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Registro Completo |
Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
24/03/2020 |
Data da última atualização: |
09/06/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
DUTRA, L. M.; SANTOS, A. D. da C.; LOURENÇO, A. V. F.; NAGATA, N.; HEIDEN, G.; CAMPOS, F. R.; BARISON, A. |
Afiliação: |
LIVIA MACEDO DUTRA; ALAN DIEGO DA CONCEIÇÃO SANTOS; ALLAN VINICIUS FELIX LOURENÇO; NOEMI NAGATA; GUSTAVO HEIDEN, CPACT; FRANCINETE RAMOS CAMPOS; ANDERSSON BARISON. |
Título: |
1H HR-MAS NMR and chemometric methods for discrimination and classification of Baccharis (Asteraceae): A proposal for quality control of Baccharis trimera. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Journal of Pharmaceutical and Biomedical Analysis, v. 184, 113200, 2020. |
ISSN: |
0731-7085 |
DOI: |
https://doi.org/10.1016/j.jpba.2020.113200 |
Idioma: |
Inglês |
Conteúdo: |
Baccharis trimera is a species recognized by health agencies and recommended by the Brazilian Pharmacopoeia by having medicinal properties. In this work, HR-MAS NMR spectroscopy combined with chemometric tools, such as Principal Components Analysis (PCA), Partial Least Squares Discriminant Analysis (PLS-DA) and Soft Independent Modeling by Class Analogy (SIMCA), were used to evaluate the quality control and authenticity of commercial samples of Baccharis, as well as to discriminate B. trimera samples from other species of the Caulopterae section (B. articulata, B. trimera, B. junciformis, B. milleflora, and B. myriocephala). The high morphological similarity of these species makes it difficult for their identifications and discriminations, even by taxonomists. Different PCA pre-processing (autoscaling, Pareto scaling, and mean centering) allowed to discriminate B. trimera and B. myriocephala from the other species, mainly due to the presence of carquejyl acetate, indicated their chemical similarity. The 1H HR-MAS NMR spectral profile offers the possibility of tracking not only the chemical markers, such as the presence of carquejyl acetate, which can also be helpful in the B. trimera authentication/identification. The application of classification methods in standard samples revealed that PLS-DA models showed better performance on the calibration and validation sets than SIMCA model. However, PLS-DA and SIMCA applied to commercial samples showed that none ofthe commercial samples were classified as B. trimera, which suggested the lack of strict quality control regarding these products. The methodology developed in the present work might contribute to chemotaxonomy of the genus Baccharis. MenosBaccharis trimera is a species recognized by health agencies and recommended by the Brazilian Pharmacopoeia by having medicinal properties. In this work, HR-MAS NMR spectroscopy combined with chemometric tools, such as Principal Components Analysis (PCA), Partial Least Squares Discriminant Analysis (PLS-DA) and Soft Independent Modeling by Class Analogy (SIMCA), were used to evaluate the quality control and authenticity of commercial samples of Baccharis, as well as to discriminate B. trimera samples from other species of the Caulopterae section (B. articulata, B. trimera, B. junciformis, B. milleflora, and B. myriocephala). The high morphological similarity of these species makes it difficult for their identifications and discriminations, even by taxonomists. Different PCA pre-processing (autoscaling, Pareto scaling, and mean centering) allowed to discriminate B. trimera and B. myriocephala from the other species, mainly due to the presence of carquejyl acetate, indicated their chemical similarity. The 1H HR-MAS NMR spectral profile offers the possibility of tracking not only the chemical markers, such as the presence of carquejyl acetate, which can also be helpful in the B. trimera authentication/identification. The application of classification methods in standard samples revealed that PLS-DA models showed better performance on the calibration and validation sets than SIMCA model. However, PLS-DA and SIMCA applied to commercial samples showed that none ofthe commercial sa... Mostrar Tudo |
