Essential Oil Composition
Mostrando 25-36 de 233 artigos, teses e dissertações.
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25. Effects of two sources of Mexican oregano oil on performance, blood profile, carcass variables, and meat of broilers
ABSTRACT The current study was conducted to investigate the effects of Mexican oregano essential oil (MOO) extracts from Lippia berlandieri Schauer (LBS) and Poliomintha longiflora Gray (PLG) on performance, blood profiles, carcass variables, and meat composition of broilers at slaugther. A total of 360 one-day-old Ross broilers were randomly distributed int
R. Bras. Zootec.. Publicado em: 16/07/2018
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26. Larvicidal effect of Clinopodium macrostemum essential oil extracted by microwave-assisted hydrodistillation against Culex quinquefasciatus (Diptera: Culicidae)
Abstract INTRODUCTION: In the present study, we determined the chemical composition of Clinopodium macrostemum essential oil obtained by microwave-assisted hydrodistillation and its effect on the growth and development of Culex quinquefasciatus mosquito larvae. METHODS: The essential oil compounds were identified by gas chromatography-mass spectrometry an
Rev. Soc. Bras. Med. Trop.. Publicado em: 2018-06
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27. Colored shade nets induced changes in growth, anatomy and essential oil of Pogostemon cablin
ABSTRACT The purpose of this investigation was to determine the influence of colored shade nets on the growth, anatomy and essential oil content, yield and chemical composition of Pogostemon cablin. The plants were cultivated under full sunlight, black, blue and red nets. The harvesting was performed 5 months after planting and it was followed by the analysi
An. Acad. Bras. Ciênc.. Publicado em: 16/04/2018
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28. Chemical composition, antioxidant and biological activity of Ocotea bicolor Vattimo-Gil (LAURACEAE) essential oil
ABSTRACT The essential oil composition of the Ocotea bicolor, native plant of Brazil, was studied for the first time. The essential oil of the leaf was obtained by hydrodistillation and analyzed by GC/MS. The analytical procedure revealed a predominance of sesquiterpenes, δ-cadinene (7.39%), β-sesquiphellandrene (6.67%), β-elemene (5.41%) and α-cadinol (
Braz. J. Pharm. Sci.. Publicado em: 05/03/2018
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29. Enantiomeric Ratio Changes of Terpenes in Essential Oils from Hybrid Eucalyptus grandis × E. tereticornis and its Pure Species
Some Eucalyptus species produce oils with biological activities and the effect of their interspecific hybridization on the enantiomeric composition of terpenes has not been reported. The enantiomeric excesses of monoterpenes in the essential oil of Eucalyptus grandis × E. tereticornis and its parental taxa were determined by gas chromatography-mass spectrom
J. Braz. Chem. Soc.. Publicado em: 2018-02
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30. Chemical Composition and Antibacterial Activity of the Essential Oil of Vitex agnus-castus L. (Lamiaceae)
ABSTRACT Abnormal multiplication of oral bacteria causes dental caries and dental plaque. These diseases continue to be major public health concerns worldwide, mainly in developing countries. In this study, the chemical composition and antimicrobial activity of the essential oil of Vitex agnus-castus leaves (VAC‒EO) collected in the North of Brazil against
An. Acad. Bras. Ciênc.. Publicado em: 2017-12
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31. In vitro antiparasitic activity and chemical composition of the essential oil from Protium ovatum leaves (Burceraceae)
ABSTRACT Leishmaniasis and trypanosomiasis are globally widespread parasitic diseases which have been responsible for high mortality rates. Since drugs available for their treatment are highly hepatotoxic, nephrotoxic and cardiotoxic, adherence to therapy has been affected. Thus, the search for new, more effective and safer drugs for the treatment of these d
An. Acad. Bras. Ciênc.. Publicado em: 16/10/2017
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32. Piper gaudichaudianum Kunth: Seasonal Characterization of the Essential Oil Chemical Composition of Leaves and Reproductive Organs
ABSTRACT This study describes a comparative analysis of the essential oil (EO) chemical composition of leaves and reproductive organs (inflorescences and fruits) of Piper gaudichaudianum during the seasons of a year in order to determine the best collection time and the most suitable plant organ to obtain this extractive. The chemical composition of EO obtai
Braz. arch. biol. technol.. Publicado em: 17/08/2017
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33. Chemical composition of the leaf oil of Artabotrys jollyanus from Côte d’Ivoire
ABSTRACT One oil sample isolated from leaves of Artabotrys jollyanus Pierre, Annonaceae, from Côte d’Ivoire has been analyzed by GC(RI), GC-MS and 13C NMR. In total, thirty-seven compounds accounting for 96.9% of the relative composition have been identified. The composition of the essential oil was dominated by trans-calamenene (15.7%), α-copaene (14.8%
Rev. bras. farmacogn.. Publicado em: 2017-08
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34. Chemical composition and antibacterial activity of essential oil from leaves of Croton heliotropiifolius in different seasons of the year
ABSTRACT This paper reports the first study of the variation of the chemical composition and abundance of the essential oil of Croton heliotropiifolius, in four seasons, and the evaluation of its antibacterial activity. Essential oil obtained from leaves of C. heliotropiifolius were analyzed by GC/MS and evaluated against eight bacteria strains by broth micr
Rev. bras. farmacogn.. Publicado em: 2017-08
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35. Chemical composition, antioxidant and antibacterial activities of essential oils from leaves and flowers of Eugenia klotzschiana Berg (Myrtaceae)
ABSTRACT Many essential oils (EOs) of different plant species possess interesting antimicrobial effects on buccal bacteria and antioxidant properties. Eugenia klotzschiana Berg (pêra-do-cerrado, in Portuguese) is a species of Myrtaceae with restricted distribution in the Cerrado. The essential oils were extracted through the hydrodistillation technique usin
An. Acad. Bras. Ciênc.. Publicado em: 31/07/2017
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36. Intraspecific Variation of the Volatile Chemical Composition of Myracrodruon urundeuva Fr. Allem. ("Aroeira-do-Sertão"): Characterization of Six Chemotypes
Myracrodruon urundeuva Fr. Allem. (Anacardiaceae) is the scientific designation of "aroeira-do-sertão", a tree well dispersed through the "Caatinga", the characteristic northeastern Brazil flora. Its trunk bark decoction is used to treat cutaneous affections, urinary and respiratory diseases and as a postpartum aseptic bath. This work reports the analyses o
J. Braz. Chem. Soc.. Publicado em: 2017-05