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| Registros recuperados : 15 | |
| 9. |  | SOUSA, P. C.; SANTOS, E. A. A.; SILVA, A. M.; BEZERRA, J. A. B.; SOUZA, A. L. P.; LIMA, G. L.; OLIVEIRA, M. F.; SILVA, A. R. Identification of ultrastructural and functional damage in sperm from six-banded armadillos (Euphractus sexcinctus) due to cryopreservation. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 36, n. 8, p. 767-774, ago. 2016.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 10. | | BEZERRA, J. A. B.; BEZERRA, F. S. B.; CASTELO, T. de S.; DANTAS, T. da C.; OLIVEIRA, I. R. S. de; SILVA, A. R. Análise objetiva da eficácia da dimetilformamida como crioprotetor para o sêmen caprino. In: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 6.; SIMPÓSIO NORDESTINO DE ALIMENTAÇÃO DE RUMINANTES, 7.; FÓRUM DE COORDENADORES DE PÓS GRADUAÇÃO EM PRODUÇÃO ANIMAL DO NORDESTE, 1.; FÓRUM DE AGROECOLOGIA RO RIO GRANDE DO NORTE, 1., 2010, Mossoró. Anais... Mossoró: Sociedade Nordestina de Producao Animal; UFERSA, 2010. 4 f. 1 CD-ROM.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 11. | | ALVES FILHO, E. G.; SILVA, L. M. A. e; BRITO, E. S. de; CASTRO, D. R. G.; BEZERRA, J. A.; SANCHES, E. A.; RODRIGUES, S.; FERNANDES, F. A. N.; CAMPELO, P. H. Effect of glow and dielectric barrier discharges plasma on volatile and non-volatile chemical profiling of camu-camu juice. Food and Bioprocess Technology, April, 2021.| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 12. | | NEVES, K. O. G.; SANTOS, M. F. C.; MAR, J. M.; PONTES, F. L. D.; TORMENA, C. F.; CHAVES, F. C. M.; CAMPOS, F. R.; SANCHES, E. A.; BEZERRA, J. A.; MACHADO, M. B.; SANTOS, A. D. C. 1H NMR chemical profile and antioxidant activity of Eugenia punicifolia extracts over seasons: a metabolomic pilot study. Journal of the Brazilian Chemical Society, v. 35, n. 7, e-20240010, 2024.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 13. | | RIBEIRO, U. A.; QUEIROZ, L. C.; MARASSI, A. G.; CARVALHO, A. S.; BARROS, G. A.; CONSALTER, D. M.; BEZERRA, J. A.; SANTOS, A. D. C.; COLNAGO, L. A.; MACHADO, M. B. Development of a TD-NMR method to monitor Brazil nuts oil content: A green and low-cost based approach. Journal of the Brazilian Chemical Society, vol. 32, n. 7, 2021. 1405-1412| Biblioteca(s): Embrapa Instrumentação. |
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| 14. | | RAMOS, A. S.; MAR, J. M.; SILVA, L. S. da; ACHO, L. D. R.; SILVA, B. J. P.; LIMA, E. S.; CAMPELO, P. H.; SANCHES, E. A.; BEZERRA, J. A.; CHAVES, F. C. M.; CAMPOS, F. R.; MACHADO, M. B. Pedra-ume caá fruit: An Amazon cherry rich in phenolic compounds with antiglycant and antioxidant properties. Food Research International, v. 123, p. 674-683, Sept. 2019.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 15. | | MOURA, G. H. F.; LELIS, I. C. N. G.; ROCHA, C. S. da; OLIVEIRA, I. V. P. de M.; BEZERRA, J. A. B.; PÉREZ CALABUIG, C. I.; FACCIOLI-MARTINS, P. Y.; PINHEIRO, R. R.; SOUSA, M. M. de; SANTOS, V. W. S. dos; ABREU, A. R. A.; ANTUNES, J. M. A. de P. Seroprevalence of Corynebacterium pseudotuberculosis and Toxoplasma gondii in sheep in semi-arid region of Ceará state. Ciência Rural, v. 50, n. 9, e20190760, Jul. 2020.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| Registros recuperados : 15 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
09/06/2021 |
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Data da última atualização: |
09/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
RIBEIRO, U. A.; QUEIROZ, L. C.; MARASSI, A. G.; CARVALHO, A. S.; BARROS, G. A.; CONSALTER, D. M.; BEZERRA, J. A.; SANTOS, A. D. C.; COLNAGO, L. A.; MACHADO, M. B. |
|
Afiliação: |
LUIZ ALBERTO COLNAGO, CNPDIA. |
