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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
03/09/2015 |
Data da última atualização: |
22/02/2016 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
RODRIGUES, A. L.; SANQUETTA, C. R.; BRAZ, E. M. |
Afiliação: |
Aurélio Lourenço Rodrigues, Doutorando em Engenharia Florestal, UFPR; Carlos Roberto Sanquetta, UFPR; EVALDO MUNOZ BRAZ, CNPF. |
Título: |
Mortalidade e recrutamento na floresta com araucária no extremo sul paranaense. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 14., 2015, Colombo. Anais... Colombo: Embrapa Florestas, 2015. |
Páginas: |
p. 83-84 |
Série: |
(Embrapa Florestas. Documentos, 278). |
Idioma: |
Português |
Notas: |
Resumo. |
Palavras-Chave: |
Dinâmica; Floresta Ombrófila Mista; Manejo florestal. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/129047/1/Doc.-278-Braz-2.pdf
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Marc: |
LEADER 00678nam a2200193 a 4500 001 2023287 005 2016-02-22 008 2015 bl uuuu u00u1 u #d 100 1 $aRODRIGUES, A. L. 245 $aMortalidade e recrutamento na floresta com araucária no extremo sul paranaense.$h[electronic resource] 260 $aIn: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 14., 2015, Colombo. Anais... Colombo: Embrapa Florestas$c2015 300 $ap. 83-84 490 $a(Embrapa Florestas. Documentos, 278). 500 $aResumo. 653 $aDinâmica 653 $aFloresta Ombrófila Mista 653 $aManejo florestal 700 1 $aSANQUETTA, C. R. 700 1 $aBRAZ, E. M.
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Embrapa Florestas (CNPF) |
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Registro Completo
Biblioteca(s): |
Embrapa Florestas; Embrapa Uva e Vinho. |
Data corrente: |
12/03/2024 |
Data da última atualização: |
12/03/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 4 |
Autoria: |
AGUIAR, N. S. de; HANSEL, F. A.; REIS, C. A. F.; LAZZAROTTO, M.; WENDLING, I. |
Afiliação: |
NATALIA SAUDADE DE AGUIAR, UNIVERSIDADE FEDERAL DO PARANÁ; FABRICIO AUGUSTO HANSEL, CNPF; CRISTIANE APARECIDA FIORAVANTE REIS, CNPF; MARCELO LAZZAROTTO, CNPUV; IVAR WENDLING, CNPF. |
Título: |
Optimizing the Vanillin‐Acid Sulfuric method to total saponin content in leaves of yerba mate clones. |
Ano de publicação: |
2024 |
Fonte/Imprenta: |
Chemistry & Biodiversity, e202301883, p. 1-10, 2024. |
DOI: |
10.1002/cbdv.202301883 |
Idioma: |
Português |
Notas: |
Online first. |
Conteúdo: |
Yerba mate (Ilex paraguariensis) is a forest species consumed in the form of non-alcoholic beverages in South America, with applications in foods, cosmetics, and pharmaceutical industries. The species leaves are globally recognized for their important bioactive compounds, including, saponins. We adjusted the vanillin-acid sulfuric method for determining spectrophotometrically the total saponin in yerba mate leaves. Seeking to maximize the extraction of saponins from leaves, a Doehlert design combined with Response Surface Methodology (RSM) was used, considering ethanol:water ratios and ultrasound times. In addition, the same methodology was used for the analysis of times and temperatures in the vanillin-sulfuric acid reaction heating. The contents of total saponin in mature leaves were compared in four yerba mate clones. The extraction was maximized using 40 % ethanol:60 % water and 60 minutes of ultrasound assisted extraction (UAE) without heating. For the reaction conditions, 70 °C for 10 minutes heating is recommended, and UV/Vis reading from 460 to 680 nm. Using the optimized methodology, total saponin contents ranged from 28.43 to 53.09 mg g-1 in the four yerba mate clones. The significant difference in saponin contents between clones indicate great genetic diversity and potential for clones' selection and extraction of these compounds from yerba mate leaves. |
Palavras-Chave: |
Extração assistida por ultrassom; Método espectrofotométrico; Saponinas triterpênicas; Spectrophotometric method; Terpenóides; Triterpene saponins; Ultrasound assisted extraction. |
Thesagro: |
Ilex Paraguariensis. |
Thesaurus NAL: |
Terpenoids. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
Marc: |
LEADER 02341naa a2200301 a 4500 001 2162751 005 2024-03-12 008 2024 bl uuuu u00u1 u #d 024 7 $a10.1002/cbdv.202301883$2DOI 100 1 $aAGUIAR, N. S. de 245 $aOptimizing the Vanillin‐Acid Sulfuric method to total saponin content in leaves of yerba mate clones.$h[electronic resource] 260 $c2024 500 $aOnline first. 520 $aYerba mate (Ilex paraguariensis) is a forest species consumed in the form of non-alcoholic beverages in South America, with applications in foods, cosmetics, and pharmaceutical industries. The species leaves are globally recognized for their important bioactive compounds, including, saponins. We adjusted the vanillin-acid sulfuric method for determining spectrophotometrically the total saponin in yerba mate leaves. Seeking to maximize the extraction of saponins from leaves, a Doehlert design combined with Response Surface Methodology (RSM) was used, considering ethanol:water ratios and ultrasound times. In addition, the same methodology was used for the analysis of times and temperatures in the vanillin-sulfuric acid reaction heating. The contents of total saponin in mature leaves were compared in four yerba mate clones. The extraction was maximized using 40 % ethanol:60 % water and 60 minutes of ultrasound assisted extraction (UAE) without heating. For the reaction conditions, 70 °C for 10 minutes heating is recommended, and UV/Vis reading from 460 to 680 nm. Using the optimized methodology, total saponin contents ranged from 28.43 to 53.09 mg g-1 in the four yerba mate clones. The significant difference in saponin contents between clones indicate great genetic diversity and potential for clones' selection and extraction of these compounds from yerba mate leaves. 650 $aTerpenoids 650 $aIlex Paraguariensis 653 $aExtração assistida por ultrassom 653 $aMétodo espectrofotométrico 653 $aSaponinas triterpênicas 653 $aSpectrophotometric method 653 $aTerpenóides 653 $aTriterpene saponins 653 $aUltrasound assisted extraction 700 1 $aHANSEL, F. A. 700 1 $aREIS, C. A. F. 700 1 $aLAZZAROTTO, M. 700 1 $aWENDLING, I. 773 $tChemistry & Biodiversity, e202301883, p. 1-10, 2024.
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