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Enbo Xu et al.
Journal of food science, 80(7), C1476-C1489 (2015-06-20)
Enzymatic extrusion, instead of traditional steam cooking, to treat rice is an efficient and alternative pretreatment for Chinese rice wine fermentation. In order to determine the formation of volatiles in enzymatic extrusion-processed rice wine (EE), and to confirm its characteristic
Shokouh Hosseinzadeh Haddadi et al.
Journal of chromatography. A, 1216(14), 2783-2788 (2008-09-26)
A new cold fiber solid-phase microextraction device was designed and constructed based on thermoelectric cooling. A three-stage thermoelectric cooler (TEC) was used for cooling a copper rod coated with a poly(dimethylsiloxane) (PDMS) hollow fiber, which served as the solid-phase microextraction
Kiyomi Tsuji et al.
Journal of UOEH, 27(2), 151-160 (2005-07-01)
We have established a method for simultaneously analyzing termiticides (13 kinds) in indoor air based on collection by combination of quartz filter and C18 Empore extraction disks, and measurement using gas chromatography mass spectrometry (GC/MS). The lower limit of determination
J E Cilek et al.
Journal of the American Mosquito Control Association, 27(4), 393-397 (2012-02-15)
The relative attractiveness of Mosquito Magnet-X suction traps baited with various combinations of the BG Lure, nonanal, 1-octen-3-ol (octenol), and carbon dioxide was evaluated against laboratory-reared female Aedes albopictus and Culex quinquefasciatus in semi-field trials in northwestern Florida. In the
P Saraí Girón-Calva et al.
Journal of chemical ecology, 38(2), 226-228 (2012-02-14)
Volatiles emitted from stressed plants can induce resistance in healthy neighbors. It remains unknown, however, how plants perceive volatiles and convert them into internal signals. We exposed lima bean (Phaseolus lunatus L.) to different concentrations of either of two volatiles
Matthieu Dacher et al.
PloS one, 3(10), e3513-e3513 (2008-10-24)
Restrained worker honey bees are a valuable model for studying the behavioral and neural bases of olfactory plasticity. The proboscis extension response (PER; the proboscis is the mouthpart of honey bees) is released in response to sucrose stimulation. If sucrose
Charles J Weschler et al.
Environmental science & technology, 41(17), 6177-6184 (2007-10-17)
We have used multiple analytical methods to characterize the gas-phase products formed when ozone was added to cabin air during simulated 4-hour flights that were conducted in a reconstructed section of a B-767 aircraft containing human occupants. Two separate groups
J Enrique Cometto-Muñiz et al.
Chemical senses, 35(4), 289-299 (2010-03-02)
We have measured concentration detection (i.e., psychometric) functions to determine the odor detectability of homologous aliphatic aldehydes (propanal, butanal, hexanal, octanal, and nonanal) and helional. Subjects (16 < or = n < or = 18) used a 3-alternative forced-choice procedure
Jairo Torres Magalhães-Junior et al.
Analytical and bioanalytical chemistry, 406(26), 6691-6700 (2014-08-31)
Visceral leishmaniasis (VL) is a zoonosis whose etiologic agent in the Americas is Leishmania infantum, and dogs are the main host. Research and innovation in diagnostic techniques are essential to improve the surveillance and control of VL in endemic areas.
Rosario Sánchez-Gómez et al.
Journal of agricultural and food chemistry, 62(45), 10861-10872 (2014-10-23)
Vine-shoots are an important waste in all viticulture areas that should be re-used with innovative applications. The aim of this work was to produce Airén waste vine-shoot aqueous extracts by four solid-liquid extraction techniques such as conventional solid-liquid extraction (CSLE)
Diane F Eilerts et al.
Insects, 9(4) (2018-10-27)
Many biological processes and behaviors in mosquitoes display rhythmic patterns, allowing for fine tuning to cyclic environmental conditions. In mosquitoes, vector-host interactions are primarily mediated by olfactory signals. Previous studies have established that, in the malaria vector Anopheles gambiae, rhythmic
Thomas Van Hecke et al.
PloS one, 9(6), e101122-e101122 (2014-07-01)
The effects of fat content and nitrite-curing of pork were investigated on the formation of cytotoxic and genotoxic lipid oxidation products (malondialdehyde, 4-hydroxy-2-nonenal, volatile simple aldehydes), protein oxidation products (protein carbonyl compounds) and NOC-specific DNA adducts (O6-carboxy-methylguanine) during in vitro
Yang Huang et al.
Journal of food science, 75(1), C121-C127 (2010-05-25)
Cocoa beans were alkalized before or after roasting and made into cocoa liquor before analyzing by SIFT-MS. In both alkalized-before-roasting and alkalized-after-roasting samples, there were significantly higher concentrations of alkylpyrazines for the samples with pH above 7 than pH below
Martin Globisch et al.
Journal of agricultural and food chemistry, 62(33), 8500-8507 (2014-07-30)
Hexanal, 2-heptenal, and nonanal were identified as relevant reaction products formed in the course of the lipid peroxidation of heated peanut oil. For the identification of potential amino acid side chain adducts, kinetic studies between N(α)-benzoylglycyl-l-lysine as a model for
Elena Chiarpotto et al.