Palavras-Chave: |
Baccharis trimera; Caulopterae; Espectroscopia; Quimiotaxonomia. |
Thesagro: |
Baccharis; Taxonomia. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02640naa a2200289 a 4500 001 2121354 005 2020-06-09 008 2020 bl uuuu u00u1 u #d 022 $a0731-7085 024 7 $ahttps://doi.org/10.1016/j.jpba.2020.113200$2DOI 100 1 $aDUTRA, L. M. 245 $a1H HR-MAS NMR and chemometric methods for discrimination and classification of Baccharis (Asteraceae)$bA proposal for quality control of Baccharis trimera.$h[electronic resource] 260 $c2020 520 $aBaccharis trimera is a species recognized by health agencies and recommended by the Brazilian Pharmacopoeia by having medicinal properties. In this work, HR-MAS NMR spectroscopy combined with chemometric tools, such as Principal Components Analysis (PCA), Partial Least Squares Discriminant Analysis (PLS-DA) and Soft Independent Modeling by Class Analogy (SIMCA), were used to evaluate the quality control and authenticity of commercial samples of Baccharis, as well as to discriminate B. trimera samples from other species of the Caulopterae section (B. articulata, B. trimera, B. junciformis, B. milleflora, and B. myriocephala). The high morphological similarity of these species makes it difficult for their identifications and discriminations, even by taxonomists. Different PCA pre-processing (autoscaling, Pareto scaling, and mean centering) allowed to discriminate B. trimera and B. myriocephala from the other species, mainly due to the presence of carquejyl acetate, indicated their chemical similarity. The 1H HR-MAS NMR spectral profile offers the possibility of tracking not only the chemical markers, such as the presence of carquejyl acetate, which can also be helpful in the B. trimera authentication/identification. The application of classification methods in standard samples revealed that PLS-DA models showed better performance on the calibration and validation sets than SIMCA model. However, PLS-DA and SIMCA applied to commercial samples showed that none ofthe commercial samples were classified as B. trimera, which suggested the lack of strict quality control regarding these products. The methodology developed in the present work might contribute to chemotaxonomy of the genus Baccharis. 650 $aBaccharis 650 $aTaxonomia 653 $aBaccharis trimera 653 $aCaulopterae 653 $aEspectroscopia 653 $aQuimiotaxonomia 700 1 $aSANTOS, A. D. da C. 700 1 $aLOURENÇO, A. V. F. 700 1 $aNAGATA, N. 700 1 $aHEIDEN, G. 700 1 $aCAMPOS, F. R. 700 1 $aBARISON, A. 773 $tJournal of Pharmaceutical and Biomedical Analysis$gv. 184, 113200, 2020.
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Embrapa Clima Temperado (CPACT) |
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Biblioteca(s): |
Embrapa Acre. |
Data corrente: |
08/03/2018 |
Data da última atualização: |
02/07/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SILVA, P. H. da; GOMIDE, L. R.; FIGUEIREDO, E. O.; CARVALHO, L. M. T. de; FERRAZ FILHO, A. C. |
Afiliação: |
Paulo Henrique da Silva, Universidade Federal de Lavras; Lucas Rezende Gomide, Universidade Federal de Lavras; EVANDRO ORFANO FIGUEIREDO, CPAF-Acre; Luis Marcelo Tavares de Carvalho, Universidade Federal de Lavras; Antônio Carlos Ferraz Filho, Universidade Federal do Piauí. |
Título: |
Optimal selective logging regime and log landing location models: a case study in the Amazon forest. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Acta Amazonica, Manaus, v. 48, n. 1, p. 18-27, 2018. |
ISSN: |
0044-5967 (impresso) |
DOI: |
10.1590/1809-4392201603113 |
Idioma: |
Inglês |
Conteúdo: |
