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1.
Int J Cosmet Sci ; 38(2): 109-19, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25923295

RESUMO

Nowadays, the consumers around the world are increasingly focused on health and beauty. The renewed consumer interest in natural cosmetic products creates the demand for new products and reformulated others with botanical and functional ingredients. In cosmetic products, essential oils (EOs) play a major role as fragrance ingredients. They can optimize its proprieties and preservation, as well as the marketing image of the final product. Microencapsulation of EOs can protect and prevent the loss of volatile aromatic ingredients and improve the controlled release and stability of this core materials. The importance of EOs for cosmetic industry and its microencapsulation was reviewed in this study. Also a briefly introduction about the preparation of microparticles was presented. Some of the most important and usual microencapsulation techniques of EOs, as well as the conventional encapsulating agents, were discussed. Despite the fact that microencapsulation of EOs is a very promising and extremely attractive application area for cosmetic industry, further basic research needs to be carried out, for a better understanding of the biofunctional activities of microencapsulated EOs and its release modulation, as well as the effects of others cosmetic ingredients and the storage time in the microparticles properties.


Assuntos
Cosméticos , Higiene , Óleos Voláteis/administração & dosagem , Emulsões
3.
Mem. Inst. Oswaldo Cruz ; 89(2): 221-3, Apr.-Jun. 1994. ilus, tab
Artigo em Inglês | LILACS | ID: lil-155838

RESUMO

Considering the possibility that invasiveness could be a neglected factor of virulence in Vibrio fluvialis-linked enteritis, since a dysenteric form of the disease was seen in Bangladesh, we studied 12 Brazilian strains of the organism, six clinical and six environmental, to determine whether they might be able to enter into HeLa cell monolayers or would carry plasmids incidentally involved in invasiveness. Four human and two environmental isolates attached to but did not enter into the cells. Though five strains harbored plasmids,no relationship was found between the carriage of these genetic elements and adhesiveness


Assuntos
Humanos , Aderência Bacteriana , Vibrio/patogenicidade , Células HeLa/microbiologia , Diarreia/microbiologia , Plasmídeos/isolamento & purificação , Vibrio/fisiologia , Vibrio/isolamento & purificação , Virulência
4.
Mem Inst Oswaldo Cruz ; 89(2): 221-3, 1994.
Artigo em Inglês | MEDLINE | ID: mdl-7885249

RESUMO

Considering the possibility that invasiveness could be a neglected factor of virulence in Vibrio fluvialis-linked enteritis, since a dysenteric form of the disease was seen in Bangladesh, we studied 12 Brazilian strains of the organism, six clinical and six environmental, to determine whether they might be able to enter into HeLa cell monolayers or would carry plasmids incidentally involved in invasiveness. Four human and two environmental isolates attached to but did not enter into the cells. Though five strains harbored plasmids, no relationship was found between the carriage of these genetic elements and adhesiveness.


Assuntos
Aderência Bacteriana , Vibrio/patogenicidade , Diarreia/microbiologia , Células HeLa/microbiologia , Humanos , Plasmídeos/isolamento & purificação , Vibrio/isolamento & purificação , Vibrio/fisiologia , Virulência
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