Fragrance
Mostrando 1-12 de 49 artigos, teses e dissertações.
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1. Volatile Constituents of Floral Scents from Encyclia cordigera (Kunth) Dressler and E. randii (Barb. Rodr.) Porto & Brade (Orchidaceae)
Encyclia cordigera is native from Central America tropical region, and Encyclia randii occurs at Brazilian Amazon environment domains. Floral concentrates from both Encyclia species were extracted, analyzed by gas chromatography-mass spectrometry, and identified compounds belong to terpenoids, phenylpropanoids, and fatty acid derivatives classes. Primary con
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. In vivo and in vitro Volatile Constituents of the Flowers of Xylopia aromatica by HS-SPME/GC-MS
Xylopia aromatica (Lam.) Mart. (Annonaceae) is a typical species from the Brazilian cerrado that presents medicinal properties. The plant is distinguished by its large white flowers which produce a pleasant fragrance. X. aromatica is characterized by a wide range of medicinal application. These characteristics have motivated us to investigate the flowers vol
J. Braz. Chem. Soc.. Publicado em: 2021-05
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3. IAO Systematic Review Award 2020
Abstract Background: Cosmetics are part of the daily life of the population, and their use can lead to allergic contact dermatitis. Objectives: To assess the profile of patients diagnosed with allergic contact dermatitis to cosmetics treated at a referral center for 13 years, as well as the characteristics of the clinical picture and allergens involved. M
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-12
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4. Allergic contact dermatitis to cosmetics: retrospective analysis of a population subjected to patch tests between 2004 and 2017,
Abstract Background: Cosmetics are part of the daily life of the population, and their use can lead to allergic contact dermatitis. Objectives: To assess the profile of patients diagnosed with allergic contact dermatitis to cosmetics treated at a referral center for 13 years, as well as the characteristics of the clinical picture and allergens involved. M
An. Bras. Dermatol.. Publicado em: 2020-12
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5. High rate of sensitization to Kathon CG, detected by patch tests in patients with suspected allergic contact dermatitis,
Abstract Background: Kathon CG, a combination of methylchloroisothiazolinone and methylisothiazolinone, is widely used as preservative in cosmetics, as well in household cleaning products, industrial products such as paints and glues. It has emerged as an important sensitizing agent in allergic contact dermatitis. Objectives: This study evaluated the react
An. Bras. Dermatol.. Publicado em: 2020-03
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6. Sensory and chemical evaluation of tea brews prepared with the assistance of ultrasound
RESUMO: O objetivo do estudo foi verificar a atividade sensorial e fitoquímica (polifenóis, flavonóides e cafeína) de infusões de chá preto e verde empregando o ultrassom. As infusões produzidas com a aplicação de sonicação por 2 e 1 minutos foram as mais preferidas pela equipe de avaliação sensorial. A avaliação das infusões em termos de de
Cienc. Rural. Publicado em: 07/10/2019
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7. 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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8. MODELING OF BASIL ESSENTIAL OIL EXTRACTION WITH VARIABLE DIFFUSION COEFFICIENT
ABSTRACT: Essential oils are complex mixtures of volatile compounds found at low levels in aromatic plant specific parts. Soluble in organic solvents, these oils are characterized by their fragrance and antimicrobial activity, being widely used in industries. The mathematical modeling of essential oil extraction is a relevant step in the project of industria
Eng. Agríc.. Publicado em: 2017-08
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9. Patch-test results in children and adolescents: systematic review of a 15-year period
Abstract The number of studies on patch-test results in children and adolescents has gradually increased in recent years, thus stimulating reviews. This paper is a systematic review of a 15-year period devoted to studying the issue. Variations pertaining to the number and age groups of tested children and/or adolescents, the number of subjects with atopy/ato
An. Bras. Dermatol.. Publicado em: 2016-02
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10. 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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11. 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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12. 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