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S Böttcher et al.
Food chemistry, 169, 492-498 (2014-09-23)
The aim of the present study was to evaluate the off-flavour masking potential of pea dextrin (PD) in emulsions rich in ω-3 and ω-6-fatty acids in comparison with maltodextrin (MD) and 2-hydroxypropyl-β-cyclodextrin (HPBCD). After optimisation of the homogenisation procedure, stable
J Wang et al.
Journal of dairy science, 104(2), 1576-1590 (2020-12-29)
To determine the odor-active compounds in Cheddar cheeses with different ripening times (6, 10, and 14 mo), 39 potent odorants of Cheddar cheeses were identified with a flavor dilution factor range between 1 and 512 by aroma extract dilution analysis.
Nor H Kamarulzaman et al.
Talanta, 191, 535-544 (2018-09-29)
Different extraction procedures were evaluated to assess their potential for measuring volatile organic compounds (VOCs) from raw rubber materials. Four headspace sampling techniques (SHS, DHS, HS-SPME and µ-CTE) were studied. Each method was firstly optimised to ensure their reliability in
E M Goldberg et al.
Journal of chromatography, 226(2), 291-299 (1981-12-11)
Volatile organic substances present in blood plasma and cerebrospinal fluids of certain control groups of human subjects and cirrhotic patients some of whom were suffering from hepatic encephalopathy were quantitatively analysed and identified. A rapid, reproducible, direct injection capillary column
O Campollo et al.
Revista de investigacion clinica; organo del Hospital de Enfermedades de la Nutricion, 44(4), 483-490 (1992-10-01)
Several toxic factors have been implicated in the pathogenesis of hepatic encephalopathy (PSE) among which ammonia plays a dominant role. More recently, the gamma-aminobutyric acid (GABA) hypothesis in which an increase in the GABA-ergic tone and the presence of one
Kazumi Osada et al.
Chemical senses, 34(8), 713-721 (2009-09-18)
Rat urine contains many volatile constituents that may be used for chemical communication. The levels of certain urinary volatiles are strongly dependent on the sex and endocrine status (e.g., puberty). We performed chemical and behavioral studies to identify the volatiles
Changcheng Sun et al.
Acta physiologica (Oxford, England), 231(4), e13626-e13626 (2021-02-14)
Oxytocin plays an important role in social recognition in rodents, which is mediated predominantly by the olfactory system. Although oxytocin modulates neural activity in the olfactory bulb, the underlying mechanism is largely unknown. Here, we studied how direct infusion of
Olga E Melkina et al.
Applied microbiology and biotechnology, 101(14), 5765-5771 (2017-06-04)
Many bacteria, fungi, and plants produce volatile organic compounds (VOCs) emitted to the environment. Bacterial VOCs play an important role in interactions between microorganisms and in bacterial-plant interactions. Here, we show that such VOCs as ketones 2-heptanone, 2-nonanone, and 2-undecanone
Zhenshan Wang et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 26(28), 7375-7379 (2006-07-14)
Terrestrial vertebrates have evolved two anatomically and mechanistically distinct chemosensory structures: the main olfactory epithelium (MOE) and the vomeronasal organ (VNO). Although it has been generally thought that pheromones are detected through the VNO, whereas other chemicals are sensed by
Shaofeng Yuan et al.
Journal of the science of food and agriculture, 99(8), 3761-3768 (2019-01-15)
Aroma scalping is a very common problem and can affect the sensory quality of packaged food. To study the aroma scalping characteristics of polyethylene terephthalate laminated steel (PET-LS), the sorption kinetics of six common aroma compounds (2-pentanone, 2-heptanone, hexanal, citral
Margaret J Couvillon et al.
Journal of chemical ecology, 36(12), 1306-1308 (2010-11-12)
Honey bee (Apis mellifera) guards discriminate nestmates from non-nestmates at the hive entrance. The acceptance threshold of guards is known to change adaptively, for example becoming less permissive when the number of intruder bees from other colonies increases. These adaptive
Jian-Xu Zhang et al.
Chemical senses, 33(7), 611-621 (2008-06-03)
This study was aimed at identifying sex pheromones of the rat (Rattus norvegicus). We characterized the volatiles and semivolatiles of rat preputial gland and voided urine by using gas chromatography-mass spectrometry (GC-MS) and quantified them by their GC areas (abundances)
Andrew S Nichols et al.
The Journal of biological chemistry, 285(16), 11854-11862 (2010-02-12)
The OR class insect odorant receptors are ligand-gated ion channels comprised of at least one common subunit (OR83b in Drosophila) and at least one putative odorant-binding subunit. However, little else is known about the molecular details of insect OR architecture.
Rate study of reduction of 2-heptanone with samarium iodide by gas chromatography.
Fuh MRS, et al.
Talanta, 46(5), 861-866 (1998)
Pingxi Xu et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(46), 16592-16597 (2014-10-29)
Insect repellents are important prophylactic tools for travelers and populations living in endemic areas of malaria, dengue, encephalitis, and other vector-borne diseases. DEET (N,N-diethyl-3-methylbenzamide) is a 6-decade-old synthetic repellent, which is still considered the gold standard of mosquito repellents. Mosquitoes
P N Valdmanis et al.
Oncogene, 34(1), 94-103 (2013-12-10)
Mice in which lung epithelial cells can be induced to express an oncogenic Kras(G12D) develop lung adenocarcinomas in a manner analogous to humans. A myriad of genetic changes accompany lung adenocarcinomas, many of which are poorly understood. To get a
Jinyuan Yan et al.
BMC neuroscience, 20(1), 31-31 (2019-06-19)
Recently, the use of traditional Chinese medicine (TCM) has become more generally accepted, including by the Food and Drug Administration. To expand the use of TCM worldwide, it is important to study the molecular mechanisms by which TCM and its
Jae Hee Hong et al.
Journal of agricultural and food chemistry, 54(24), 9168-9175 (2006-11-23)
Copper is thought to influence aroma perception by affecting volatility of aroma compounds in the mouth through interaction with salivary components, especially proteins. Our objective was to identify the effect of copper on the volatility of aroma compounds and the
Jackelin Q Tran et al.
Archives of environmental contamination and toxicology, 63(1), 169-176 (2012-03-22)
The transport of mixed paint solvents through natural rubber latex (4 mil) and nitrile rubber (5 mil) gloves was evaluated after spray application of the paint formulation directly on the glove surface. Glove materials and thicknesses were those selected by
A W Marshall et al.
Clinical physiology (Oxford, England), 5(1), 53-62 (1985-02-01)
3-Methylbutanal is a volatile aldehyde which in the rat is derived, at least in part, from colonic bacterial breakdown of leucine. It has been proposed as a toxin of importance in the pathogenesis of hepatic encephalopathy in man. A rapid
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