Search results for "odor"
showing 10 items of 569 documents
Microbiological and technological parameters impacting the chemical composition and sensory quality of kombucha
2020
International audience; Kombucha is a beverage made from sugared tea transformed by yeasts and acetic acid bacteria. Being originally homemade, it has become an industrially produced soft drink whose quality standards are poorly defined and whose production process is still not fully controlled. Based on current knowledge in beverages, links between kombucha's chemical composition and sensorial compounds are drawn. Macromolecules create turbidity, whereas uncharacterized tea pigments derivatives participate in the color. Residual sugars bring sweetness and organic acids produced by acetic acid bacteria form its characteristic sour taste. Acetic acid is also part of its aroma profile, althou…
L’olfactilité sociale des humains : la science fluctuante d’un sens omniprésent
2019
Les chimiosensibilités permettant aux organismes d’apprécier l’innocuité du milieu s’exprimèrent les toutes premières au fil de l’évolution. Parmi elles, l’olfaction est, ontogénétiquement, l’un des sens les plus précoces (Holley, 1999). Mais cette double préséance ne lui a pas valu de privilège culturel dans les sociétés judéo-chrétiennes. Au contraire, penseurs et moralistes ont généralement déprécié ce sens. Pour élever l’humain au-dessus de l’animal, ils ont relégué les odeurs au primitif...
Thermal degradation of long-chain polyunsatured fatty acids during deodorization of fish oil
2006
International audience; Long-chain polyunsaturated fatty acids (LC-PUFA) of the n-3 series, particularly eicosapentaenoic (EPA) and docosahexaenoic (DHA) acid, have specific activities especially in the functionality of the central nervous system. Due to the occurrence of numerous methylene-interrupted ethylenic double bonds, these fatty acids are very sensitive to air (oxygen) and temperature. Non-volatile degradation products, which include polymers, cyclic fatty acid monomers (CFAM) and geometrical isomers of EPA and DHA, were evaluated in fish oil samples obtained by deodorization under vacuum of semi-refined fish oil at 180, 220 and 250 °C. Polymers are the major degradation products g…
Human neonates prefer colostrum to mature milk: Evidence for an olfactory bias toward the "initial milk"?
2021
International audience; OBJECTIVES: Colostrum is the initial milk secretion which ingestion by neonates warrants their adaptive start in life. Colostrum is accordingly expected to be attractive to newborns. The present study aims to assess whether colostrum is olfactorily attractive for 2-day-old newborns when presented against mature milk or a control. METHODS: The head-orientation of waking newborns was videotaped in three experiments pairing the odors of: (a) colostrum (sampled on postpartum day 2, not from own mother) and mature milk (sampled on average on postpartum day 32, not from own mother) (n tested newborns = 15); (b) Colostrum and control (water; n = 9); and (c) Mature milk and …
LU mācībspēku nozīmīgākie dāvinājumi LU Centrālajai bibliotēkai 20. gs. 20.-40. gados
2018
Šajā pārskatā sniegta informācija par nozīmīgākajiem LU mācībspēku dāvinājumiem LU Centrālajai bibliotēkai 1920.-1940. gados.
Contexto editorial, cultural y socio-político de la edición príncipe de la «Historia de la doncella Teodor» (Toledo: Pedro Hagenbach, 1500-1501)
2021
The material analysis of the only surviving copy of the editio princeps of the Historia de la doncella Teodor allows us to date it back to the incunabula era and to attribute its printing to Pedro Hagenbach’s workshop. The close relationship amongst Hagenbach’s workshop, the reformist project of Archbishop Cisneros, and the interests of the Catholic Monarchs sets an editorial and cultural context that supports the adaptation of Teodor to the printing press. This work perfectly agreed with the thematic and ideological guidelines for the renewal of Christian customs and values. The forceful religious and intellectual imposition of the young and learned slave, turned into a “fijadalgo” in the …
Casts, Quotes, Parodies: the Italian Reception of Fyodor Mikhailovich Dostoevsky's Work
2021
This article aims to provide a preliminary picture on the complex phenomenon of the reception of the work of F. M Dostoevsky in Italy starting from the diffusion of the first translations of the novels. Dostoevsky was not well received by the first critics and writers who criticized its style, excess morbidity and “drama”. He was considered a writer excessively related to the disturbances of the human soul, and in this regard the label of “psychologism”was used. Beyond this apparent negativity, the writers who were influenced and who admitted openly to consider Dostoevsky's not only a teacher of writing, but also an inexhaustible source of ideas and suggestions to delineate the characters o…
Long-lasting memory for an odor acquired at the mother's breast
2010
Whether neonatal odor memory can persist into toddlerhood and influence behaviors that tap processes related to cognition (attention and exploration), motivation (choice and consumption), and emotion (hedonic processing) remains under-researched. Using a quasi-experimental longitudinal design, we examined whether an odor experienced at the mother’s breast can be retained at 7 and 21 months. The prescribed prophylactic use of a camomile-scented balm defined two groups: infants exposed (CaE) or never exposed (CaNE) to camomile odor. At 7 months, exploratory responses to three similar objects differing in odor (including camomile) were analyzed. At 21 months, three tasks were used to assess to…
Mammary odor cues and pheromones: mammalian infant-directed communication about maternal state, mammae, and milk
2010
International audience; Neonatal mammals are exposed to an outstandingly powerful selective pressure at birth, and any mean to alleviate their localization effort and accelerate acceptance to orally grasp a nipple and ingest milk should have had advantageous consequences over evolutionary time. Thus, it is essential for females to display a biological interface structure that is sensorily conspicuous and executively easy for their newborns. Females' strategy to increase the conspicuousness of nipples could only exploit the newborns' most advanced and conserved sensory systems, touch and olfaction, and selection has accordingly shaped tactilely and olfactorily conspicuous mammary structures.…
Specific expression of olfactory binding protein in the aerial olfactory cavity of adult and developing Xenopus
2005
International audience