Fragrances
Mostrando 13-24 de 24 artigos, teses e dissertações.
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13. Database of the Amazon aromatic plants and their essential oils
The aromatic flora of the Amazon has been inventoried for 30 years. In this sense, were made over 500 field trips to collect over 2500 plants and to obtain more than 2000 essential oils and aroma concentrates, all of them submitted to GC and GC-MS. This work led to the creation of a database for the aromatic plants of the Amazon, which catalogs general infor
Quím. Nova. Publicado em: 2009
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14. Substantivity study of the fragrance on the skin in function of menstrual cycle / Estudo da substantividade de uma composição aromática na pele em função do ciclo menstrual
The Substantivity study of the aromatic composition/fragrance on the skin in function of menstrual cycle is the big issue because of the scientific literature says, with no significant conclusions, which the sex hormones demonstrate wide physiologic effects in the skin and in the olfactory perception, particularly, in the ovulatory and luteal phases versus o
Publicado em: 2009
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15. Avaliação de fragrancia em detergente em po por cromatografia gasosa e metodos quimiometricos / Evaluation of fragrance in powder detergent by gas chromatography and chemometrics
Fragrância é uma mistura de moléculas orgânicas como ésteres, cetonas, aldeídos, hidrocarbonetos, alcoóis, entre outras, tendo como fontes substâncias de origem natural ou sintética, que quando combinadas em proporções harmônicas conferem uma característica odorífera ímpar em um perfume ou em um produto perfumado. Considerando essa caracterís
Publicado em: 2009
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16. Valores, benefícios e atributos percebidos pelas consumidoras de perfumes de luxo : uma análise por meio do modelo de cadeias meios-fim
The main objective of this study is to analyze the associative relation between values, benefits and attributes perceived by the consumers of luxury fragrances living in Curitiba (PR). For this purpose the methodology used was the Means-and-Chain Model proposed by Gutman (1982) developed through the Association Pattern Technique (APT). In order to enhance th
Publicado em: 2007
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17. Production of aromas and fragrances through microbial oxidation of monoterpenes
Aromas and fragrances can be obtained through the microbial oxidation of monoterpenes. Many microorganisms can be used to carry out extremely specific conversions using substrates of low commercial value. However, for many species, these substrates are highly toxic, consequently inhibiting their metabolism. In this work, the conversion ability of Aspergillus
Brazilian Journal of Chemical Engineering. Publicado em: 2006-09
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18. Estudo de fragrancias amadeiradas da Amazonia / Study on Amazon woody fragrances
O trabalho apresenta uma breve descrição do mercado mundial de óleos essenciais dentro da indústria de Aromas e Fragrâncias (A&F). Como será explicitado, os produtos oriundos da flora Brasileira são poucos e estão no mercado há mais de 50 anos. Isto é, apesar de contarmos com uma grande biodiversidade, o número de inovações para o mercado de A&F
Publicado em: 2005
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19. Estudo da sintese e hidrolise de acetato de etila em fase gasosa catalisada por enzimas suportadas
Enzymes supported in a solid phase catalyzing reactions with substrates and products in gaseous phase constitute a recent progress in the biotechnology. It has technological applications that include: toxic gas remediation, biosensors and synthesis of pharmaceutical, fragrances and aromas for the food industry and cosmetics. This work presents, the experimen
Publicado em: 2002
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20. Diversidade de Euglossinae (Hymenoptera, Apidae) em dois fragmentos de Mata Atlântica localizados na região urbana de João Pessoa, Paraíba, Brasil
The use of fragrances to attract males of Euglossinae bees has been an important tool to increase the knowledge of the group. In the Northeastern of Brazil, studies on euglossine bees are still uncommon, mainly in urban areas. The goals of this study are to identify the Euglossinae species composition, to know the diversity and the community structure of Eug
Revista Brasileira de Zoologia. Publicado em: 2001-09
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21. A contribuição da quimica para o estudo de Orchidaceae e seus polinizadores
The investigation of the Orchidaceae pollination is the aim of this work. At first the floral fragrance of five species were studied: Stanhopea lietzeii, Stanhopea insignis, Polystachya estrellensis, Psilochilus modestus and Epidendrum secundum. The fragrances of these species are mixtures of monoterpenoids, sesquiterpenoids, and aromatic compounds and fatty
Publicado em: 2000
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22. Rose Scent: Genomics Approach to Discovering Novel Floral Fragrance–Related GenesW⃞
For centuries, rose has been the most important crop in the floriculture industry; its economic importance also lies in the use of its petals as a source of natural fragrances. Here, we used genomics approaches to identify novel scent-related genes, using rose flowers from tetraploid scented and nonscented cultivars. An annotated petal EST database of ∼210
American Society of Plant Biologists.
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23. Mortality among flavour and fragrance chemical plant workers in the United States.
Vital status on 1 January 1981 was determined for a cohort of 1412 white men employed in a flavour and fragrance chemical plant between 1945 and 1965 in order to investigate the risks from fatal diseases among men exposed to multiple chemicals in the manufacture of fragrances, flavours, aroma chemicals, and other organic substances. Cause specific standardis
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24. Use of cyclodextrins as a cosmetic delivery system for fragrance materials: Linalool and benzyl acetate
The aim of this study was to increase the stability and water solubility of fragrance materials, to provide controlled release of these compounds, and to convert these substances from liquid to powder form by preparing their inclusion complexes with cyclodextrins (CDs). For this purpose, linalool and benzyl acetate were chosen as the fragrance materials. The
Springer-Verlag.