The odor threshold of 2-nitropropane (2-NP) has been characterized as not capable of providing warning that air concentrations possibly exceed acceptable guidelines. However, recent testing indicates that the odor threshold is significantly lower than previously thought. In particular, the odor threshold has been indicated by this study to be below the current TLV for 2-NP.
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http://dx.doi.org/10.1080/15298668491399532 | DOI Listing |
Food Res Int
February 2025
Institute of Food Science and Technology. Federal University of Rio Grande do Sul (UFRGS), Bento Gonçalves Avenue, 9500 Porto Alegre, RS, Brazil. Electronic address:
Botrytis cinerea is the causal agent of gray mold, which is one of the most widespread and destructive fungal diseases that compromises the productivity and quality of grapes produced throughout the world. This work aimed to verify, for the first time, the impact of unencapsulated carvacrol and encapsulated in Eudragit® nanocapsules (Eud-Carv NCs) and chia mucilage (Chia-Carv NCs) on mycelial growth and spore germination of B. cinerea.
View Article and Find Full Text PDFInt J Eat Disord
January 2025
Eating Disorders Clinical and Research Program, Massachusetts General Hospital, Boston, Massachusetts, USA.
Background: Individuals with avoidant/restrictive food intake disorder (ARFID) self-report heightened sensitivity to taste and smell, but neither phenomenon has been systematically explored in the laboratory. We hypothesized that, compared to healthy controls (HC, n = 34), children, adolescents, and adults with full/subthreshold ARFID (n = 100; ages 9 to 23 years) would self-report heightened response to taste/smell stimuli and exhibit stronger bitter taste perception and heightened smell perception in performance-based tasks, and these differences would be especially prominent in those with the ARFID-sensory sensitivity presentation.
Method: We measured self-reported sensitivity to taste/smell with the adolescent/adult sensory profile (AASP).
Eur J Neurosci
January 2025
Smell and Taste Clinic, Department of Otorhinolaryngology, Technische Universität Dresden, Dresden, Germany.
Target odorant detection in mixtures has been shown to become more difficult as the number of background odorants increases and falls below chance level in mixtures with 16 components. Our aim was to investigate target odorant detection in mixtures among healthy people and compare it between dysosmic patients and age- and gender-matched controls. Participants underwent extensive olfactory testing and performed two target odorant detection tasks.
View Article and Find Full Text PDFJ Hazard Mater
January 2025
School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China.
Moderate preoxidation is feasible for odor-producing algae treatments, usually requiring trade-offs in algal removal and integrity maintenance. However, dosing oxidants may cause internal oxidative homeostasis imbalances and secondary odorous metabolite responses, adding new trade-offs for moderate treatments. Peracetic acid (PAA)/Fe processes are promising strategies in moderate treatments and thus were applied to examine how to achieve the following three trade-offs: good algal removal, no odorant increases and no releases.
View Article and Find Full Text PDFFood Res Int
January 2025
School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China. Electronic address:
The study investigated the perceptual interaction between two types of Rose damascena essential oil and two types of Angelica dahurica root essential oil. Using gas chromatography-olfactometer (GC-O) and gas chromatography-mass spectrometer (GC-MS), 24 and 25 aromatic compounds in Rose damascena essential oil and Angelica dahurica root essential oil were identified and quantified, respectively. Based on flavor dilution (FD) values and odor activity values (OAVs), 10 important aroma compounds in Rose damascena essential oil and 6 in Angelica dahurica root essential oil were identified.
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