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1. Predicting VLE and Odor Intensity of Mixtures Containing Fragrances with COSMO-SAC

Author:
Xavier, Vanessa B.; Staudt, Paula B.; de P. Soares, Rafael
Source:
Industrial & engineering chemistry process design and development 2020 v.59 no.5 pp. 2145-2154
ISSN:
1520-5045
Subject:
smell,   etc   ; hydrogen bonding; models; odors; prediction; vapors;     Show all 6 Subjects
Abstract:
... In this study, vapor–liquid equilibria (VLE) of binary, ternary, and quaternary systems containing fragrances were predicted using COSMO-SAC. A model variant including multiple energies for the description of different hydrogen bonds (alcohol–alcohol, alcohol–ketone, alcohol–ether) was used. Based on equilibrium vapor compositions, odor intensity, and character of fragrance mixtures were calculate ...
DOI:
10.1021/acs.iecr.9b05474

2. Characterization of the key odorants contributing to retronasal olfaction during bread consumption

Author:
Pu, Dandan; Duan, Wen; Huang, Yan; Zhang, Yuyu; Sun, Baoguo; Ren, Fazheng; Zhang, Huiying; Chen, Haitao; He, Jinna; Tang, Yizhuang
Source:
Food chemistry 2020 v.318 pp. 126520
ISSN:
0308-8146
Subject:
smell,   etc   ; acetoin; breads; mouth; odor compounds; odors; spectroscopy;     Show all 7 Subjects
Abstract:
... Gas chromatography–ion mobility spectrometry (GC–IMS) and dynamic quantitative descriptive analysis (D-QDA) were combined to explore the aroma release and perception from the retronasal cavity during bread consumption. D-QDA results elucidated that the sweet, creamy, and roasty notes were the most active attributes during oral processing. The final stage of oral processing had the most complicated ...
DOI:
10.1016/j.foodchem.2020.126520

3. The relationship between sensory sensitivity, food fussiness and food preferences in children with neurodevelopmental disorders

Author:
Smith, Bobbie; Rogers, Samantha L.; Blissett, Jacqueline; Ludlow, Amanda K.
Source:
Appetite 2020 v.150 pp. 104643
ISSN:
0195-6663
Subject:
smell,   etc   ; autism; caregivers; children; comorbidity; food choices; fruits; taste;     Show all 8 Subjects
Abstract:
... Heightened sensitivity to sensory information has been associated with food fussiness in both atypical and typical development. Despite food fussiness and sensory dysfunction being reported as common concerns for children with neurodevelopmental disorders, the relationship that exists between them, and whether they differ between disorders, has yet to be established. The current study aimed to exa ...
DOI:
10.1016/j.appet.2020.104643

4. What Makes a Discovery Successful? The Story of Linda Buck and the Olfactory Receptors

Author:
Barwich, Ann-Sophie
Source:
Cell 2020 v.181 no.4 pp. 749-753
ISSN:
0092-8674
Subject:
smell,   etc   ; G-protein coupled receptors; Nobel Prize; olfactory receptors;     Show all 4 Subjects
Abstract:
... In 1991, Buck and Axel published a landmark study in Cell for work that was awarded the 2004 Nobel Prize. The identification of the olfactory receptors as the largest family of GPCRs catapulted olfaction into mainstream neurobiology. This BenchMark revisits Buck’s experimental innovation and its surprising success at the time. ...
DOI:
10.1016/j.cell.2020.04.040

5. A wake-up call for sleepy lizards: the olfactory-driven response of Tiliqua rugosa (Reptilia: Squamata: Sauria) to smoke and its implications for fire avoidance behavior

Author:
Mendyk, Robert W.; Weisse, Adam; Fullerton, Will
Source:
Journal of ethology 2020 v.38 no.2 pp. 161-166
ISSN:
0289-0771
Subject:
smell,   etc   ; Tiliqua; avoidance behavior; fires; landscapes; lizards; smoke; temperature;     Show all 8 Subjects
Abstract:
... Many reptiles occur in landscapes that are prone to fire, yet limited information is available on the cues these species use to detect approaching fires or their immediate and preemptive behavioral responses to fire stimuli. Here, we describe the behavioral response of ten captive sleepy lizards (Tiliqua rugosa) that were inadvertently exposed to light smoke. Proportionately, significantly more in ...
DOI:
10.1007/s10164-019-00628-z

