Relevant bibliographies by topics / Para-coumaric acids

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Para-coumaric acids'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Para-coumaric acids"

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Mikhaylova, N.V., N.I. Belaya, A.V. Belyi, and V.A. Konailenko. "EFFECTS OF SUPERADDICTIVENESS OF COMPOSITIONS OF GALLIC AND PARA-COUMARIC ACIDS IN RADICAL OXIDATION REACTIONS." Вестник ДонНУ. Сер. А: Естественные науки, no. 1 (May 31, 2024): 75–84. https://doi.org/10.5281/zenodo.12532222.

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The kinetics and mechanism of the reaction of compositions of gallic and para-coumaric acids with the 2,2'-diphenyl-1-picrylhydrazyl radical in benzene were studied using photocolorimetry, NMR spectroscopy and quantum chemistry. The maximum antiradical synergistic effects were demonstrated by mixtures of gallic and para-coumaric acids in a ratio of 10 : 90 vol.%. A possible mechanism of synergy is the formation of phenolic dimers from the products of the primary transformation of phenolic acids (phenoxyl radicals), which can interact with the hydrazyl radical faster than the original
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Koster, Chris G. de, Gerard J. Niemann, and Wigger Heerma. "Fast Atom Bombardment Mass Spectrometry of Coumaric Acids." Zeitschrift für Naturforschung C 40, no. 7-8 (1985): 580–82. http://dx.doi.org/10.1515/znc-1985-7-823.

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Abstract The technique of positive fast atom bombardment mass spectrometry combined with collisional activation and metastable ion data has been shown to provide molecular mass and useful fragmentation information for discrimination between the coumaric acid isomers. In addition to the occurrence of an ortho-effect, also para and meta positions could be distinguished.
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Biela, Monika, Peter Poliak, Andrea Kleinová, Vladimír Lukeš, and Erik Klein. "ON THE THERMODYNAMICS OF ANTIOXIDANT ACTION OF NATURALLY OCCURRING HYDROXYDERIVATIVES OF CIS-CINNAMIC ACID." Journal of the Serbian Society for Computational Mechanics, Special (June 1, 2020): 26–36. http://dx.doi.org/10.24874/jsscm.2020.01.03.

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Antioxidant activity represents one of the important features of phenolic acids, such as hydroxyderivatives of cinnamic acid. However, in the case of cis-cinnamic acid derivatives, corresponding thermochemistry data can be still considered scarce. This work is focused on the two most relevant mechanisms of primary antioxidant action in gas-phase, non-polar benzene and in aqueous solution. Reaction enthalpies describing thermodynamics of Hydrogen Atom Transfer (HAT) and Sequential Proton-Loss – Electron Transfer (SPLET) mechanisms were theoretically investigated using (SMD) M06-2X/6-311++G(d,p)
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Baghestani, Ali, Claudel Lemieux, Gilles D. Leroux, Regis Baziramakenga, and Regis R. Simard. "Determination of allelochemicals in spring cereal cultivars of different competitiveness." Weed Science 47, no. 5 (1999): 498–504. http://dx.doi.org/10.1017/s0043174500092171.

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Competitive cereal cultivars are less susceptible than others to weed interference. Their characterization may provide selection criteria that can be used as guidelines to develop new, even more competitive cultivars. Root exudates are a potential means by which competitive cultivars reduce weed growth. The objectives of this study were to evaluate the effect of cereal root exudates onBrassica kaber(DC.) L. C. Wheeler growth, to isolate and characterize the allelochemical compounds released by spring cereal cultivars, and to determine if a relation exists between these allelochemicals and cult
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Миронов, А. М., М. Ю. Акимов, В. А. Кольцов, Т. В. Жидехина, Д. М. Брыксин, and Н. В. Хромов. "ESTIMATION OF HYDROXYCINNAMIC ACIDS CONTENT IN BERRY FRUITS." За Мичуринское плодоводство, no. 1(1) (October 23, 2023): 32–35. http://dx.doi.org/10.34751/fnc-mich.2023.1.1.003.

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Продукция с высоким содержанием гидроксикоричных кислот благотворно воздействует на здоровье человека. В связи с этим возрастает научный интерес к оценке содержания гидроксикоричных кислот в плодах ягодных культур. Количественное определение гидрокискоричных кислот проводили с помощью метода обращенно-фазовой высокоэффективной жидкостной хроматографии. В качестве стандартов использовали: хлорогеновую кислоту (Fluka), кофейную кислоту (Fluka), para-кумаровую кислоту (Sigma), тrans-коричную кислоту (Aldrich), цикориевую кислоту (Sigma), тrans-феруловую кислоту (Sigma). Объектами исследования слу
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Wells, J. E., E. D. Berry, and V. H. Varel. "Effects of Common Forage Phenolic Acids on Escherichia coli O157:H7 Viability in Bovine Feces." Applied and Environmental Microbiology 71, no. 12 (2005): 7974–79. http://dx.doi.org/10.1128/aem.71.12.7974-7979.2005.

