Search results for "Produit"
showing 10 items of 74 documents
Comment répondre aux besoins des seniors : travaux de recherche et initiatives
2019
National audience
Produits transformés, entre science et science-fiction
2021
En science-fiction, le futur de nos tables a souvent été mis en scène : des bouilles nutritives de Matrix aux pâtes d'insectes de Snowpiercer, ou bien aux légumes géants de Woody et les robots. Comment mangerons-nous dans le futur ? Nos goûts changeront-ils comme nos plats? Et dans l'espace, est-ce que la mayonnaise prendra sur l'ISS?
Chocolates classification according to their volatile compounds fingerprints measured by PTR-ToF-MS
2017
Dark chocolates develop several organoleptic characteristics depending on cocoa origin, cocoa variety and fabrication process. These parameters influence the chemical composition of the chocolates, and among other components volatile organic compounds (VOCs) responsible for aroma mainly determine their sensory perception. Sensory evaluation is able to discriminate chocolates with various organoleptic properties. Proton Transfer Reaction Mass Spectrometry (PTR-MS) is capable of monitoring VOCs released in foodstuffs headspace at ppb level in real time. But is PTR-MS able to discriminate chocolates as sensory analysis does? To answer this question, 192 dark chocolates produced from cocoa bean…
Handbook of fruit and vegetable flavors
2010
Acting as chemical messengers for olfactory cells, food flavor materials are organic compounds that give off a strong, typically pleasant smells. Handbook of Fruit and Vegetable Flavors explores the flavor science and technology of fruits and vegetables, spices, and oils by first introducing specific flavors and their commercialization, then detailing the technical aspects, including biology, biotechnology, chemistry, physiochemistry, processing, analysis, extraction, commodities, and requirements for application as food additives. With chapter authors representing more than ten different countries, this handy reference provides a comprehensive view of this evolving science.
Un outil sensoriel pour la mesure des préférences vis-à-vis du gras, du salé et du sucré
2012
La surconsommation d'aliments gras, salés ou sucrés est nuisible à la santé, et, même si elles sont entendues du public, les recommandations nutritionnelles visant à éviter ces comportements à risque restent trop partiellement suivies. On peut alors s’interroger sur les déterminants de ces comportements alimentaires et plus spécifiquement sur le plaisir apporté par la consommation des aliments considérés comme gras, salés ou sucrés. En effet, les matières grasses, le sucre et le sel induisent les propriétés sensorielles de l’aliment (goût, texture, palatabilité) et contribuent au plaisir lors de la consommation, parfois en contradiction avec les préoccupations nutritionnelles. Entre le plai…
Modeling small‐scale cassava starch extraction. Simulation of the reduction of water consumption through a recycling process
2010
International audience; The purpose of this study was to model the extraction unit operation of the cassava starch manufacturing process and to propose a realistic recycling simulation in order to reduce the volumes of effluents. The model was developed from reactors which are commonly used for cassava starch extraction at a household scale in Vietnam. The reactors were tested using inflow starch as a marker at the beginning of the batch process. The experimental residence time distribution (RTDexp) was calculated by the outflow of the starch concentration. Using Matlab®, the RTDexp was compared to the theoretical residence time distribution (RTDth). The dynamic model obtained was built up …
Participation of nutritional and environmental factors in aging of the retina and age-related retinopathies
2012
With advanced age, aging of the human retina can evolve into pathological forms, age-related macular degeneration (AMD) or diabetic retinopathy (DR). Meanwhile, epidemiological studies suggest that a diet rich in long-chain omega-3 polyunsaturated fatty acids (LC-PUFA) such as EPA and DHA, potentially protects against the development of AMD and insulin resistance, the main risk factor for DR. Within this context, our research objectives were to assess: 1 - the impact of endogen and environmental factors, known to trigger oxidative stress, advanced glycation end-products (AGEs) or insulin resistance, on the function and aging of the retina, and 2 - the response of the retina to a omega-3 LC-…
Explorer la biodiversité pour trouver de nouvelles souches microbiennes pour les innovations de produits alimentaires
2015
Référence : 201511122729; Entre les innovations alimentaires renforçant les propriétés sensorielles ou de santé ou améliorant le procédé, la demande de souches microbiennes nouvelles est forte. Toutefois, trouver de nouvelles souches libres de droits et efficaces n’est pas une tâche facile. Dans cet article, seront présentées des voies d’innovations pour augmenter le bénéfice sensoriel de fermentations et les activités du laboratoire international «Tropical Bioresources & Biotechnology» pour découvrir de nouvelles souches et de nouveaux procédés basés sur les fermentations traditionnelles de produits tropicaux.
Selection of probiotic strains and improving the survival and functionality of an academic strain, Bifidobacterium bifidum, by changing the redox pot…
2012
The aim of this work was to select rationally a probiotic strain by setting up a screening method as well as study and understand the impact of the redox potential (Eh) and gas bubbling on the survival of Bifidobacterium bifidum in a fermented dairy product. In a first time, we have developed selection techniques of probiotic bacteria on the criteria of viability / vitality (flow cytometry analysis) and on the criteria of functionality (antioxidant). We were able to select strains of industrial interest as well as an academic strain, Bifidobacterium bifidum.Secondly, we have studied effect of modifying redox potential by gas bubbling on the survival of B. bifidum in a fermented dairy produc…