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Jian Zhao et al.
Food chemistry, 226, 51-60 (2017-03-04)
Pork of black-pig in China is well known for its quality and preferred by consumers. However, there is a lack of research on its flavors. By solvent assisted flavor evaporation combined with GC-MS, 104 volatile compounds in the stewed pork
Richard Gminski et al.
Toxicology letters, 196(1), 33-41 (2010-04-07)
Due to the massive reduction of air-change rates in modern, energy-saving houses and dwellings, the contribution of volatile organic compound (VOCs) emissions from wood-based materials to indoor air quality has become increasingly important. To evaluate toxicity of VOC mixtures typically
Kirsten Hokeness et al.
Canadian journal of microbiology, 60(1), 1-4 (2014-01-08)
Evidence has shown that individuals exposed to indoor toxic molds for extended periods of time have elevated risk of developing numerous respiratory illnesses. It is not clear at the cellular level what impact mold exposure has on the immune system.
Vincent Harraca et al.
BMC biology, 8, 121-121 (2010-09-11)
Abdominal wounding by traumatic insemination and the lack of a long distance attraction pheromone set the scene for unusual sexual signalling systems. Male bed bugs (Cimex lectularius) mount any large, newly fed individual in an attempt to mate. Last instar
Xiao Yang et al.
Foods (Basel, Switzerland), 9(2) (2020-02-26)
Thermally treated watermelon juice (TW) presents a strong unpleasant smell, resulting in poor consumer acceptance. It is necessary to identify the key off-flavor compounds in TW. Solid-phase microextraction (SPME) and solvent-assisted flavor evaporation (SAFE) coupled with gas chromatography-olfactometry-mass spectrometry (GC-O-MS)
K Hasegawa et al.
Biochimica et biophysica acta, 962(3), 371-376 (1988-10-14)
The structures of fluorescent products formed in the reaction of methyl linoleate hydroperoxides with adenine, FeSO4 and ascorbic acid were investigated to elucidate the mechanism of interaction. The fluorescent products consisted of at least four major components (I-IV), which could
M Alaiz et al.
Biological & pharmaceutical bulletin, 17(1), 51-57 (1994-01-01)
It is known that macrophages recognize and take up oxidized low density lipoprotein (LDL) and this macrophage recognition has been suggested to be due to modification of the lysine (Lys) residues of apoprotein B (apo B). In order to determine
J R Aldrich et al.
Journal of chemical ecology, 28(8), 1565-1582 (2002-10-10)
Tachinid flies commonly use the pheromones and allomones of stink bugs (Pentatomidae) as host-finding kairomones. Pheromone-baited traps for predaceous (Podisus spp.) and phytophagous (Euschistus spp.) pentatomids were used to obtain tachinid parasitoids in order to study the semiochemical relationships between
M Alaiz et al.
Chemistry and physics of lipids, 77(2), 217-223 (1995-08-25)
Bovine serum albumin (BSA) undergoes a number of deteriorative changes when exposed to E-2-octenal. Reaction of BSA with E-2-octenal produced fluorescent BSA with an excitation maximum at 350 nm and emission maximum at 440 nm and promoted polymerization. Amino acid
P Wanner et al.
European journal of biochemistry, 255(1), 271-278 (1998-08-06)
Two enone reductases catalyzing irreversibly the enantioselective reduction of alpha,beta-unsaturated carbonyls have been purified 165-fold and 257-fold, respectively, from the cytosolic fraction of Saccharomyces cerevisiae by means of streptomycin sulfate treatment, Sephadex G-25 filtration, DEAE-Sepharose CL-6B chromatography, blue Sepharose CL-6B
Yin Zhu et al.
Food research international (Ottawa, Ont.), 108, 74-82 (2018-05-08)
A chestnut-like aroma is widely considered an important indicator of an excellent-quality green tea; however, the key odorants responsible for chestnut-like aroma have never been systematically studied and remain unknown. In this study, the aroma components of green teas and
Ole Kilpinen et al.
PloS one, 7(12), e50981-e50981 (2012-12-12)
In recent years, bed bug (Hemiptera: Cimicidae) problems have increased dramatically in many parts of the world, leading to a renewed interest in their chemical ecology. Most studies of bed bug semiochemicals have been based on the collection of volatiles
Michaela Bodner et al.
Journal of chemical ecology, 38(5), 547-556 (2012-05-15)
The secretions from serial defensive glands of the Austrian diplopod Allajulus dicentrus (Julidae, Cylindroiulini) were extracted and analyzed by means of gas chromatography - mass spectrometry. In adults, 13 components from two chemical classes were detected: 1) The common juliform
Chemical composition and antioxidant and antibacterial activities of an essential oil extracted from an edible seaweed, Laminaria japonica L.
P Jayanta Kumar, et al.
Molecules (Basel), 20(7), 12093-12113 (2015)
Juan Wang et al.