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Título: |
Development of a TD-NMR method to monitor Brazil nuts oil content: A green and low-cost based approach. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of the Brazilian Chemical Society, vol. 32, n. 7, 2021. |
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Páginas: |
1405-1412 |
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DOI: |
https://dx.doi.org/10.21577/0103-5053.20210039 |
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Idioma: |
Inglês |
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Conteúdo: |
Growth in the international popularity of Brazil nuts oil (Bertholletia excelsa, Bonpl.) has demanded a closer look at quality aspects of the nuts. In this context, time-domain 1 H nuclear magnetic resonance spectroscopy (TD-NMR) can be a useful tool for assessing the lipid portion of such matrices. In this work, a TD-NMR method was developed and validated to assess the oil content directly from Brazil nuts following the ISO 10565:1998 and DOQ-CGCRE-008. Full validation was addressed covering the working range from 0.67 to 25.00 g (coefficient of determination, R2 = 0.9993). Limits of detection (LOD) and quantification (LOQ) were 0.20 and 0.67 g, respectively. The repeatability and intermediate precision assays met the guide requirements. Oil contents obtained in two laboratories (different equipment) were statistically similar (66.93 ± 4.69 and 70.13 ± 4.15%), highlighting the method’s robustness. The developed approach has the potential to be adopted as an industrial reference method for in situ monitoring of Brazil nuts oil contents. |
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Palavras-Chave: |
Low-field NMR; Oil quantification; Quality; Soxhlet; Validation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01987naa a2200313 a 4500
001 2132252
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008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://dx.doi.org/10.21577/0103-5053.20210039$2DOI
100 1 $aRIBEIRO, U. A.
245 $aDevelopment of a TD-NMR method to monitor Brazil nuts oil content$bA green and low-cost based approach.$h[electronic resource]
260 $c2021
300 $a1405-1412
520 $aGrowth in the international popularity of Brazil nuts oil (Bertholletia excelsa, Bonpl.) has demanded a closer look at quality aspects of the nuts. In this context, time-domain 1 H nuclear magnetic resonance spectroscopy (TD-NMR) can be a useful tool for assessing the lipid portion of such matrices. In this work, a TD-NMR method was developed and validated to assess the oil content directly from Brazil nuts following the ISO 10565:1998 and DOQ-CGCRE-008. Full validation was addressed covering the working range from 0.67 to 25.00 g (coefficient of determination, R2 = 0.9993). Limits of detection (LOD) and quantification (LOQ) were 0.20 and 0.67 g, respectively. The repeatability and intermediate precision assays met the guide requirements. Oil contents obtained in two laboratories (different equipment) were statistically similar (66.93 ± 4.69 and 70.13 ± 4.15%), highlighting the method’s robustness. The developed approach has the potential to be adopted as an industrial reference method for in situ monitoring of Brazil nuts oil contents.
653 $aLow-field NMR
653 $aOil quantification
653 $aQuality
653 $aSoxhlet
653 $aValidation
700 1 $aQUEIROZ, L. C.
700 1 $aMARASSI, A. G.
700 1 $aCARVALHO, A. S.
700 1 $aBARROS, G. A.
700 1 $aCONSALTER, D. M.
700 1 $aBEZERRA, J. A.
700 1 $aSANTOS, A. D. C.
700 1 $aCOLNAGO, L. A.
700 1 $aMACHADO, M. B.
773 $tJournal of the Brazilian Chemical Society, vol. 32$gn. 7, 2021.
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