Phenolic choline esters
Web1. júl 2024 · As a choline ester of the sinapic acid, the sinapine contains a quaternary amine that is permanently and positively charged that might confer to the sinapine a significant mitochondrial tropism. WebPhenolic choline esters are well separable by reversed-phase liquid chromatography and sensitively detectable using electrospray ionization mass spectrometry in positive ion …
Phenolic choline esters
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WebDownload scientific diagram Content of sinapine, remaining sinapate esters (Residual SE), and choline in wild-type (WT) seeds and homozygous T3 seeds of the transgenic oilseed … WebCholine Ester. The choline esters of neutral amino acids are 10 to 1000-fold more potent than the choline esters of acidic or basic amino acids. From: Studies in Natural Products …
WebPhenolic choline esters are well separable by reversed-phase liquid chromatography and sensitively detectable using electrospray ionization mass spectrometry in positive ion … Web1. jan 1991 · Choline esters such as sinapine, isoferuloylcholine, feruloylcholine, hesperaline and 4-hydroxybenzoylcholine, have been found in many of the plants under study. Qualitative and quantitative distribution patterns of these compounds are genus-characteristic. This suggests them to be a useful tool in the chemotaxonomy of Crucifereae.
Web1. jan 1991 · Total contents of aromatic choline esters and sinapine have been investigated in seeds of cruciferous species belonging to Arabis ... (Bekkara et al., 1998). Phenolic acids can also be bound with different substances, e.g. cholate, malate, polyamines and according to Bouchereau et al. (1991) they were assayed as malate, cholate and polyamines ... Web1. mar 2024 · Pokorny and Reblova (1995) reported that sinapine, the choline ester of sinapic acid, is the most predominant phenolic choline ester present in rapeseed flour and meal. Blair and Reichert (1984) reported that the content of sinapine in defatted rapeseed and canola is approximately 2.67–2.85%.
WebThe choline ester group has been applied as an enzymatically labile blocking group for C-termini of simple peptides as well as for sensitive conjugated peptides like glycosylated, …
Web4. dec 2011 · Low-molecular weight poly(ε-caprolactone), polylactides, and copolymers of ε-caprolactone and lactide were synthesized by ring-opening polymerization of cyclic monomers with choline (CHOL) as a initiator and SnOct2 as a catalyst. Polymerization was conducted in bulk (120–160 °C) with high yield. Effects of temperature, reaction time, and … my asus laptop fan won\u0027t turn offWeb1. mar 2002 · High performance liquid chromatography of phenolic choline ester fragments derived by chemical and enzymatic fragmentation processes: analysis of sinapine in rape … my asus laptop audio is not workingWeb13. mar 2002 · Sinapine, which is the major phenolic choline ester found in rape seed, was quantitatively hydrolyzed to choline and sinapic acid upon treatment with a solution of sodium hydroxide at room temperature. Choline was further converted to betaine by incubating the base hydrolyzate with choline oxidase. my asus laptop battery is not chargingWeb19. nov 2013 · Phenolic choline esters content in seeds of β-oxidation mutants. Compounds were identified based on the data of Böttcher et al. (2009). A to C, BA … how to pair shoes with pantsWeb25. nov 2008 · Phenolic choline esters are well separable by reversed-phase liquid chromatography and sensitively detectable using electrospray ionization mass spectrometry in positive ion mode. CID mass spectra obtained from molecular ions facilitate the characterization of both the type and substitution pattern of such compounds. Therefore, … how to pair shokz to iphoneWebThe AChE inhibitory activities of the new phenolic-choline esters, and their parent compounds (Figures 2 and 3), were evaluated and the results are summarized in Table 1. All the carboxylic homologues displayed low AChE inhibitory activities, but the insertion of the choline moiety resulted, for all cases, in a drastic increase in those ... my asus laptop driversWebPhenolic choline esters are combined forms of naturally occurring phenolic acids [1]. They are especially abun-dant in the seeds of some glucosinolate-containing plants or crucifer … how to pair shokz to phone