6. Changes in olfactory function after immersive exposure to odorants

Author:
Mahmut, Mehmet K.; Uecker, Florian C.; Göktas, Önder; Georgsdorf, Wolfgang; Oleszkiewicz, Anna; Hummel, Thomas
Source:
Journal of sensory studies 2020 v.35 no.2 pp. e12559
ISSN:
0887-8250
Subject:
smell,   etc   ; exposure duration; odor compounds; odors; olfactory disorders; patients;     Show all 6 Subjects
Abstract:
... Sniffing four different odorants, bi‐daily, for at least 3 months can improve olfactory function. The aim of the current study was to examine whether a relatively short (2 week) exposure period, an immersive exposure to a large number of diverse odorants can improve olfactory function. Twenty‐five patients with various olfactory dysfunctions were exposed to 72 different odorants dispersed into an ...
DOI:
10.1111/joss.12559

7. Retronasal Habituation: Characterization and Impact on Flavor Perception Using Time-Intensity

Author:
Pellegrino, Robert; Atchley, Addison; Ali, Simrah; Shingleton, Joel; Luckett, Curtis R.
Source:
Chemosensory perception 2020 v.13 no.1 pp. 1-10
ISSN:
1936-5802
Subject:
smell,   etc   ; beverages; citric acid; flavor; habituation; humans; odors; oils; sucrose;     Show all 9 Subjects
Abstract:
... INTRODUCTION: Olfactory habituation results from prolonged exposure to an odor, leading to perceptual changes defined by several characteristics. To date, human habituation research has focused on orthonasal olfaction which is perceived externally while ignoring internal routes of odor perception related to flavor. In our study, we conducted two experiments to characterize retronasal olfactory hab ...
DOI:
10.1007/s12078-018-9254-x

8. Do lizards (Podarcis siculus) react to whip snake (Hierophis viridiflavus) scents? A comparative test on odour stimuli recognition

Author:
Cerini, Francesco; Mattei, Giacomo; Luiselli, Luca; Vignoli, Leonardo
ISSN:
0005-7959
Subject:
smell,   etc   ; Podarcis; antipredatory behavior; lizards; odors; snakes; tongue; whipping;     Show all 8 Subjects
Abstract:
... We tested the ability in the ruin lizard (Podarcis siculus) to discriminate between odour of a predator (the whip snake Hierophis viridiflavus) and those from harmless sources. We analysed two lizard populations: one (PP) predated by snakes and another (PNP) where no snakes occur. We tested the rate of tongue flick directed to cotton-tips impregnated with odours, and the rate of tongue flick, the ...
DOI:
10.1163/1568539X-bja10003

9. How Differences in Ratings of Odors and Odor Labels Are Associated with Identification Mechanisms

Author:
Kaeppler, Kathrin
Source:
Chemosensory perception 2019 v.12 no.1 pp. 18-31
ISSN:
1936-5802
Subject:
smell,   etc   ; accuracy; odors; perceptions (cognitive);     Show all 4 Subjects
Abstract:
... INTRODUCTION: Odor perception is biased by verbal–semantic processes when cues on an odor’s source are readily available from the context. At the same time, olfaction has been characterized as basically sensation driven when this information is absent. In the present study, we examined whether language effects occur when verbal cues are absent and how expectations about an odor’s identity shape od ...
DOI:
10.1007/s12078-018-9247-9

10. Achieving Olfactory Expertise: Training for Transfer in Odor Identification

Author:
Morquecho-Campos, Paulina; Larsson, Maria; Boesveldt, Sanne; Olofsson, Jonas K
Source:
Chemical senses 2019 v.44 no.3 pp. 197-203
ISSN:
1464-3553
Subject:
smell,   etc   ; humans; learning; odors; people;     Show all 5 Subjects
Abstract:
... Human olfactory function requires the identification of everyday odors. A characteristic feature of olfaction is that most people find it hard to identify and name common odors, and when odors are presented simultaneously in mixtures, performance is even further compromised. Few studies have systematically assessed how training might enhance identification of single odors and mixtures. This study ...
DOI:
10.1093/chemse/bjz007