Reduced-impact logging is a well known practice applied in most sustainable forest management plans in the Amazon. Nevertheless, there are still ways to improve the operational planning process. Therefore, the aim of this study was to create an integer linear programming (ILP) to fill in the knowledge gaps in the decision support system of reduced impact logging explorations. The minimization of harvest tree distance to wood log landing was assessed. Forest structure aspects, income and wood production were set in the model, as well as the adjacency constraints. Data are from a dense ombrophylous forest in the western Brazilian Amazon. We applied the phytosociological analysis and BDq method to define the selective logging criteria. Then, ILP models were formulated to allow the application of the constraints. Finally, 32 scenarios (unbalanced forest, UF, and balanced forest, BF) were generated and compared with real executed plans (RE). Robust results were achieved and the expected finding of each scenario was met. The feasibility to integrate ILP models in uneven-aged forest management projects was endorsed. Consequently, the UF and BF scenarios tested were efficient and concise, introducing new advances for forest management plans in the Amazon. The proposed models have a high potential to improve the selective logging activities in the Amazon forest. A exploração de impacto reduzido é uma prática bem conhecida e aplicada na maioria dos planos de manejo florestal sustentável na Amazônia. Todavia, ainda há a possibilidade de melhoria do processo de planejamento da operação. Diante da falta de métodos auxiliares à tomada de decisão, o objetivo do trabalho foi desenvolver modelos de programação linear inteira (PLI) para suprir esta demanda. Considerou-se a minimização da distância entre as árvores exploradas e os pátios de estocagem de madeira. Aspectos estruturais, econômicos e produtivos foram incorporados ao modelo, bem como restrições de adjacência. Os dados derivam de uma floresta ombrófila densa na Amazônia Ocidental. Previamente, utilizou-se uma análise fitossociológica e o método BDq como critério de remoção. Posteriormente, modelos de PLI foram formulados para exemplificar as aplicações. Finalmente, 32 cenários (para floresta desbalaceada, UF, e floresta balanceada, BF) foram gerados e comparados com o plano executado no campo (RE). Resultados robustos foram obtidos e atenderam às expectativas de cada cenário. A viabilidade da integração dos modelos de PLI em projetos de manejo de florestas ineqüiâneas foi testado. Os cenários UF e BF testados foram eficientes e concisos, confirmando seu potencial para aumentar a eficiência de planos de exploração madeireira e manejo florestal na Amazônia. MenosReduced-impact logging is a well known practice applied in most sustainable forest management plans in the Amazon. Nevertheless, there are still ways to improve the operational planning process. Therefore, the aim of this study was to create an integer linear programming (ILP) to fill in the knowledge gaps in the decision support system of reduced impact logging explorations. The minimization of harvest tree distance to wood log landing was assessed. Forest structure aspects, income and wood production were set in the model, as well as the adjacency constraints. Data are from a dense ombrophylous forest in the western Brazilian Amazon. We applied the phytosociological analysis and BDq method to define the selective logging criteria. Then, ILP models were formulated to allow the application of the constraints. Finally, 32 scenarios (unbalanced forest, UF, and balanced forest, BF) were generated and compared with real executed plans (RE). Robust results were achieved and the expected finding of each scenario was met. The feasibility to integrate ILP models in uneven-aged forest management projects was endorsed. Consequently, the UF and BF scenarios tested were efficient and concise, introducing new advances for forest management plans in the Amazon. The proposed models have a high potential to improve the selective logging activities in the Amazon forest. A exploração de impacto reduzido é uma prática bem conhecida e aplicada na maioria dos planos de manejo florestal sustentáv... Mostrar Tudo |
Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Manejo florestal sustentável; Manejo forestal; Optimización de los sistemas; Patios de clasificación; Porto Acre (AC); Programación lineal; Reduced-impact logging; Selective logging; Silvicultura sustentable; Western Amazon. |
Thesagro: |
Administração florestal; Estocagem; Extração da madeira; Floresta tropical; Método de otimização; Programação linear. |
