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| Registros recuperados : 16 | |
| 1. |  | LOURENÇO, A. V.; LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; SÁ, T. D. de A. Produtividade animal x ambiente físico em zebuínos e bubalinos na Ilha de Marajó. In: SEMINÁRIO DE INICIAÇÃO CIENTIFICA DA FCAP, 7.; SEMINÁRIO DE INICIAÇÃO CIENTIFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 1., 1997, Belém, PA. Resumos. Belém, PA: FCAP, 1997. p. 198.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 2. | | LOURENÇO, A. V.; LOURENCO JUNIOR, J. de B.; SIMAO NETO, M.; SÁ, T. D. de A. Variáveis produtivos de bovinos e bubalinos em ecossistema de pastagem cultivada da Ilha de Marajó. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA CNPq/FCAP/EMBRAPA, 6., 1996, Belém, PA. Resumos. Belém, PA: FCAP, 1996. p. 49.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Liveweight gain of grazing water buffaloes supplemented with concentrates in Marajo Island, Brasil. Buffalo Journal, v. 4, n. 1, p. 11-19, 1998.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 4. | | LOURENÇO JUNIOR, J. de B.; SÁ, T. D. A.; SIMÃO NETO, M.; CAMARÃO, A. P.; LOURENÇO, A. V. Environmental effects on cattle and buffaloes in cultivated pasture of Marajo Island, Brazil. In: WORLD BUFFALO CONGRESS, 5., 1997, Caserta Italy. Proceedings. Caserta Italy: [s.n.], 1997. p. 424-427.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 5. | | LOURENÇO, A. V. F.; MOREIRA, A. L.; BRUGINSKI, E. R. D.; ZUCCOLOTTO, T.; HEIDEN, G.; CAMPOS, F. R. Rapid method for the classification of Baccharis species by Fourier Transform Infrared (FT-IR) spectroscopy and chemometrics analysis. In: BRAZILIAN CONFERENCE ON NATURAL PRODUCTS, 5.; ANUAL MEETING ON MICROMOLECULAR EVOLUTION, SYSTEMATICS AND ECOLOGY, 31., 2015, Atibaia. Annals... Campinas: UNICAMP, 2015. Disponivel em: http://www.infobibos.com/bcnp/cd/authors.html . Acesso em: 16 dez. 2015.| Biblioteca(s): Embrapa Clima Temperado. |
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| 6. | | LOURENÇO JUNIOR, J. B.; SIMÃO NETO, M.; DUTRA, S.; MORAES, M. P. S.; LOURENÇO, A. V.; SILVA, J. A. R. Water buffalo milk production in Marajo Island, Brazil. Buffalo Journal, n. 1, p. 97-104, 1999. il.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 7. | | LOURENÇO JUNIOR, J. B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Climatic effects on the behaviour of cattle and water buffaloes in the Marajó island, Brazil. Buffalo Journal, v. 1, p. 37-52, 2001. il.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 8. | | LOURENÇO JUNIOR, J. B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Influência de fatores climáticos sobre a fisiologia de bovídeos na Ilha de Marajó. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistema: com enfoque no contexto de seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 544.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 9. | | DUTRA, L. M.; SANTOS, A. D. da C.; LOURENÇO, A. V. F.; NAGATA, N.; HEIDEN, G.; CAMPOS, F. R.; BARISON, A. 1H HR-MAS NMR and chemometric methods for discrimination and classification of Baccharis (Asteraceae): A proposal for quality control of Baccharis trimera. Journal of Pharmaceutical and Biomedical Analysis, v. 184, 113200, 2020.| Biblioteca(s): Embrapa Clima Temperado. |
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| 10. | | LOURENÇO JUNIOR, J. B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Relationships between climatic factors and liveweight gains of water buffaloes and cattle in Marajo island, Brazil. Buffalo Journal, v. 16, n. 3, p. 287-302, 2000. il.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 11. | | LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; SÁ, T. D. de A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Índice de conforto térmico em bovídeos na Ilha de Marajó. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistemas: com enfoque em seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 41.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 12. | | LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Índice de temperatura umidade para bovídeos na Ilha de Marajó. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistemas: com enfoque em seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 42.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 13. | | LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Efeitos climáticos sobre o comportamento de bovídeos na Ilha de Marajó. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistemas: com enfoque em seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 41-42.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 14. | | LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Carcass characteristics and composition of cattle and water buffaloes raised on cultivated pasture ecosystem Marajo island, Brazil. Buffalo Journal, v. 16, n. 3, p. 277-285, 2000. il.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 15. | | LOURENÇO JUNIOR, J. B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Produção de carne de bovídeos em ecossistema de pastagem cultivada da Ilha de Marajó. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistemas: com enfoque em seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 331.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 16. | | ZUCCOLOTTO, T.; BRESSAN, J.; LOURENÇO, A. V. F.; BRUGINSKI, E.; VEIGA, A.; MARINHO, J. V. N.; RAESKI, P. A.; HEIDEN, G.; SALVADOR, M. J.; MURAKAMI, F. S.; BUDEL, J. M.; CAMPOS, F. R. Chemical, Antioxidant, and Antimicrobial Evaluation of Essential Oils and an Anatomical Study of the Aerial Parts from Baccharis Species (Asteraceae) Chemystry & Biodiversity, v. 16, e1800547, 2019.| Biblioteca(s): Embrapa Clima Temperado. |
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| Registros recuperados : 16 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
24/03/2020 |
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Data da última atualização: |
09/06/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
DUTRA, L. M.; SANTOS, A. D. da C.; LOURENÇO, A. V. F.; NAGATA, N.; HEIDEN, G.; CAMPOS, F. R.; BARISON, A. |
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Afiliação: |
LIVIA MACEDO DUTRA; ALAN DIEGO DA CONCEIÇÃO SANTOS; ALLAN VINICIUS FELIX LOURENÇO; NOEMI NAGATA; GUSTAVO HEIDEN, CPACT; FRANCINETE RAMOS CAMPOS; ANDERSSON BARISON. |
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Título: |
1H HR-MAS NMR and chemometric methods for discrimination and classification of Baccharis (Asteraceae): A proposal for quality control of Baccharis trimera. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Pharmaceutical and Biomedical Analysis, v. 184, 113200, 2020. |
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ISSN: |
0731-7085 |
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DOI: |
https://doi.org/10.1016/j.jpba.2020.113200 |
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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 |
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Palavras-Chave: |
Baccharis trimera; Caulopterae; Espectroscopia; Quimiotaxonomia. |
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Thesagro: |
Baccharis; Taxonomia. |
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Categoria do assunto: |
-- |
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Marc: |
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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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