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Laila Ali et al.
Journal of AOAC International, 91(2), 383-386 (2008-05-15)
A method is described for determining coumarin, vanillin, and ethyl vanillin in vanilla extract products. A product is diluted one-thousand-fold and then analyzed by reversed-phase liquid chromatography using a C18 column and a mobile phase consisting of 55% acetonitrile-45% aqueous
Meropi Timotheou-Potamia et al.
Talanta, 71(1), 208-212 (2007-01-15)
Vanillin, ethylvanillin and 4-hydroxy-3-methoxy-benzylalcohol have been found to chemiluminesce by the action of potassium permanganate in sulphuric or polyphosphoric acid media. Both acid media have been compared and sulphuric acid allows the sensitive determination of 0.15-10.0, 0.010-1.0 and 0.0030-0.30microg mL(-1)
Akihiro Tai et al.
Bioscience, biotechnology, and biochemistry, 75(12), 2346-2350 (2011-12-08)
We systematically evaluated the antioxidant activity of ethyl vanillin, a vanillin analog, as compared with the activities of vanillin and other vanillin analogs using multiple assay systems. Ethyl vanillin and vanillin exerted stronger antioxidant effects than did vanillyl alcohol or
Tadashi Ishimaru
The Annals of otology, rhinology, and laryngology, 116(5), 335-341 (2007-06-15)
Endoscopy of the human olfactory cleft is important for both research in human olfaction and clinical examination with regard to olfactory disorders. However, endoscopy only provides information on the morphology and functional status of the epithelium, and it does not
M Schandar et al.
The Journal of biological chemistry, 273(27), 16669-16677 (1998-06-27)
Chemoelectrical signal transduction in olfactory neurons appears to involve intracellular reaction cascades mediated by heterotrimeric GTP-binding proteins. In this study attempts were made to identify the G protein subtype(s) in olfactory cilia that are activated by the primary (odorant) signal.
Xiao-min Chen et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 50(6), 1897-1901 (2012-03-28)
Food safety is of extreme importance to human health. Vanillin and ethyl vanillin are the widely used food additives and spices in foods, beverages, cosmetics and drugs. The objective of the present work was to evaluate the impact of vanillin
David Kahoun et al.
Journal of chromatography. A, 1202(1), 19-33 (2008-07-16)
The objective of this study was the determination of 25 phenolic compounds in different mead samples (honeywines) using high performance liquid chromatography (HPLC) with coulometric-array detection and in case of hydroxymethylfurfural with UV detection. Our method was optimized in respect
E Jagerdeo et al.
Journal of AOAC International, 83(1), 237-240 (2000-02-29)
This paper describes a reversed-phase liquid chromatographic method for the determination of vanillin, associated natural aromatic compounds and/or synthetic precursors, ethyl vanillin, and coumarin, a commonly encountered adulterant in nonbeverage and beverage alcohol products using a ternary gradient mobile phase.
Diana L D Lima et al.
Talanta, 72(4), 1404-1409 (2007-06-15)
Operational parameters like migration time, temperature, voltage, composition of background electrolyte and content of organic modifier were optimized in CZE for the determination of lignin-like phenolic compounds. The applied background electrolyte buffer consisted of a Na(2)B(4)O(7), KH(2)PO(4) aqueous solution, pH
P Duchamp-Viret et al.
Science (New York, N.Y.), 284(5423), 2171-2174 (1999-06-26)
Molecular biology studies of olfaction have identified a multigene family of molecular receptors that are likely to be involved in odor transduction mechanisms. However, because previous functional data on peripheral coding were mainly collected from inferior vertebrates, it has been
Hyun-Joo Jung et al.
Archives of pharmacal research, 33(2), 309-316 (2010-03-03)
The present work aimed to assess novel pharmacological properties of ethyl vanillin (EVA) which is used as a flavoring agent for cakes, dessert, confectionary, etc. EVA exhibited an inhibitory activity in the chorioallantoic membrane angiogenesis. Anti-inflammatory activity of EVA was
Lowri S de Jager et al.
