Óleo essencial de citronela : avaliação do seu potencial como repelente veiculado em uma loção cremosa

• Autor(a) principal: Carneiro, Willian Vieira
• Data de Publicação: 2016
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UFPB
• Texto Completo: https://repositorio.ufpb.br/jspui/handle/123456789/1013
• topic: CNPQ:: Ciências da Saúde: Farmácia; Óleo de citronela; Geraniol,; Citronelal; Índice de Repelência

The citronella grass (Cymbopogon winterianus). It belongs to the family Poaceae, subfamily Panicoideae, and originated from Ceylon and India. It has in its composition essential oil with high content of geraniol and citronellal. We evaluated the potential repellency two citronella - based creams, and chemical composition of the essential oil of Citronella (Cymbopogon winterianus). The repellency potential of the two cream samples was assessed by the presence of mosquitoes in plastic bottle crates. The cage co ntaining the cream made by means of the extracted oil showed a more favorable outcome compared to cream made from the supplied oil HOMEOVITAE company. The oil was extracted by means of a distiller and analysis of chemical constituents of samples was perfor med on a gas chromatograph (Gas Chromatography coupled to Mass Spectrometer: Model: GCMS - QP2010 Ultra | Brand: Shimadzu) coupled with a mass detector ) in triplicate. In the composition of the volatile essential oil of citronella obtained by extracting the major compounds were - citronellal (32.74%), geraniol (28.87%), citronellol (9.59%), elemol (7.42% ) CADIN - 4 - in - 10 - ol (2.12%), geraniolacetate (1.99%), limonene (1.97%), cadinene delta (1.85%), geranial (1.00%) and other compounds with an area less than 1 %. Compared with the extracted oil, provided oil HOMEOVITAE company presented in its composition the major compounds the 6 - octenal, 3,7 - dimethyl (17.50%), geraniol (12.27%), Citroneleol (10.82 %) Limonene (6.19%), elemol (4.98%), 2,6 - octadiene, 2,6 - dimethy l (4.98%), Cdine delta (3.94%), Ciclohexane (3, 82%), CADIN - 4 - in - 10 - ol (2.59%), gamma cadinene (2.15%), isopulegol (1.98%) Allyl - 6 - methoxyphenol (1.68%), Octadien - 3 - ol, 3,7 - dimethyl (1.57%), alpha - muurolene (1.56%), Naphthalene (1.56%). For the formulatio n with citronella oil extracted at 5%, a larger quantity found geraniol and citronellal compared to the formulation prepared with the oil supplied HOMEOVITAE now also to 5%. The repellent rate was made based on the attraction cage containing juice, ie, the cage containing only the juice was used as a control to find out the percentage of each repellency cage. To the cage containing only the juice attractive, we had a quantity of 42 mosquitoes. For the analysis presented a second amount of 28.57% mosquito re pellency and its rate was 71.43%. For the analysis of the third cage, with the formulation containing the extracted oil showed an amount of 9.48% of mosquitoes, showing a repellency rate of 90.52%. For the fourth and final bottle, that a formulation contai ning the oil supplied by HOMEVITAE, lodged an amount of 23.81% in mosquito cage, providing a repellency rate of 76.52%. We can conclude, that the words conveying oil extracted from 8 citronella had a more significant repellency rate than the other formulatio n containing this oil provided by HOMEOVITAE company. And can thus be applied to the skin of children and adults to ward off mosquitoes in a natur