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Showing 1 to 19 of 19 for “"hydroxycinnamic acid"”.
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Novel Sulfated 4-Hydroxycinnamic Acid Oligomers as Potent Anticoagulants
… chemo-enzymatically prepared oligomers of 4-hydroxycinnamic acids (DHPs) as potential anticoagulants. Oligomers were prepared through peroxidase-catalyzed oxidative coupling of 4-hydroxycinnamic acids. The products resulting from this reaction are called CDs, FDs and SDs. Structurally, these …
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Phytochemical mediated resistance in sweetpotato to sweetpotato weevils
… development and emergence of adult weevils. Six hydroxycinnamic acid esters, including hexadecylcaffeic, hexadecylcoumaric, octadecylcaffeic, octadecylcoumaric, heptadecylcaffeic and 5-O-caffeoylquinic acid esters were identified on the root surface and amounts of these differed significantly …
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The supramolecular modification of trans-resveratrol and related antioxidant molecules
… the beneficial effects of red wine. The phenolic hydroxycinnamic acids caffeic acid (CAF), ferulic acid (FA), p-coumaric acid (PCA) and sinapic acid (SA) are found in a wide variety of plants and also have antioxidant activity. The acetophenone derivatives paeonol (2H4M) and vanillin (4H3M) …
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Studies on lignin biosynthesis and structure
… alcohol level. Administration of (2-¹⁴C) ferul1c acid to feland wheat (<u>Triticum aest1yum</u> L.) over extended durations (21 days) and subsequent isolation of the lignin from the root tissue as its acetal derivative demonstrated the incorporation of the labelled feru1ic acid into the lignin …
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DEVELOPMENT OF FLOW PROCESSES FOR THE EFFICIENT AND SUSTAINABLE PREPARATION OF HIGH VALUE CHEMICALS
… to synthesize riparin-inspired amides and hydroxycinnamic acid derivatives. The research also focused on the development of continuous flow methods for the synthesis of sugar-based surfactants, addressing limitations of traditional batch processes such as harsh conditions, low selectivity, …
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The analysis of salt resistant surfactants used in enhanced oil recovery.
… spectra were obtained using either alpha-cyano-4-hydroxycinnamic acid or 2,5-dihydroxybenzoic acid as matrix with the addition of lithium chloride to simplify the mass spectra obtained. Data obtained from each method indicate that the NPEOS formulation has an ethoxymer chain length ranging from …
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Towards unveiling the Photoactive Yellow Proteins: characterization of a halophilic member and a proteomic approach to study light responses
… to light perception. PYP covalently binds a p-hydroxycinnamic acid chromophore, which is fine-tuned for efficient light absorption and initiates a photocycle by a trans to cis isomerization. PYPs were originally discovered in a number of halophilic proteobacteria, but the pyp gene distribution …
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Anticancer activity of Lovage (Levisticum officinale Koch) extracts
… was tentatively identified as 3-methoxy-4-hydroxycinnamic acid (ferulic acid). The n-hexane fraction (LoH26-36) was tentatively identified as 1,2,3-propanetriol trilinoleate (trilinolein) mixed with a steroid ester and the hexane fraction (LoH49-60) was a mixture of …
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SYNTHESIS AND BIOLOGICAL EVALUATION OF NOVEL ANTIPARASITIC AND ANTICANCER AGENTS
… synthetic derivative 3-Br-acivicin, as well as hydroxycinnamic acid derivatives, which have demonstrated antiparasitic properties. These moieties were linked through different molecular connectors to optimize pharmacological properties and evaluated for their activity against Trypanosoma brucei …
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Investigation of Primary Ion Formation Mechanisms in UV-MALDI-MS Using Excited State Dynamics of Common MALDI Matrices
… iodine to the gold standard matrix, α-cyano-hydroxycinnamic acid, should drastically improve the performance of the non-substituted matrix due to the increase in triplet species present for pooling reactions. Sample preparation methods in MALDI are examined as are the effects of crystal …
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Functional analysis of selected DOF transcription factors in the model plant Arabidopsis thaliana
… genes whilst in certain tissues it activates hydroxycinnamic acid production. It was hypothesized that this dual function is most likely related to specific interactions with other proteins; perhaps other TFs (Skirycz et al., 2007). Finally OBP1 regulates both cell proliferation and cell …
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Metabolite Production in Callus Culture of Burdock (Arctium lappa L.)
… detected by HPLC and preliminarily identified as hydroxycinnamic acid derivatives based on their retention times and UV-spectra. Addition of methyl jasmonate up to 1 mM and 60 g/L and 90 g/L sucrose increased the content of total phenolic and some major individual phenolic compounds in burdock …
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Deciphering the chemistry of host-parasitic plants interactions using the UHPLC-q-TOF-MS and chemometrics
… is predominantly composed of chemically diverse hydroxycinnamic acid derivatives. Interestingly, the methanolic crude extracts of this plant were found to contain cis isomers of chlorogenic acids (CGAs) and this was confirmed through in vitro UV irradiation of the plant extracts. The presence of …
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Effect of pomegranate extracts on apoptosis and cell cycle in haematological malignancies.
… were enriched in ellagitannins, ellagic acid, and hydroxycinnamic acid derivatives but depleted in anthocyanins.The potential protective effect of a number of pure compounds that were either identified in the acetonitrile fraction of PJ were present in the other fractions of PJ or have …
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Identifying candidate genes/loci influencing barley secondary cell wall properties
… form cross-links through cell wall bound ferulic acid; this matrix influences the efficiency of enzymatic breakdown of the cell wall. Changes in lignin content, lignin composition and phenolic acid content have been shown to affect saccharification (sugar release from cell walls).<br/><br/>The …
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Processi di biorefining per l'estrazione di secondary chemical building blocks da sottoprotti dell'agro-industria
… constituted by simple phenols, phenolic acids, hydroxycinnamic acid derivatives, flavonoids and lignans. As in the case of coke production, the removal of the phenolic contents from biomass upgrades also the residual biomass. Focusing on the phenolic component of agrifood wastes, huge …
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Improvement of nutritional characteristics and other health benefits of processed maize food products
… Spectroscopy (FTIR), but the insoluble-bound hydroxycinnamic acids were difficult to quantify using standard extraction protocols. Therefore, at the onset of the project, a high-throughput method for the extraction of insoluble-bound hydroxycinnamic acids was developed (Chapter 1). The overall …
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Chemistry of hydroxycinnamate esters and their role as precursors to Dekkera produced off-flavour in wine.
… studied with respect to the breakdown of the hydroxycinnamic acids, p-coumaric and ferulic acid, by D. bruxellensis. The presence of esterified hydroxycinnamate conjugates in grapes and wine is well established and they account for a large proportion of the hydroxycinnamate content. There …
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Effects of aspects of terroir on the phenolic composition of New Zealand Pinot noir wines
… positive correlations with some hydroxybenzoic acids were also found.