Fragrances
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Allergenic Fragrances Analysis in Brazilian Perfumes by Headspace Solid Phase Microextraction and Gas Chromatography-Mass Detector (HS-SPME-GC-MS)
Perfumes are products mainly consisting of ethyl alcohol, water and fragrance. These fragrances are responsible for characterizing the pleasant and unique odor of each perfume. Among the fragrances, we highlight a group of fragrances which can cause contact allergy, leading to dermatitis. Brazilian and the European law state that when these concentrations of
J. Braz. Chem. Soc.. Publicado em: 2017-11
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2. Patch test results in children and adolescents. Study from the Santa Casa de Belo Horizonte Dermatology Clinic, Brazil, from 2003 to 2010
AbstractBACKGROUND:Patch testing is an efficient method to identify the allergen responsible for allergic contact dermatitis.OBJECTIVE:To evaluate the results of patch tests in children and adolescents comparing these two age groups' results.METHODS:Cross-sectional study to assess patch test results of 125 children and adolescents aged 1-19 years, with suspe
An. Bras. Dermatol.. Publicado em: 2015-10
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3. Observations on fragrance collection behaviour of euglossine bees (Hymenoptera, Apidae)
Male bees of the tribe Euglossini collect volatile chemicals secreted by orchids using dense patches of hair on the front tarsi. After collecting chemicals, the bee hovers while transferring these fragrances to invaginations on the hind tibiae. The fragrance collection and hovering behaviours are repeated multiple times. Here I report preliminary field obser
Rev. Bras. entomol.. Publicado em: 2015-03
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4. Poikilodermatous changes on the forearms of a woman practicing aroma-therapy: extracervical poikiloderma of Civatte?
We report the case of a 48-year-old, Caucasian female who presented with slowly progressing asymptomatic poikilodermatous changes of the extensor aspects of the forearms. She also had typical Poikiloderma of Civatte on the V of the neck and erythemato-telangiectatic rosacea of the central face. The patient had been practicing aroma-therapy for many years. Hi
An. Bras. Dermatol.. Publicado em: 2014-07
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5. Influence of the presence and type of fragrance on the sensory perception of cosmetic formulations
The aim of the present study was to evaluate the sensory assessments of identical cosmetic formulations with and without fragrance to investigate not only the acceptance but also how different fragrances affected their attributes, such as skin feel, tackiness and spreadability. Three gel and three cream formulations with and without two types of fragrance, f
Braz. arch. biol. technol.. Publicado em: 2013-04
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6. HLB value, an important parameter for the development of essential oil phytopharmaceuticals
Essential oils are used primarily as natural preservatives, flavourants and fragrances in cosmetic products. Several pharmacopeias possess monographs of plants which are good sources of essential oils, such as Brazilian Pharmacopeia, including Illicium verum Hook. f., Schisandraceae and Rosmarinus offi cinalis. Since determination of Hydrophile-Lipophile Bal
Rev. bras. farmacogn.. Publicado em: 06/11/2012
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7. De aromas e perfumes, o mercado da indústria do "cheiro"
Several flavors and fragrances (F&F) companies hold the economic leadership in the market, although not always have also the leadership in patent applications. The ranking of technological production in the fragrance area still remains with industries while scientific knowledge is equally shared between industries and academia. Contextualizing Brazil in this
Química Nova. Publicado em: 2012
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8. Aplicações sintéticas dos adutos de Morita-Baylis-Hillman em reações mediadas por paládio / Synthetic applications of the Morita-Baylis-Hillman adducts in palladium-mediated reactions
Esse trabalho descreveu o uso de adutos de Morita-Baylis-Hillman como substratos para reações mediadas por paládio. Inicialmente, desenvolvemos uma estratégia eficiente para preparar a-benzilcetoesteres a partir de adutos de Morita-Baylis-Hillman. A reação de Mizoroki-Heck foi empregada nessa estratégia e esses compostos foram obtidos em elevados rend
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/12/1969
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9. Perfumes comerciais e contratipos: o tratamento jurídico das atividades criativas / Contratipos and commercial fragrances: the legal, protection of creative activities
A presente dissertação, requisito para obtenção do título de mestre em direito internacional, no programa de pós graduação da Faculdade de Direito do Largo São Francisco (Universidade de São Paulo), através de um estudo de caso (contratipos), constata a insuficiência da sistemática tradicional de propriedade intelectual para a tutela das ativida
Publicado em: 2010
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10. Abordagem da química das fragrâncias de almíscares por estudos teóricos e espectroscópicos
Both pentadecanolide and exaltolide compounds were widely used by the perfume industry for their soft and persistent odor of musks, with high fixative power. However, once they have animal origin (customarily found in anal glands of the musk deer), their usage is controlled by high costs and, also, by environmental activist groups and by all animal lovers. A
Publicado em: 2010
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11. InvestigaÃÃo dos efeitos centrais e gastroprotetores do isopulegol em camundongos / Evaluation of the central nervous system and gastroprotective effects of isopulegol in mice.
Isopulegol is a monoterpene alcohol present in the essential oils of various plants, and has been used in the manufacture of fragrances with blossom compositions. In order to investigate its effects on animal models of CNS actions, isopulegol was administered to male Swiss mice at single doses of 25 and 50 mg/kg 30 (i.p.) or 60 min (p.o.) before the experime
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/08/2009
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12. Diversity and abundance of orchid bees (Hymenoptera: Apidae, Euglossini) in a tropical rainforest succession
Euglossine bee males are easily lured to chemical baits imitating natural fragrances gathered by bees, providing a widely applied measure for estimating the diversity and abundance of euglossines. In here, I report the composition of euglossine bees in three lowland rainforest habitats of Peru, a primary old forest, a reforested and managed forest, and a ver
Neotropical Entomology. Publicado em: 2009-02