Search results for "ODOUR"
showing 10 items of 42 documents
The caramel flavour: impacts of the volatile and the non-volatile fraction on perception
2013
The aim of this thesis was to investigate the impact of the volatile odorant fraction and the non-volatile fraction on the perception of caramel flavour. The first step focused on the analytical characterization of the volatile odorant fraction of caramel using Gas Chromatography coupled to Olfactometry (GC/O), GC/Mass Spectrometry (GC/MS) and heart-cutting MDGC/MS/O. Results highlighted the presence of more than one hundred compounds and demonstrated the complexity of the caramel volatile fraction. The objective of the second step was to understand the contribution of odorant compounds identified to the caramel aroma typicality. Literature shows that odour intensity is not sufficient to ev…
Cross-modal interactions between taste and smell: Odour-induced saltiness enhancement depends on salt level
2011
International audience; In recent years, health concerns related to salt have led to extensive research on low-salt foods. One major remaining issue is to reduce sodium content while still providing the salty fix, to maintain food appreciation, acceptance and choice. Using well-selected odours has been proposed to compensate for sodium chloride reduction in food, due to the cross-modal interactions between odour and taste. However, interactions between taste and odour, with regards to saltiness, remain poorly investigated. Moreover, although a few studies have assessed the influences of odour and sweet supra-threshold intensity on cross-modal interactions, none focused directly on how they …
Instrumental Odour Monitoring System Classification Performance Optimization by Analysis of Different Pattern-Recognition and Feature Extraction Tech…
2020
Instrumental odour monitoring systems (IOMS) are intelligent electronic sensing tools for which the primary application is the generation of odour metrics that are indicators of odour as perceived by human observers. The quality of the odour sensor signal, the mathematical treatment of the acquired data, and the validation of the correlation of the odour metric are key topics to control in order to ensure a robust and reliable measurement. The research presents and discusses the use of different pattern recognition and feature extraction techniques in the elaboration and effectiveness of the odour classification monitoring model (OCMM). The effect of the rise, intermediate, and peak period …
Changes in nonvolatile flavours of blood and common orange fruits during cold storage.
2012
Industrial odour pollution and human health: a systematic review and meta-analysis.
2021
Abstract Objective To conduct a systematic review to evaluate the association between residential or occupational short- and long–term exposure to odour pollution from industrial sources and the health status of the exposed population. Methods The searches were conducted in Medline, EMBASE and Scopus in April 2021. Exposure to an environmental odour from industrial sources in population resident near the source or in workers was considered. We considered outcomes for which there was a biological plausibility, such as wheezing and asthma, cough, headache, nausea and vomiting (primary outcomes). We also included stress-related symptoms and novel outcomes (e.g. mood states). Risk of bias was e…
Effet d'une éducation sensorielle sur les préférences et les comportements alimentaires d'enfants en classe de cours moyen (CM).
2008
Sensory experience of a meal (or mere exposure) can interact with preferences and food behaviour. On the other hand, current campaigns of nutritional information try to modify food behaviours by making people aware of the dangers of over eating and providing guidelines for healthy eating behaviour. Nevertheless, this approach doesn't take into account the pleasure to eat. The project "EduSens" bases itself on a hedonist and sensory approach in taste education that unites exposure to food and information about food. The aim of the study was to first develop tools to evaluate the effects of this sensory education and then to use them to measure the effects of a sensory education in a school c…
Modelling of Emissions from Large Biogas Plants
2015
Głównym celem wskazanym w „Wytycznych dla rozwoju biogazowni rolniczych w Polsce w latach 2010-2020” jest budowa biogazowni rolniczych przetwarzających zasoby biomasy w odpowiednich dla gminy warunkach. W Czechach produkuje się około 6,5% energii ze źródeł odnawialnych. Biogazownie, w przeciwieństwie do elektrowni słonecznych i wiatrowych, pracują stabilnie przez cały rok. Biomasa powinna być kluczowym źródłem realizacji zobowiązań czeskich wobec UE, w ramach których przyjęto produkcję 13% energii ze źródeł odnawialnych w 2020 roku. Dotychczasowe doświadczenia z działającymi 317 biogazowniami rolniczymi wykazały, że istnieją poważne problemy z właściwym ulokowaniem nowo zaprojektowanych bio…
GC-olfactometry and odour recombination
2015
GC-olfactometry and odour recombination. 16. international symposium on olfaction and electronic nose
The odour of human milk: Its chemical variability and detection by newborns
2019
International audience; Human milk odour has for long elicited research interest with regard to its function in breastfeeding initiation. The present review aims to provide an overview of the behavioural effects of human milk odour in the human neonate, considering different types of response measures in a feeding or non-feeding context. Further, an overview of the current knowledge of odorant composition and factors influencing milk odour is provided by summarizing results from analytical studies using olfactometry, and addressing changes in milk odour due to storage, lactational stage, and maternal dietary intake of odorous substances. We finally highlight some issues for future research.