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ABSTRACT Ruminant animals are carriers of Escherichia coli O157:H7, and the transmission of E. coli O157:H7 from cattle to the environment and to humans is a concern. It is unclear if diet can influence the survivability of E. coli O157:H7 in the gastrointestinal system or in feces in the environment. Feces from cattle fed bromegrass hay or corn silage diets were inoculated with E. coli O157:H7, and the survival of this pathogen was analyzed. When animals consumed bromegrass hay for <1 month, viable E. coli O157:H7 was not recovered after 28 days postinoculation, but when animals consumed t
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Szwed, Magdalena, Joanna Mitrus, Wiesław Wiczkowski, Henryk Dębski, and Marcin Horbowicz. "The allelopathic properties of decomposing buckwheat residues are not directly related to phenolic compounds in soil." Plant, Soil and Environment 66, No. 5 (2020): 200–206. http://dx.doi.org/10.17221/124/2020-pse.

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Previous studies have shown that residues of common buckwheat roots (BRR) (but not entire common buckwheat plants, BPR) in the soil inhibited the growth of barnyardgrass (Echinochloa crus-galli L.). The objective of the study was to determine how both the residues affect the content of free phenolics, their esters and glycosides in the soil. The aqueous extracts were used to analyse of unbound phenolic compounds, while those bound to the soil were extracted with sodium citrate. Moreover, an in vitro test was used to assess the allelopathic effect of phenolic compounds present in the soil again
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Du, L., and P. Yu. "Effect of barley variety and growth year on ferulic and para-coumaric acids, and their ratio in the seed and hull." Cereal Research Communications 38, no. 4 (2010): 521–32. http://dx.doi.org/10.1556/crc.38.2010.4.9.

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Гурина, Д. Л., М. Л. Антипова, Е. Г. Одинцова, and В. Е. Петренко. "SOLVATION OF HYDROXYBENZOIC AND HYDROXYCINNAMIC ACIDS IN SUPERCRITICAL CARBON DIOXIDE. PECULIARITIES OF HYDROGEN BONDING WITH A POLAR COSOLVENT." Сверхкритические Флюиды: Теория и Практика 13, no. 2(2) (2020): 24–39. http://dx.doi.org/10.34984/scftp.2018.13.2.003.

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С использованием метода классической молекулярной динамики исследована селективная сольватация молекул гидроксибензойных кислот (орто-, мета- и пара-гидроксибензойной, протокатеховой, галловой, сиреневой) и гидроксикоричных кислот (пара-кумаровой, кофейной) полярным сорастворителем (метанол) в среде сверхкритического диоксида углерода при температуре 318 K., плотности 0,7 г/см и концентрации метанола 3,5 мольн. %. Предметом изучения являются локализация сорастворителя в ближайшем окружении растворенного вещества, образование кластеров сорастворителя вокруг растворенного вещества, число и харак
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Tian, Wenfei, Fengju Wang, Kaijie Xu, et al. "Accumulation of Wheat Phenolic Acids under Different Nitrogen Rates and Growing Environments." Plants 11, no. 17 (2022): 2237. http://dx.doi.org/10.3390/plants11172237.

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The health benefits of whole wheat grains are partially attributed to their phenolic acid composition, especially that of trans-ferulic acid (TFA), which is a powerful natural antioxidant. Breeders and producers are becoming interested in wheat with enhanced health-promoting effects. This study investigated the effects of different nitrogen (N) application rates (0, 42, 84, 126, and 168 N kg ha−1) on the phenolic acid composition of three wheat varieties in four locations for two years. The results indicate that the different N rates did not affect the TFA concentration but that they significa
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Dissertations / Theses on the topic "Para-coumaric acids"

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Bell, Benjamin. "Advancing the application of analytical techniques in the biological chemistry of sporopollenin : towards novel plant physiological tracers in Quaternary palynology." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/advancing-the-application-of-analytical-techniques-in-the-biological-chemistry-of-sporopollenin-towards-novel-plant-physiological-tracers-in-quaternary-palynology(59605f2b-642a-4ea9-8921-4c926217e6f2).html.

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Palynology, the study of organic microfossils, is an important tool for improving our understanding of past environments and landscapes. Palynology provides a wealth of information from which climatic and environmental conditions can be inferred. However, inferred climatic and environmental conditions are often open to interpretation. Assumptions made about past climate conditions from pollen assemblages often rely on qualitative understanding of modern-day vegetation distributions, rather than empirical relationships. Historic anthropogenic impact on the environment must also be inferred, and
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