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Annamaria London et al.
Natural product communications, 6(2), 235-236 (2011-03-24)
The root and leaf essential oils, present in trace amounts in Amsonia illustris Woods. (Apocynaceae), were isolated by steam distillation and their chemical constituents identified by GC-FID and GC-MS. More than 80% of the thirty volatile compounds in the leaf
Fei Su et al.
Journal of bacteriology, 193(22), 6400-6401 (2011-11-01)
Bacillus pumilus S-1 is an efficient isoeugenol-utilizing producer of natural vanillin. The genome of B. pumilus S-1 contains the epoxide hydrolase and six candidate monooxygenases that make it possible to explore the mechanism involved in conversion of isoenguenol to vanillin
Jessica Pérez-Outeiral et al.
Journal of chromatography. A, 1526, 82-92 (2017-10-24)
This work presents the development and validation of a multivariate method for quantitation of 6 potentially allergenic substances (PAS) related to fragrances by ultrasound-assisted emulsification microextraction coupled with HPLC-DAD and PARAFAC2 in the presence of other 18 PAS. The objective
Sathya N Prasad et al.
Neurotoxicology, 33(5), 1254-1264 (2012-07-31)
Acrylamide (ACR) intoxication in its monomeric form leads to neuronal damage in both experimental animals and humans. Oxidative stress is one of the principle mechanisms related to the neurotoxicity of ACR exposure. Hence, the present study aimed to recapitulate the
Nur Ain Zamzuri et al.
Journal of the science of food and agriculture, 93(3), 429-438 (2012-12-05)
This review provides an overview of biovanillin production from agro wastes as an alternative food flavour. Biovanillin is one of the widely used flavour compounds in the foods, beverages and pharmaceutical industries. An alternative production approach for biovanillin as a
Morahem Ashengroph et al.
Applied biochemistry and biotechnology, 166(1), 1-12 (2011-10-13)
To screen strains of halotolerant or halophile bacteria which are able to convert isoeugenol to vanillin, 36 different strains of bacteria isolated from the salty environments in Iran were investigated. During growth on isoeugenol, a moderately halotolerant Gram-negative coccobacil showed
Sandra Frahm et al.
Animals : an open access journal from MDPI, 10(7) (2020-07-24)
In this preliminary study, we compared changes in mechanical nociceptive thresholds (MNT) of calves and goat kids injected with clove oil or isoeugenol under the horn bud as a potential, more welfare-friendly alternative to hot-iron disbudding. Twenty male calves and
Eva Kiorpelidou et al.
Chemical research in toxicology, 25(10), 2054-2056 (2012-09-06)
Cytokine release from dendritic cells in vitro is a useful marker to discriminate between sensitizing and irritant haptenic chemicals. Unfortunately, pro-haptens, which gain reactivity following metabolic/auto activation, yield negative results. To overcome this, we exposed human neutrophils and THP-1 cells
Jakob Torp Madsen et al.
Cutaneous and ocular toxicology, 30(2), 116-123 (2011-01-05)
Attempts to improve formulation of topical products are a continuing process and the development of micro- and nanovesicular systems as well as polymeric microparticles has led to marketing of topical drugs and cosmetics using these technologies. Encapsulation of some well-known
Long He et al.
Organic letters, 14(12), 3158-3161 (2012-06-08)
Highly enantio- and diastereoselective three-component inverse electron-demand aza-Diels-Alder reaction of aldehydes, anilines, and isoeugenol derivatives catalyzed by a chiral phosphoric acid catalyst are reported. A wide variety of 2,3,4-trisubstituted tetrahydroquinolines containing an aryl group at the 4-position were obtained in
Nuttawat Wangrangsimagul et al.
Applied microbiology and biotechnology, 93(2), 555-563 (2011-08-05)
Nowadays, majority of vanillin supplied to the world market is chemically synthesized from a petroleum-based raw material, raising a concern among the consumers regarding the product safety. In this study, an organic solvent-tolerant Brevibacillus agri 13 previously reported for a
Louise Arup Fischer et al.
Contact dermatitis, 64(6), 337-342 (2011-05-04)
Allergic contact dermatitis is triggered by chemicals in the environment. Primary prevention is aimed at minimizing the risk of induction, whereas secondary and tertiary prevention are aimed at reducing elicitation. To identify the elicitation doses that will elicit an allergic
T Atsumi et al.
Toxicology in vitro : an international journal published in association with BIBRA, 19(8), 1025-1033 (2005-06-21)
Eugenol (compound in , 4-allyl-2-methyoxyphenol) and isoeugenol (compound in , 4-propenyl-2-methoxyphenol), both used as a flavor agent in cosmetic and food products, have both prooxidant and antioxidant activities. Their adverse effects such as allergic and inflammatory reaction may be due
Batirtze Prats-Mateu et al.
Scientific reports, 8(1), 11804-11804 (2018-08-09)
Raman microscopy is a powerful imaging technique for biological materials providing information about chemistry in context with microstructure. A 532 nm laser is often used as excitation source, because high spatial resolution and signal intensity can be achieved. The latter can
A Luna et al.
British poultry science, 53(5), 631-639 (2013-01-04)
1. A study was conducted to evaluate whether feed supplementation with thymol or isoeugenol can alter Japanese quail growth rate and final body weight, the female onset of puberty, hen-day egg production and the physical and chemical characteristics of the
Yuhe Liao et al.