Journal of chromatography. A, 1145(1-2), 83-88 (2007-01-26)
A LC-MS method was developed for the determination of coumarin, vanillin, and ethyl vanillin in vanilla products. Samples were analyzed using LC-electrospray ionization (ESI)-MS in the positive ionization mode. Limits of detection for the method ranged from 0.051 to 0.073
Yun-Qiu Li et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 33(4), 545-546 (2010-09-18)
To study the chemical constituents from the marine sponge Iotrochota sp. The compounds were isolated and purified by various column chromatography methods, and their structure wer identified cholesterol (1), nonadecyl ethers of glycerol (2), p-hydroxybenzaldehyde (3), (E)-4-(3,4-dihydroxyphenyl) but-3-en-2-one (4), 3,4-dihydroxybenzaldehyde
Gökçe Polat Yemiş et al.
Journal of food science, 77(9), M523-M527 (2012-08-21)
The thermal tolerance Cronobacter sakazakii was examined in sterile powdered infant formula (PIF) rehydrated at 58 °C in water or apple juice supplemented with vanillin, ethyl vanillin, or vanillic acid. All three compounds decreased thermal tolerance during-rehydration and the lowest
Jean-Pierre Rospars et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 28(10), 2659-2666 (2008-03-07)
Most olfactory receptor neurons (ORNs) express a single type of olfactory receptor that is differentially sensitive to a wide variety of odorant molecules. The diversity of possible odorant-receptor interactions raises challenging problems for the coding of complex mixtures of many
Jih-Jung Chen et al.
Journal of natural products, 71(6), 1016-1021 (2008-05-13)
Four new compounds, including two new dihydroagarofuranoid sesquiterpenes, 8-benzoyloxymutangin (1) and 15-acetoxyorbiculin G (2), a new lignan derivative, 9,9'- O-di-(Z)-feruloyl-(-)-secoisolariciresinol (3), and a new benzenoid, 5'-methoxyevofolin B (4), have been isolated from the stem of Microtropis japonica, together with 20
Emilio J Cocinero et al.
Physical chemistry chemical physics : PCCP, 12(39), 12486-12493 (2010-08-20)
The conformational equilibria of vanillin and ethylvanillin have been investigated in a supersonic jet expansion using rotational spectroscopy. Two conformers have been detected for each molecule, with a dominant O-H···O intramolecular hydrogen bond locking the local conformation of the hydroxyl
Mónica Avila et al.
Electrophoresis, 28(22), 4233-4239 (2007-10-18)
Five vanilla-related flavors of food significance, vanillic alcohol (VOH), ethyl maltol (EMA), maltol (MAL), ethyl vanillin (EVA) and vanillin (VAN), were separated using CE microchips with electrochemical detection (CE-ED microchips). A +2 kV driving voltage for both injection and separation
Mónica Avila et al.
Electrophoresis, 30(19), 3413-3418 (2009-09-10)
A new strategy based on the fast separation of the fingerprint markers of Vanilla planifolia extracts and vanilla-related samples on microfluidic-electrochemistry chip is proposed. This methodology allowed the detection of all required markers for confirmation of common frauds in this
Gökçe Polat Yemiş et al.
Journal of food protection, 74(12), 2062-2069 (2011-12-22)
Preservatives could be part of an effective intervention strategy for the control of Cronobacter species in foods, but few compounds with the desired antimicrobial properties have been identified to date. We examined the antibacterial activity of vanillin, ethyl vanillin, and
O A Mamer et al.
Biomedical mass spectrometry, 12(4), 163-169 (1985-04-01)
It has been discovered recently that several patients undergoing urinary organic acid profiling excrete high concentrations of 3-ethoxy-4-hydroxybenzoic acid and traces of 3-ethoxy-4-hydroxymandelic acid. These are believed to be the consequences of feeding the patients with synthetic diets flavoured with
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