A química fina que poderia ter sido: a extração de óleo de sassafrás e de safrol no alto e médio vale do Itajaí

Maar, Juergen Heinrich; Rosenbrock, Ligia Cleia Casas

doi:10.1590/s1678-31662012000400009

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…The higher performance of the smelling laurel oil can be explained by the chemical compound safrole, which is present in large quantities in plants of the genus Ocotea (Cansian et al, 2010;Maar and Rosenbrock, 2012). In a study with four essential oils from different plants and their larvicidal effects on Ae.…”

Section: Discussionmentioning

confidence: 99%

Use of essential oils from plants of Araripe National Forest against Aedes aegypti (Diptera: Culicidae)

Azevedo,

Ferreira,

Leandro

et al. 2023

Braz. J. Biol.

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Aedes aegypti control is achieved with chemical insecticides that can promote insecticide resistance. In the search for new forms of control, the use of botanical products is currently growing and many tests with oils have already been performed. The plant diversity of Araripe National Forest enables the study of several species against this vector. To evaluate the larvicidal effect of essential oils from plants of this forest, we used field rosemary, copaiba, bay leaf, cashew and pequi. The work was divided into three stages: all oils with the same dosage; the best oil at dosages of 0, 5, 10, 20, 50 and 75 µg/mL; and the best dosage at temperatures of 15, 20, 25, 30 and 35 °C. The oils of field rosemary, copaiba, bay leaf, cashew and pequi were good insecticides when used at dosages above 5 μg/mL. The bay leaf oil showed high larvicidal activity at all dosages tested, showing the highest efficiency at 75 μg/mL. Temperatures of 15 and 35 °C increased the susceptibility of the insect to the effect of the bay leaf oil. The essential oils of field rosemary, copaiba, bay leaf, cashew and pequi, from Araripe National Forest, applied at a dosage of 5μg/mL, showed insecticidal action, although with low efficiency

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Section: Discussionmentioning

confidence: 99%

Use of essential oils from plants of Araripe National Forest against Aedes aegypti (Diptera: Culicidae)

Azevedo,

Ferreira,

Leandro

et al. 2023

Braz. J. Biol.

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“…Mattos e Ocotea odorifera (Vell.) Rohwer consideradas como espécies de valor econômico (MAIA, 2004;MAAR;ROSENBROCK, 2012).…”

Section: Discussionunclassified

Variações Na Composição Florística Em Floresta Estacional Semidecidual Em Curvelo-Mg

Silva

Costa

Vieira

et al. 2019

NAT

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O objetivo desse estudo foi avaliar as mudanças na composição florística em um fragmento de Floresta Estacional Semidecidual. No primeiro inventário realizado em 2011 foram alocadas 25 parcelas de 10 ×40 m. Foram mensurados todos os indivíduos vivos com diâmetro a altura do peito ≥ 5cm. O segundo inventário foi realizado em 2015, utilizando-se os mesmos critérios do inventário anterior, assim, foram incorporados os novos indivíduos (recrutas) que atingiram o diâmetro mínimo de inclusão. O correram mudanças na composição florística, a mortalidade dos indivíduos foi superior ao recrutamento, houve perda de cinco espécies e incremento de duas espécies. O número de espécies e a densidade dos indivíduos variaram com o tempo. As espécies que desapareceram eram representadas por poucos indivíduos. A perda de espécies refletiu no índice de diversidade de Shannon (H’) e equabilidade de Pielou, (H’passou de 4,05 para 3,99 e equabilidade de Pielou J’ de 0,83 para 0,82), no primeiro e segundo inventário respectivamente, mesmo assim, os valores apontam para uma diversidade florística elevada. As mudanças na composição florística não foram significativas, a perda de espécies teve relação com as menos representativas em número de indivíduos, entre os inventários a floresta se manteve estável.Palavras-chave: mortalidade, recrutamento, sucessão ecológica. VARIATIONS IN THE FLORISTIC COMPOSITION IN SEASONAL SEMIDECIDAL FORESTS IN CURVELO-MG ABSTRACT: The objective of this study was to evaluate the changes in floristic composition in a fragment of Seasonal Semideciduous Forest. In the first inventory carried out in 2011, 25 plots of 10 × 40m were allocated. All living individuals with a breast height diameter ≥5 cmwere measured. The second inventory was carried out in 2015, using the same criteria of the previous inventory, thus, were incorporated the new individuals (recruits) that reached the minimum diameter of inclusion. The floristic composition changes, the mortality of the individuals was superior to the recruitment, there were loss of five species and increase of two species. The number of species and the density of individuals varied over time. The species that disappeared were represented by few individuals. The loss of species reflected in the diversity index of Shannon (H ') and Pielou equability, (H' went from 4.05 to 3.99 and Pielou J 'equability from 0.83 to 0.82), in the first and second inventory respectively, even so, the values point to a high floristic diversity. The changes in floristic composition were not significant, the loss of species was related to the less representative in number of individuals, among the inventories the forest remained stable.Keywords: mortality, recruitment, ecological succession.

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Headspace solid-phase microextraction - gas chromatography - mass spectrometry qualitative screening method for active compounds, adulterants and impurities in ecstasy tablets seized in Northern Santa Catarina State, Brazil

Nicolodi,

Slominski,

Parabocz

et al. 2024

Forensic Science International

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A química fina que poderia ter sido: a extração de óleo de sassafrás e de safrol no alto e médio vale do Itajaí

Cited by 6 publications

References 3 publications

Use of essential oils from plants of Araripe National Forest against Aedes aegypti (Diptera: Culicidae)

Use of essential oils from plants of Araripe National Forest against Aedes aegypti (Diptera: Culicidae)

Variações Na Composição Florística Em Floresta Estacional Semidecidual Em Curvelo-Mg

Headspace solid-phase microextraction - gas chromatography - mass spectrometry qualitative screening method for active compounds, adulterants and impurities in ecstasy tablets seized in Northern Santa Catarina State, Brazil

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