11. Participation in residential organic waste diversion programs: Motivators and optimizing educational messaging

Author:
Pickering, Gary J.; Pickering, Hannah M.G.; Northcotte, Ashley; Habermebl, Catherine
Source:
Resources, conservation, and recycling 2020 v.158 pp. 104807
ISSN:
0921-3449
Subject:
smell,   etc   ; climate change; ecosystem services; education; environmental factors; greenhouse gas emissions; information sources; organic wastes; Canada;     Show all 9 Subjects
Abstract:
... Participation in residential organic-waste-diversion-programs (OWDP) represents an individual-level behaviour with significant environmental benefits, including lowering greenhouse gas emissions. This study of 2621 Niagara, Canada, residents sought to understand the attitudinal and sociodemographic drivers of participation and non-participation in OWDP. Additionally, we examined the impact of mess ...
DOI:
10.1016/j.resconrec.2020.104807

12. Influences of sensory attribute intensity, emotional responses, and non-sensory factors on purchase intent toward mixed-vegetable juice products under informed tasting condition

Author:
Samant, Shilpa S.; Seo, Han-Seok
Source:
Food research international 2020 v.132 pp. 109095
ISSN:
0963-9969
Subject:
smell,   etc   ; adults; autonomic nervous system; bitterness; consumer preferences; emotions; models; prediction; product labeling; questionnaires; vegetable juices;     Show all 11 Subjects
Abstract:
... Product-related sensory and non-sensory cues have been studied in the past to understand purchase behavior among consumers. However, there has been little research related to integrating emotional responses with such cues to achieve better prediction of consumer purchase behavior. This study aimed to determine the impacts of sensory attribute intensities (SAI), non-sensory factors (NSF), and emoti ...
DOI:
10.1016/j.foodres.2020.109095

13. The functional nasal anatomy of the pike, Esox lucius L.

Author:
Garwood, Russell J.; Behnsen, Julia; Ramsey, Andrew T.; Haysom, Harriet K.; Dalby, Luke J.; Quilter, Samuel K.; Maclaine, James S.; Wang, Zhijin; Cox, Jonathan P.L.
Source:
Comparative biochemistry and physiology 2020 v.244 pp. 110688
ISSN:
1095-6433
Subject:
smell,   etc   ; Esox lucius; dyes; fluid mechanics; micro-computed tomography; models; nose; odor compounds; pike; static pressure;     Show all 10 Subjects
Abstract:
... Olfactory flow in fishes is a little-explored area of fundamental and applied importance. We investigated olfactory flow in the pike, Esox lucius, because it has an apparently simple and rigid nasal region. We characterised olfactory flow by dye visualisation and computational fluid dynamics, using models derived from X-ray micro-computed tomography scans of two preserved specimens. An external cu ...
DOI:
10.1016/j.cbpa.2020.110688

14. Decreasing prevalence of specific anosmia to non-steroid odorants from childhood to adolescence

Author:
Zou, Lai-Quan; Vogt, Olivia; Schriever, Valentin A.; Croy, Ilona; Schaal, Benoist; Hummel, Thomas
Source:
Physiology & behavior 2020 v.218 pp. 112833
ISSN:
0031-9384
Subject:
smell,   etc   ; adolescence; adolescents; boys; childhood; children; detection limit; loci; molecular weight; odor compounds; olfactory receptors;     Show all 11 Subjects
Abstract:
... Specific anosmia is defined as the inability to detect a particular odorant, despite a normal olfactory function. Previous studies reported sex-related difference in detection threshold to steroid odorants, like androstenone or androstadienone during adolescence, and boys showed an increased detection threshold with age. However, such investigations have not been performed for non-steroid odorants ...
DOI:
10.1016/j.physbeh.2020.112833

15. Distribution and physiological effect of enterin neuropeptides in the olfactory centers of the terrestrial slug Limax

Author:
Matsuo, Ryota; Kobayashi, Suguru; Furuta, Arisa; Osugi, Tomohiro; Takahashi, Toshio; Satake, Honoo; Matsuo, Yuko
Source:
Journal of comparative physiology 2020 v.206 no.3 pp. 401-418
ISSN:
0340-7594
Subject:
smell,   etc   ; Aplysia; Limax; central nervous system; electrophysiology; ganglia; interneurons; memory; neuropeptides; slugs;     Show all 10 Subjects
Abstract:
... In gastropods, the function of neuropeptides has been studied primarily in the peripheral motor systems. Their functional roles in the central nervous system have received less attention. The procerebrum, the secondary olfactory center of the terrestrial slug Limax, consists of several hundred thousand interneurons, and plays a pivotal role in olfactory learning and memory. In the present study, w ...
DOI:
10.1007/s00359-020-01400-2