Science (New York, N.Y.), 367(6484), 1385-1390 (2020-02-15)
The profitability and sustainability of future biorefineries are dependent on efficient feedstock use. Therefore, it is essential to valorize lignin when using wood. We have developed an integrated biorefinery that converts 78 weight % (wt %) of birch into xylochemicals.
Ji-Young Ryu et al.
Bioscience, biotechnology, and biochemistry, 77(2), 289-294 (2013-02-09)
The isoeugenol monooxygenase (iem) gene from Pseudomonas nitroreducens Jin1, responsible for the conversion of isoeugenol to vanillin, was cloned and overexpressed in Escherichia coli. The purified Iem had a predicted molecular mass of 54 kDa. The V(max), K(M), and k(cat)
Michaela Kalmes et al.
Journal of toxicology and environmental health. Part A, 75(8-10), 478-491 (2012-06-13)
The phenolic derivatives eugenol and isoeugenol, which are naturally found in essential oils of different spices, are commonly used as fragrances. Recently data demonstrated that growth suppression produced by these substances occurs in keratinocytes and that the effects may be
Rimple Bhatia et al.
Journal of basic microbiology, 52(5), 504-512 (2011-12-07)
This work evaluates the antifungal activity of two essential oil components against 28 clinical isolates (17 sensitive, 11 resistant) and 3 standard laboratory strains of Candida. Growth of the organisms was significantly effected in both solid and liquid media at
Luca Nicolotti et al.
Journal of chromatography. A, 1360, 264-274 (2014-08-19)
Comprehensive two-dimensional gas chromatography (GC×GC) coupled with Mass Spectrometry (MS) is one of today's most powerful analytical platforms for detailed analysis of medium-to-high complexity samples. The column set usually consists of a long, conventional-inner-diameter first dimension ((1)D) (typically 15-30m long
Morahem Ashengroph et al.
3 Biotech, 7(6), 358-358 (2017-10-06)
40 isoeugenol-tolerant yeasts were isolated from the rhizosphere soil samples which in turn were collected from aromatic plants in different regions of Iran, and further tested for their ability to grow on a minimal medium containing isoeugenol as the sole
Sung-Jin Kim et al.
Archives of biochemistry and biophysics, 541, 37-46 (2013-11-06)
The creosote bush (Larrea tridentata) harbors members of the monolignol acyltransferase, allylphenol synthase, and propenylphenol synthase gene families, whose products together are able to catalyze distinct regiospecific conversions of various monolignols into their corresponding allyl- and propenyl-phenols, respectively. In this
Morgan Zielinski Goldberg et al.
Photochemistry and photobiology, 91(6), 1332-1339 (2015-08-14)
Lignocellulosic biomass can be converted to high-value phenolic compounds, such as food additives, antioxidants, fragrances and fine chemicals. We investigated photochemical and heterogeneous photocatalytic oxidation of two isomeric phenolic compounds from lignin, isoeugenol and eugenol, in several nonprotic solvents, for
Anne S Kienhuis et al.
Toxicological sciences : an official journal of the Society of Toxicology, 147(1), 68-74 (2015-06-07)
Currently, hazard characterization of skin sensitizers is based on data obtained from studies examining single chemicals. Many consumer products, however, contain mixtures of sensitizers that might interact in such a way that the response induced by a substance is higher
Ji-Young Ryu et al.
Bioscience, biotechnology, and biochemistry, 76(10), 1891-1896 (2012-10-11)
Vanillin is one of the most valuable compounds in the flavoring and fragrance industries, and many attempts to produce natural vanillin have been made in recent years. Isoeugenol monooxygenase (Iem) converts the phenylpropanoid compound isoeugenol to vanillin. In Pseudomonas nitroreducens
Ascaridole, a sensitizing component of tea tree oil, patch tested at 1% and 5% in two series of patients.
Christiaan V Bakker et al.
Contact dermatitis, 65(4), 240-241 (2011-09-13)
Valentina Galbiati et al.
Archives of toxicology, 86(2), 239-248 (2011-10-05)
We previously demonstrated in the human promyelocytic cell line THP-1 that all allergens tested, with the exception of the prohapten isoeugenol, induced a dose-related release of interleukin-8 (IL-8). In the present study, we investigated whether this abnormal behavior was regulated
Morten Hyldgaard et al.
International journal of food microbiology, 215, 131-142 (2015-10-05)
Proliferation of microbial population on fresh poultry meat over time elicits spoilage when reaching unacceptable levels, during which process slime production, microorganism colony formation, negative organoleptic impact and meat structure change are observed. Spoilage organisms in raw meat, especially Gram-negative
Daniel Melles et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 913-914, 106-112 (2013-01-05)
Skin sensitization is initiated by the modification of proteins located in the skin. After oxidative activation, eugenol and isoeugenol have the potential to modify skin proteins and therefore cause sensitization processes. Despite their known skin sensitizing properties, they are of
Toshiki Furuya et al.
Chembiochem : a European journal of chemical biology, 15(15), 2248-2254 (2014-08-29)
Vanillin is one of the most widely used flavor compounds in the world as well as a promising versatile building block. The biotechnological production of vanillin from plant-derived ferulic acid has attracted much attention as a new alternative to chemical
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