the impact of these changes on their performance. Agriculture is the most vulnerable sector of  Ukraine's economy to fluctuations and climate change. Given the inertial nature of agriculture and the dependence of the efficiency on the weather, now need to make timely and adequate solutions to complex problems caused by climate change. Due to the expected increase in air temperature of the Northern Hemisphere food security Ukraine will largely depend on how effectively adapting agriculture to future climate change. This includes advance assessment of the impact of the expected climate change on agro-climatic conditions for growing crops. Potatoes - perennial, herbaceous, plant, but in nature is treated as an annual plant, so that the life cycle, beginning with germination and ending with the formation of bubbles and the formation of mature tubers, is one growing season. Potato is one of the most important crops grown and diversified use in almost all parts of our country. But the main focus areas of potatoes in Polesie and Forest-steppe. We consider the relative performance of the photosynthetic productivity of potato and agro-climatic conditions for growing potatoes for the period 1986 to 2005, and expected their changes calculated by the climate change scenarios A1B and A2 for the period 2011 to 2050 in Eastern and Western Forest-Steppe. We consider the agrometeorological and agro-climatic conditions in which there may be a maximum performance of potato.

scholarly journals Photosynthetic Metabolism under Stressful Growth Conditions as a Bases for Crop Breeding and Yield Improvement

Plants ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 88 ◽  
Author(s):  
Fermín Morales ◽  
María Ancín ◽  
Dorra Fakhet ◽  
Jon González-Torralba ◽  
Angie L. Gámez ◽  
...  
Keyword(s):  
Plant Growth ◽  
Environmental Conditions ◽  
Crop Production ◽  
Photosynthetic Apparatus ◽  
Water Shortage ◽  
Growth Conditions ◽  
Co2 Assimilation ◽  
Plant Behavior ◽  
Photosynthetic Co2 Assimilation ◽  
The Impact

Increased periods of water shortage and higher temperatures, together with a reduction in nutrient availability, have been proposed as major factors that negatively impact plant development. Photosynthetic CO2 assimilation is the basis of crop production for animal and human food, and for this reason, it has been selected as a primary target for crop phenotyping/breeding studies. Within this context, knowledge of the mechanisms involved in the response and acclimation of photosynthetic CO2 assimilation to multiple changing environmental conditions (including nutrients, water availability, and rising temperature) is a matter of great concern for the understanding of plant behavior under stress conditions, and for the development of new strategies and tools for enhancing plant growth in the future. The current review aims to analyze, from a multi-perspective approach (ranging across breeding, gas exchange, genomics, etc.) the impact of changing environmental conditions on the performance of the photosynthetic apparatus and, consequently, plant growth.

scholarly journals Effect of natural and growing conditions on the contentof phenolics in potatoes with different flesh colour

2010 ◽  
Vol 56 (No. 8) ◽  
pp. 368-374 ◽  
Author(s):  
K. Hamouz ◽  
J. Lachman ◽  
K. Hejtmánková ◽  
K. Pazderů ◽  
M. Čížek ◽  
...  
Keyword(s):  
Chlorogenic Acid ◽  
Vegetation Period ◽  
Field Trials ◽  
Climatic Conditions ◽  
Mountainous Area ◽  
Mineral Fertilization ◽  
Flesh Colour ◽  
Mineral N ◽  
Growing Conditions ◽  
The Impact

In precise field trials in the Czech Republic from 2004&ndash;2008 the impact of location conditions, varieties with yellow, purple and red flesh and mineral fertilization on the content of total polyphenols (TP) and chlorogenic acid was investigated. The highest TP contents were reported at two locations with extreme climatic conditions; in those under stress due to low temperatures in the vegetation period at the mountainous area Stachy (5.89 mg TP/g DM) and those under drought stress in the warm lowland location Přerov nad Labem with light sandy soil (5.81 mg TP/g DM). The five-year experiment with the purple-fleshed Valfi variety (13.29 mg TP/g DM) reached 2.46 to 3.18 times higher content of TP in comparison with eight yellow-fleshed varieties. The yellow-fleshed Karin variety (5.39 mg TP/g DM) outperformed TP content of other yellow-fleshed varieties by 3.1 to 29.1%. In another experiment conclusive differences between the eight varieties with purple and red flesh were found; the highest TP content was detected in cv. Violette (25.9 mg TP/g DM) with the darkest purple flesh. As to the chlorogenic acid content similar relationships between varieties were found as in the case of TP. High linear correlation (r = 0.8536) was found between the content of chlorogenic acid and the content of TP. Among the treatments of mineral N, P, K and Mg fertilization, the content of TP was only affected by a treatment with a higher dose of K and Mg, causing a decrease in TP content.

scholarly journals The content of fagopyrin and polyphenols in common and tartary buckwheat sprouts

2013 ◽  
Vol 63 (4) ◽  
pp. 553-560 ◽  
Author(s):  
Samo Kreft ◽  
Damjan Janeš ◽  
Ivan Kreft
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Green Plant ◽  
Total Flavonoid ◽  
Tartary Buckwheat ◽  
Development Phase ◽  
Medicinal Products ◽  
Plant Parts ◽  
Growing Conditions ◽  
The Impact

Abstract Dried buckwheat herb is used in medicinal products whereas fresh green plant parts, especially sprouts, are consumed as a vegetable. The herb contains fagopyrins, which cause sensitivity to light after ingestion. The aim of this study was to investigate the impact of different growing conditions and the development phase on the content of fagopyrin and phenolic compounds in buckwheat sprouts. Total flavonoid and total phenol contents, fagopyrin content and antioxidant activity were determined spectrophotometrically. Fagopyrin and flavonoids were located almost exclusively in cotyledons. Based on a comparison to hypericin toxicity, the recommendable intake of buckwheat sprouts was estimated to be less than 40 g per day.