Food research international (Ottawa, Ont.), 105, 150-158 (2018-02-13)
The interactions of soy protein isolate (SPI) and flavor compounds (hexanal, trans-2-hexenal, 1-octen-3-ol, trans-2-octenal, nonanal, and trans-2-nonenal) were investigated. The influence of SPI structure modified by malondialdehyde (MDA) and flavor compound structure on the interactions were determined by using headspace
Lorena Lopes Ferreira et al.
Ticks and tick-borne diseases, 10(3), 621-627 (2019-02-26)
Amblyomma sculptum is a tick affecting animal and human health across Argentina, Bolivia, Paraguay and Brazil. Donkeys, Equus asinus, are known to be resistant to A. sculptum, suggesting that they can produce non-host tick semiochemicals (allomones), as already demonstrated for
Taiko Miyasaki et al.
Journal of food science, 76(9), C1319-C1325 (2012-03-16)
The change of volatile compounds in fresh fish meat during 3- to 4-d ice storage was investigated for several fishes using an electronic nose system and a gas chromatography-mass spectrometer (GC/MS) with headspace solid-phase micro-extraction (SPME). Principal component analyses for
C I Chien et al.
Biochimica et biophysica acta, 1204(2), 175-180 (1994-02-16)
Five different alpha,beta-unsaturated carbonyl compounds displayed different reactivities with regard to inhibition of alpha- and mu-class isozymes of rat liver glutathione S-transferases and the chemical reaction with glutathione. Only (E)-2-octenal and (E)-3-nonen-2-one exhibited significant levels of inhibition for each of
Hiroshi M Ueno et al.
Journal of food science, 77(8), C853-C858 (2012-08-07)
The iron-lactoferrin complex (FeLf) is useful for dietary iron supplementation. However, the effects of FeLf on iron-catalyzed off-flavors in lipid-containing food products have not been reported. In this study, we investigated the effects of FeLf on off-flavors development during the
Koji Noge et al.
Journal of chemical ecology, 38(8), 1050-1056 (2012-10-12)
We examined whether shared volatiles found in various heteropteran species and developmental stages function to repel predators. The nymphal dorsal abdominal gland secretions of Riptortus pedestris (Heteroptera: Alydidae) and Thasus acutangulus (Heteroptera: Coreidae), and the metathoracic scent gland secretion of
R Canonero et al.
Mutation research, 244(2), 153-156 (1990-06-01)
Five alk-2-enals--pent-2-enal, hex-2-enal, hept-2-enal, oct-2-enal and non-2-enal--produced by lipid peroxidation were tested for mutagenic activity in V79 Chinese hamster cells. At concentrations ranging from 0.003 to 0.3 mM all 5 alk-2-enals induced a dose-dependent increase in the frequency of 6-thioguanine-resistant
Nathalie Moreira et al.
Food chemistry, 270, 518-526 (2018-09-04)
A method based on headspace solid-phase microextraction (HS-SPME) coupled to gas chromatography-triple quadrupole/mass spectrometry detection (GC-TQ/MS) with a prior derivatization step with O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA) was developed to quantify carbonyl compounds in different categories of Port wines. Optimal extraction conditions
Xinyi Zhang et al.
Journal of agricultural and food chemistry, 67(12), 3502-3510 (2019-02-28)
This work outlines a rapid novel methodology for the direct quantitation of 12 volatile aldehyde compounds related to oxidative off-flavors in wine, by measuring the combined free and hydrogen-sulfite-bound forms of each aldehyde compound, consisting of four general aldehydes, four
1,N6-etheno-2'-deoxyadenosine adducts from trans, trans-2,4-decadienal and trans-2-octenal.
V M Carvalho et al.
Advances in experimental medicine and biology, 500, 229-232 (2002-01-05)
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
J E Song et al.
Experimental & applied acarology, 76(3), 355-363 (2018-10-22)
Acaricidal activities of the active component isolated from Melissa officinalis oil and its structural analogues against Tyrophagus putrescentiae were evaluated using fumigant and contact bioassays. The structure of 3,7-dimethyl-2,6-octadienal purified from M. officinalis oil was elucidated with EI-MS, 1H- and
In-Yong Eom et al.
Analytica chimica acta, 716, 2-10 (2012-01-31)
Air in a room infested by Cimex lectularius L. (Hemiptera: Cimicidae) was sampled simultaneously by three different sampling devices including solid phase microextraction (SPME) fiber coatings, thin film microextraction (TFME) devices, and needle trap devices (NTDs) and then analyzed by
Tolgahan Kocadağlı et al.
Food & function, 3(9), 970-975 (2012-07-17)
Coffee, as a source of acrylamide, needs to be investigated in depth to understand the contribution of different precursors. This study aimed to investigate the contributions of sucrose decomposition and lipid oxidation on acrylamide formation in coffee during roasting. Coffee
Tomoyasu Taguchi et al.
Bioscience, biotechnology, and biochemistry, 77(1), 138-144 (2013-01-08)
The effects of 16 aliphatic aldehydes with 3-10 carbons on the growth and patulin production of Penicillium expansum were examined. When P. expansum spores were inoculated into apple juice broth, some alkenals, including 2-propenal, (E)-2-butenal, (E)-2-pentenal, and (E)-2-hexenal, inhibited fungal
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