Results 1 to 10 of about 2,487 (178)

Odor Modification in Rigid Polyethylene Waste: Impact of Different Washing on Sensory Analysis and Characterization. [PDF]

Glob Chall
Post‐consumer rigid polyethylene waste was characterized for odor‐active compounds using sensory analysis, comparative odor extract dilution analysis, and 2D‐GC‐MS/O. Twenty‐eight odorants were identified, with four reported for the first time. A direct comparison with polypropylene suggests polymer‐specific adsorption–desorption dynamics governed by ...
Belé TGA, Roosen M, Loos HM, De Meester S, Buettner A.   +4 more
europepmc   +2 more sources

Gas chromatography-olfactometry [PDF]

Journal of Separation Science, 2006
AbstractGC‐olfactometry (GC‐O) refers to the use of human assessors as a sensitive and selective detector for odour‐active compounds. The aim of this technique is to determine the odour activity of volatile compounds in a sample extract, and assign a relative importance to each compound.
Graham T Eyres
exaly   +3 more sources

Assessment of Odour Emission During the Composting Process by Using Olfactory Methods and Gas Sensor Array Measurements [PDF]

Sensors
The final stage of green waste treatment typically occurs in composting plants, where waste is biologically stabilised through the activity of microorganisms. The composting process is accompanied by the emission of volatile organic compounds responsible
Mirosław Szyłak-Szydłowski, Wojciech Kos, Rafał Tarakowski, Miłosz Tkaczyk, Piotr Borowik   +4 more
doaj   +2 more sources

Sensory Properties and Aroma Compound Profiles of Pea Protein Isolates in Relation to High Hydrostatic Pressure and High-Pressure Homogenization Treatments. [PDF]

Food Sci Nutr
Flavor profiles of untreated pea protein isolate (light green, solid line) compared to High Pressure Homogenization (HPH) treated (dark blue, dash‐dot line) and High Hydrostatic Pressure (HHP) treated pea protein isolates (dark green, dashed line). Samples were described as mainly pea‐like/bean‐like, flour‐like/cereal‐like, bitter, fatty, and sour ...
Friedrich L, Hopf C, Scheuer L, Fauquet P, Zeh G.   +4 more
europepmc   +2 more sources

A Novel Artificial Intelligence-Enabled Method for Electronic Nose Design Based on Olfactometry Data [PDF]

Sensors
Electronic nose systems are advanced technological tools that enable the objective evaluation of odors through sensor arrays mimicking the human olfactory mechanism and sophisticated data processing algorithms.
Gizem Teker, Taner Yonar, Enes Yiğit
doaj   +2 more sources

Estimation of uncertainty in olfactometry

Water Science and Technology, 2009
Estimation of uncertainty in odour measurement is essential to the interpretation of the measurement results. The fundamental procedure for the estimation of measurement uncertainty comprises the specification of the measurement process, expression of the measurement model and all influences, evaluation of the standard uncertainty of each component ...
Higuchi T
exaly   +3 more sources

Interlaboratory comparison of olfactometry in Japan

Water Science and Technology, 2004
In 2000, 2001, and 2002, interlaboratory comparison of olfactometry was carried out in order to collect basic data for the establishment of a quality control procedure and the determination of quality criteria for the triangular odour bag method. In 2000, interlaboratory comparison was conducted by using a measurement method for samples taken at smoke ...
Higuchi T
exaly   +3 more sources

Changes in the Epidemiology of Pediatric Olfactory Dysfunction Before and After COVID-19 Pandemic. [PDF]

Laryngoscope Investig Otolaryngol
ABSTRACT Background The COVID‐19 pandemic may have altered the epidemiology and clinical features of pediatric olfactory dysfunction, but data focusing on children remain limited, particularly regarding etiological changes and qualitative symptoms such as parosmia.
Kishimoto Y, Mori E, Sakurai R, Tanaka H, Nagai M, Sekine R, Tei M, Otori N.   +7 more
europepmc   +2 more sources

Meta-Analysis and Analytical Methods in Cosmetics Formulation: A Review

Cosmetics, 2023
The ever-evolving cosmetic industry requires advanced analytical techniques to explore, understand, and optimize product performance at nano, micro, and macroscopic levels. Nowadays, these insights are crucial for translating microstructure behavior into
Felipe Rico, Angela Mazabel, Greciel Egurrola, Juanita Pulido, Nelson Barrios, Ronald Marquez, Johnbrynner García   +6 more
doaj   +1 more source

Alarm Pheromone Responses Depend on Genotype, but Not on the Presence of Facultative Endosymbionts in the Pea Aphid Acyrthosiphon pisum

Insects, 2021
Aphids use an alarm pheromone, E-β farnesene (EBF), to warn conspecifics of potential danger. The antennal sensitivity and behavioural escape responses to EBF can be influenced by different factors.
Cesar Auguste Badji, Zoé Sol-Mochkovitch, Charlotte Fallais, Corentin Sochard, Jean-Christophe Simon, Yannick Outreman, Sylvia Anton   +6 more
doaj   +1 more source