Nematicides, Starter Fertilizers, and Plant Growth Regulators Implementation into a Corn Production System

2018 ◽  
Vol 19 (3) ◽  
pp. 242-253
Author(s):  
Stephen Till ◽  
Kathy Lawrence ◽  
Patricia Donald ◽  
Drew Schrimsher
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Yield Loss ◽  
Economic Returns ◽  
Root Knot Nematode ◽  
Management Options ◽  
Corn Production ◽  
Growing Conditions ◽  
The Impact

The southern root-knot nematode, Meloidogyne incognita, is one of the most important nematode pathogens in Alabama owing to its wide host range and yield loss on major agronomic crops. Management of root-knot nematode is undervalued in corn production owing to relatively low prices for corn at the market, less obvious symptoms, and smaller yield losses compared with cotton and soybeans, plus an overall lack of management options. However, growing successive susceptible crops in root-knot nematode-infested fields only heightens the risk of future yield loss. We evaluated use of starter fertilizers and plant growth regulators with nematicides as an economically viable option to reduce the impact of M. incognita on corn. In 2 years of research, we concluded that the combination of all three inputs provided positive economic returns in only one out of four trials. In 2016, the location with the lower root-knot nematode population density saw significant advantages with these input combinations. In 2017, dramatic advantages in early plant growth were observed with a variety of combinations, but owing to unfavorable growing conditions, yield increases were not observed. We concluded that an early plant growth increase due to applications of starter fertilizers, plant growth regulators, and nematicides often did not correlate to increased yield, although the potential exists.

scholarly journals Biogas Production Experimental Research by Using Sewage Sludge Loading with Biochar Additive

2017 ◽  
Vol 9 (4) ◽  
pp. 371-375 ◽  
Author(s):  
Vitalij Kolodynskij ◽  
Pranas Baltrėnas
Keyword(s):  
Sewage Sludge ◽  
Alternative Energy ◽  
Biogas Production ◽  
Co2 Concentration ◽  
Climatic Conditions ◽  
Matter Content ◽  
Plant Materials ◽  
Alternative Energy Sources ◽  
The World ◽  
The Impact

Biogas – ecological fuel, which is assigned to alternative energy sources. It should be noted, that biogas – renewable energy source, which does not require any specific climatic conditions or geographical position of a country. This power source is available and can be successfully produced and used in all countries of the world. The main components of biogas – methane CH4 and carbon monoxide CO2. This gas is formed under anaerobic conditions, when microorganisms decompose biodegradable biomass. In biological sciences biomass means a living matter content, expressed in grams per unit area. Meanwhile, in the energy sector, the definition of biomass is limited and biomass is characterized as fuel source, produced from plant materials and organic waste (food waste, wood, sludge, manure, vegetables, etc.). Currently, to produce biogas from biomass, bioreactors are used worldwide. However, in order to increase the quality and yield of biogas, in the world practice various bioload additives are used: vegetable waste, clay minerals, and a large amount of the protein-containing waste. The goal – to evaluate the impact of biochar on biogas quality and yield using sewage sludge load. It was found, that 10% biochar additive increased average CH4 concentration of 7.9%, reduced the CO2 concentration of 3–4% and totally removed H2S from biogas.

scholarly journals Study of the phenolic compounds of the dry extract of Thymus crebrifoli ususing a combined HPLC–UV and HPLC-ESI-MS/MS method

2021 ◽  
Vol 102 (2) ◽  
pp. 18-23
Author(s):  
S.A. Ivasenko ◽  
◽  
K.K. Shakarimova ◽  
A.B. Bokayeva ◽  
A.B. Marchenko ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Wide Spectrum ◽  
Herbal Medicines ◽  
Point Of View ◽  
Endemic Plant ◽  
Plant Materials ◽  
Dry Extract ◽  
Raw Plant Materials ◽  
Double Extraction ◽  
First Time

In world practice interest in herbal medicines is noticeably increasing every year. From this point of view, plants of the ThymusL. genus of the Lamiaceaefamily are of undoubted interest. Previously we have obtained a dry extract from the aerial part of an endemic plant of the flora of Kazakhstan Thymus crebrifoliusKlokovfor the first time by double extraction of raw plant materials with 70% ethanol using ultrasound. Dry extract of Thymus crebrifoliushas a wide spectrum of antimicrobial activity, including against Helicobacter pylori, while it is not toxic, and can be used as an antimicrobial agent. The article presents the results of a study of the composition of phenolic compounds of dry extract of Thymus crebrifoliususing a combined HPLC-UV and HPLC-MS/MS method. 12 phenolic compounds have been identified and quantified in the dry extract of Thy-mus crebrifolius. Four of them are phenolic acids, and eight are flavonoids. The dominant phenolic compounds are luteolin-7-O-glucoside (109.00mg g−1),rosmarinic acid (30.98mg g−1), naringenin (24.84 mg g−1), epicat-echin (9.98mg g−1),myricetin (6.15mg g−1) and gallic acid (3.41mg g−1). The results of chromatographic analysis will be used to standardize drugs based on dry extract of Thymus crebrifolius.

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