CHIRAL ANALYSIS OF MONOTERPENES IN VOLATILE OILS FROM PROPOLIS
| Autor: | Euclésio Simionatto, Carlos Eduardo Blanco Linares, Sandro R. Giacomelli, Janaina T. Facco, Ademir F. Morel |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Limonene
Chromatography antimicrobial activity General Chemistry Propolis Antimicrobial essential oil law.invention propolis chemistry.chemical_compound chemistry law chiral phase gas chromatography enantiomeric composition Composition (visual arts) Gas chromatography Enantiomer Enantiomeric excess Essential oil |
| Zdroj: | Journal of the Chilean Chemical Society, Volume: 57, Issue: 3, Pages: 1240-1243, Published: 2012 Journal of the Chilean Chemical Society v.57 n.3 2012 SciELO Chile CONICYT Chile instacron:CONICYT |
| Popis: | The essential oils obtained by hydrodistillation from samples of propolis manufactured in three regions of Rio Grande do Sul State at Brazil, were analyzed through CG, CG-MS and chiral phase gas chromatography (CPGC). These analyses display the presence of samples with elevated essential oil purport, when compared with plants. The yields obtained were until 3.8%. The samples exhibited similar composition, with predominance of the monoterpenes α-pinene (5763%), β-pinene (12.5-30.8%) and limonene (1.5-11.2%). In chiral analysis ofthese constituents were observed modifications in the enantiomeric excess of isomers of α-pinene and limonene in relation with source location of the sample, already in the chiral analysis of β-pinene were detected only elevated excess of the enantiomer with the (-) configuration. The antimicrobial activity of the crude essential oil was assayed against five bacteria. The best result was obtained against Staphylococcus aureus. |
| Databáze: | OpenAIRE |
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