BioFactors (Oxford, England), 24(1-4), 229-236 (2006-01-13)
Transient activation of fibroblasts or fibroblast-like cells to proliferate and to produce elevated quantities of extracellular matrix is essential to fibrosis. This activation is regulated by several cytokines produced by various inflammation-associated cells. Among these, transforming growth factor beta1 (TGFbeta1)
JianCai Zhu et al.
Journal of agricultural and food chemistry, 63(34), 7499-7510 (2015-08-11)
The aroma profile of oolong tea infusions (Dongdingwulong, DDWL; Tieguanyin, TGY; Dahongpao, DHP) were investigated in this study. Gas chromatography-olfactometry (GC-O) with the method of aroma intensity (AI) was employed to investigate the aroma-active compounds in tea infusions. The results
H H Jeleń et al.
Letters in applied microbiology, 40(4), 255-259 (2005-03-09)
Volatile compounds present in strawberries infected with Phytophthora cactorum, especially those responsible for the characteristic off-odour of such fruits were the subject of this study. Six strawberry varieties (Redgauntlet, Selva, Korona, Tenira, Real, Pegasus) inoculated with P. cactorum strain (PC-5)
J C Reynolds et al.
Environmental science & technology, 40(21), 6674-6681 (2006-12-06)
The products arising from the ozonolysis of oleic acid (cis-9-octadecenoic acid) in solution have been studied using negative ion mode electrospray ionization ion trap mass spectrometry. Oleic acid is an important component of atmospheric organic aerosol and is a key
Jie Li et al.
Clinica chimica acta; international journal of clinical chemistry, 436, 59-67 (2014-05-13)
Breast cancer (BC) remains the most commonly diagnosed malignancy in women. We investigated 4 straight aldehydes in the exhaled breath as potential early BC diagnostic biomarkers. End-tailed breath were collected by Bio-VOC® sampler and assayed by gas chromatography-mass spectrometry. Kruskal-Wallis
Janina Kühn et al.
Journal of agricultural and food chemistry, 56(21), 10218-10224 (2008-10-22)
The interactions of whey protein isolate (WPI) and flavor compounds (2-nonanone, 1-nonanal, and trans-2-nonenal) were investigated, and the influence of flavor compound structure and heat and high pressure denaturation on the interactions were determined by using headspace solid-phase microextraction (SPME)
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
Zainulabeuddin Syed et al.
Proceedings of the National Academy of Sciences of the United States of America, 106(44), 18803-18808 (2009-10-28)
West Nile virus, which is transmitted by Culex mosquitoes while feeding on birds and humans, has emerged as the dominant vector borne disease in North America. We have identified natural compounds from humans and birds, which are detected with extreme
Luca Falchero et al.
Natural product research, 23(15), 1367-1372 (2009-10-08)
The volatile fraction from the aerial part of Alchemilla xanthochlora Rothm. (Rosaceae) was obtained by hydrodistillation, and the chemical composition of the obtained oil was determined by GC/FID and GC/MS. Several compounds were found, belonging to the classes of aldehydes
Seung-Ah Lee et al.
Biochimica et biophysica acta, 1782(6), 421-425 (2008-04-09)
Mutations in human Retinol Dehydrogenase 12 (RDH12) are known to cause photoreceptor cell death but the physiological function of RDH12 in photoreceptors remains poorly understood. In vitro, RDH12 recognizes both retinoids and medium-chain aldehydes as substrates. Our previous study suggested
Carmine Summo et al.
Meat science, 86(3), 839-844 (2010-08-04)
An experimental investigation was carried out to study the evolution of the volatile compounds of ripened sausages as a function of both storage time (time) and composition of packaging atmosphere (MAP). Ripened sausages, prepared at an industrial plant, were packed
Mitsuo Miyazawa et al.
Journal of oleo science, 56(9), 457-461 (2007-09-28)
A steam distilled oil obtained from Matteuccia struthiopteris was analyzed by GC and GC/MS. The oil was found to contain 103 volatile components, and (E)-phytol (24.8%), nonanal (15.1%) and decanal (7.6%) as the main compounds. The oil included two aldehydes
Yuka Ohkado et al.
Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan, 46(1), 13-20 (2005-05-11)
The residual volatiles in recycled polyethylene terephthalate (PET) were analyzed using headspace/GC/MS. Recycled PET samples were made from PET bottles used for beverages, alcohol and soy sauce, and they were recycled in physical recycling plants, chemical recycling plants and superclean-like
Nobuo Ochiai et al.
Journal of chromatography. A, 1421, 103-113 (2015-08-16)
An extension of multi-volatile method (MVM) technology using the combination of a standard dynamic headspace (DHS) configuration, and a modified DHS configuration incorporating an additional vacuum module, was developed for milliliter injection volume of aqueous sample with full sample evaporation.
Carolina Azcarate et al.
Journal of food science, 75(9), C710-C721 (2011-05-04)
Samples of unblanched (fresh), stannous chloride-treated, or blanched jalapeño peppers were measured for real-time generation of lipoxygenase-derived volatiles during 10 min after tissue disruption. Volatiles were also measured before and after 1.5, 2.5, 3, 6, and 9 mo of frozen
Audrey Errard et al.
Journal of agricultural and food chemistry, 63(46), 10103-10111 (2015-10-29)
Tomato is susceptible to pest infestations by both spider mites and aphids. The effects of each individual pest on plants are known, whereas multiple-pest infestations have received little interest. We studied the effects of single- versus multiple-pest infestation by Tetranychus
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