16. Not Just from Blood: Mosquito Nutrient Acquisition from Nectar Sources

Author:
Barredo, Elina; DeGennaro, Matthew
Source:
Trends in parasitology 2020 v.36 no.5 pp. 473-484
ISSN:
1471-4922
Subject:
smell,   etc   ; Culicidae; blood; diet; energy; females; hosts; humans; males; nectar; sugars; taste; traps; vision;     Show all 14 Subjects
Abstract:
... Anthropophilic female mosquitoes are well known for their strong attraction to human hosts, but plant nectar is a common energy source in their diets. When sugar sources are scarce, female mosquitoes of some species can compensate by taking larger and more frequent blood meals. Male mosquitoes are exclusively dependent on plant nectar or alternative sugar sources. Plant preference is likely driven ...
DOI:
10.1016/j.pt.2020.02.003

17. Rainbow trout (Oncorhynchus mykiss) chemosensory detection of and reactions to copper nanoparticles and copper ions

Author:
Razmara, Parastoo; Sharpe, Justin; Pyle, Gregory G.
Source:
Environmental pollution 2020 v.260 pp. 113925
ISSN:
0269-7491
Subject:
smell,   etc   ; Oncorhynchus mykiss; copper; copper nanoparticles; detection limit; fish; olfactory perception; sensory neurons; taurocholic acid; toxicity;     Show all 10 Subjects
Abstract:
... Copper is known to interfere with fish olfaction. Although the chemosensory detection and olfactory toxicity of copper ions (Cu²⁺) has been heavily studied in fish, the olfactory-driven detection of copper nanoparticles (CuNPs)—a rapidly emerging contaminant to aquatic systems—remains largely unknown. This study aimed to investigate the olfactory response of rainbow trout to equitoxic concentratio ...
DOI:
10.1016/j.envpol.2020.113925

18. Association between human olfactory performance and ability to detect single compounds in complex chemical mixtures.

Author:
Sollai, Giorgia; Tomassini Barbarossa, Iole; Usai, Paolo; Hummel, Thomas; Crnjar, Roberto
Source:
Physiology & behavior 2020 v.217 pp. 112820
ISSN:
0031-9384
Subject:
smell,   etc   ; bananas; blindness; flavor; gas chromatography-mass spectrometry; headspace analysis; humans; odor compounds; odors; olfactometry;     Show all 10 Subjects
Abstract:
... Humans can accurately discern thousands of odorants, although there is a considerable inter-individual variability. Individuals can be classified as normosmic, hyposmic or anosmic, depending on their olfactory sensitivity or blindness. In this research we studied the olfactory sensitivity to banana head-space as a complex odor mixture in a group of 53 subjects classified for their olfactory status ...
DOI:
10.1016/j.physbeh.2020.112820

19. Cultural determinants of food attitudes in anosmic patients

Author:
Pellegrino, Robert; Hummel, Thomas; Emrich, Rosa; Chandra, Rakesh; Turner, Justin; Trone, Timothy; Dorminy, Cindy; Luckett, Curtis R.
Source:
Appetite 2020 v.147 pp. 104563
ISSN:
0195-6663
Subject:
smell,   etc   ; attitudes and opinions; flavor; food choices; foods; odors; patients; surveys; Germany; United States;     Show all 10 Subjects
Abstract:
... The decrease in food enjoyment is a major factor why patients suffer from depression when having anosmia, or total loss of smell. While we have some knowledge about how food preferences and attitudes change with dysosmia, these findings are limited because other factors such as culture are not factored in. It is likely that the culture in which an anosmic patient identifies with will influence how ...
DOI:
10.1016/j.appet.2019.104563

20. Awareness of Olfactory Dysfunction in Subjective Cognitive Decline, Mild Cognitive Decline, and Alzheimer’s Disease

Author:
Tahmasebi, R.; Zehetmayer, S.; Stögmann, E.; Lehrner, Johann
Source:
Chemosensory perception 2020 v.13 no.1 pp. 59-70
ISSN:
1936-5802
Subject:
smell,   etc   ; Alzheimer disease; brain; cognitive disorders; elderly; males; memory; mental depression; odors; olfactory disorders; patients;     Show all 11 Subjects
Abstract:
... INTRODUCTION: Hyposmia and metacognitive errors are related to aging, depression, male gender, and cognitive decline. The current study investigated the awareness of olfactory dysfunction in subjective cognitive decline (SCD), mild cognitive impairment (MCI), and Alzheimer’s disease (AD), as well as the influence of additional factors. METHODS: A sample of 641 patients, including controls, SCD, no ...
DOI:
10.1007/s12078-019-09267-7