Thesaurus NAL: |
Linear programming; Sort yards; Sustainable forestry; System optimization; Tropical forests. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/173701/1/26524.pdf
|
Marc: |
LEADER 04272naa a2200481 a 4500 001 2088841 005 2021-07-02 008 2018 bl uuuu u00u1 u #d 022 $a0044-5967 (impresso) 024 7 $a10.1590/1809-4392201603113$2DOI 100 1 $aSILVA, P. H. da 245 $aOptimal selective logging regime and log landing location models$ba case study in the Amazon forest.$h[electronic resource] 260 $c2018 520 $aReduced-impact logging is a well known practice applied in most sustainable forest management plans in the Amazon. Nevertheless, there are still ways to improve the operational planning process. Therefore, the aim of this study was to create an integer linear programming (ILP) to fill in the knowledge gaps in the decision support system of reduced impact logging explorations. The minimization of harvest tree distance to wood log landing was assessed. Forest structure aspects, income and wood production were set in the model, as well as the adjacency constraints. Data are from a dense ombrophylous forest in the western Brazilian Amazon. We applied the phytosociological analysis and BDq method to define the selective logging criteria. Then, ILP models were formulated to allow the application of the constraints. Finally, 32 scenarios (unbalanced forest, UF, and balanced forest, BF) were generated and compared with real executed plans (RE). Robust results were achieved and the expected finding of each scenario was met. The feasibility to integrate ILP models in uneven-aged forest management projects was endorsed. Consequently, the UF and BF scenarios tested were efficient and concise, introducing new advances for forest management plans in the Amazon. The proposed models have a high potential to improve the selective logging activities in the Amazon forest. A exploração de impacto reduzido é uma prática bem conhecida e aplicada na maioria dos planos de manejo florestal sustentável na Amazônia. Todavia, ainda há a possibilidade de melhoria do processo de planejamento da operação. Diante da falta de métodos auxiliares à tomada de decisão, o objetivo do trabalho foi desenvolver modelos de programação linear inteira (PLI) para suprir esta demanda. Considerou-se a minimização da distância entre as árvores exploradas e os pátios de estocagem de madeira. Aspectos estruturais, econômicos e produtivos foram incorporados ao modelo, bem como restrições de adjacência. Os dados derivam de uma floresta ombrófila densa na Amazônia Ocidental. Previamente, utilizou-se uma análise fitossociológica e o método BDq como critério de remoção. Posteriormente, modelos de PLI foram formulados para exemplificar as aplicações. Finalmente, 32 cenários (para floresta desbalaceada, UF, e floresta balanceada, BF) foram gerados e comparados com o plano executado no campo (RE). Resultados robustos foram obtidos e atenderam às expectativas de cada cenário. A viabilidade da integração dos modelos de PLI em projetos de manejo de florestas ineqüiâneas foi testado. Os cenários UF e BF testados foram eficientes e concisos, confirmando seu potencial para aumentar a eficiência de planos de exploração madeireira e manejo florestal na Amazônia. 650 $aLinear programming 650 $aSort yards 650 $aSustainable forestry 650 $aSystem optimization 650 $aTropical forests 650 $aAdministração florestal 650 $aEstocagem 650 $aExtração da madeira 650 $aFloresta tropical 650 $aMétodo de otimização 650 $aProgramação linear 653 $aAcre 653 $aAmazonia Occidental 653 $aAmazônia Ocidental 653 $aManejo florestal sustentável 653 $aManejo forestal 653 $aOptimización de los sistemas 653 $aPatios de clasificación 653 $aPorto Acre (AC) 653 $aProgramación lineal 653 $aReduced-impact logging 653 $aSelective logging 653 $aSilvicultura sustentable 653 $aWestern Amazon 700 1 $aGOMIDE, L. R. 700 1 $aFIGUEIREDO, E. O. 700 1 $aCARVALHO, L. M. T. de 700 1 $aFERRAZ FILHO, A. C. 773 $tActa Amazonica, Manaus$gv. 48, n. 1, p. 18-27, 2018.
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