Análise química e biológica de metabólitos voláteis de Psidium cattleyanum
Essential oils are fat-soluble substances, however volatile comprising the secondary metabolism of plants. Since they are a mixture of various organic compounds, essential oils have extensive applicability in the pharmaceutical, cosmetic and food industries. Psidium cattleyanum is popularly known as...
| Autor principal: | Souza, Elton Lincoln Peyerl de |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2020
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/9153 |
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| Resumo: |
Essential oils are fat-soluble substances, however volatile comprising the secondary metabolism of plants. Since they are a mixture of various organic compounds, essential oils have extensive applicability in the pharmaceutical, cosmetic and food industries. Psidium cattleyanum is popularly known as Cattley Guava. Phenolic compounds such as anthocyanins and flavonoids are found in the skin of this fruit and have antioxidant activity. This fact is proved, because the red guava high vitamin C content. The fruit has the β-cryptoxanthin carotenoid which converts to vitamin A and reduces the risk of degenerative diseases, prevention of cataracts, reduction of macular degeneration caused by aging and reduction of coronary heart diseases. The objective of this study is to determine the chemical composition of the essential oils of Psidium cattleyanum and their respective studies involving biological activity. For the extraction of essential oils, the hydrodistillation technique is one of the most efficient and used. The plant material is deposited on the water and essential oils having a higher vapor pressure, are swept. This technique is often performed in a laboratory using the Clevenger apparatus. Once extracted, the oil was subjected to gas chromatography equipment coupled with mass spectrometry for the characterization of the components. The biological activities was tested against parasites of Chagas´s disease (Trypanosoma Cruzi). Evaluating the composition of the essential oil extracted from the leaves of Psidium cattleyanum, 1,8-cineole had more percentage in all samples, followed by α- thujene and β-cariophyllene. The essential oil extract from leaves of Psidium cattleyanum had better performance on IC50 analysis (0,53 μg/mL) compared the esencial oil extracted from Cordia verbenacea and Hedychium coronarium. The extraction of essential oil by the method of hydrodistillation in a modified Clevenger presented efficient with yields ranging from 0,262% to 0,655% grams of dry leaf per gram of essential oil. |
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