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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
21/06/2021 |
Data da última atualização: |
10/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CÔNSOLO, N. R. B.; SILVA, J.; BUARQUE, V. L. M.; SAMUELSSON, L. M.; MILLER, P.; MACLEAN, P. H.; MORAES, T. B.; BARBOSA, L. C. G. S.; HIGUERA-PADILLA, A.; COLNAGO, L. A.; SARAN NETTO, A.; GERRARD, D. E.; SILVA, S. L. |
Afiliação: |
LUIZ ALBERTO COLNAGO, CNPDIA. |
Título: |
Using TD-NMR relaxometry and 1D 1 H NMR spectroscopy to evaluate aging of Nellore beef. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Meat Science, v. 181, a. 108606, 2021. |
Páginas: |
1-10 |
ISSN: |
0309-1740 |
DOI: |
https://doi.org/10.1016/j.meatsci.2021.108606 |
Idioma: |
Inglês |
Conteúdo: |
The aim of this study was to explore the use of TD-NMR relaxometry and 1 H NMR spectroscopy-based for detecting differences in meat quality attributes. There was limited association between various TD-NMR signals and any physicochemical parameters of fresh and aged meat differing in tenderness ratings. Samples were then divided into three groups based on statistical changes in metabolite concentration. Group A samples possessed near linear increases in metabolite concentration over aging time; whereas samples assigned to Groups B and C were characterized by increases in metabolites that peaked between 7 and 14 days, and up to 14 days aging, respectively. 1 H NMR spectroscopy discriminated meat quality using changes in metabolites reflective of glycolysis, the citric acid cycle, protein degradation, amino acid generation and purine metabolisms. These data suggest segregation of meat quality is possible using both NMR technologies but additional work is necessary to understand fully their utility in a commercial industry setting. |
Palavras-Chave: |
1D 1 H NMR spectroscopy; Aging time; TD-NMR relaxometry. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02014naa a2200337 a 4500 001 2132428 005 2022-06-10 008 2021 bl uuuu u00u1 u #d 022 $a0309-1740 024 7 $ahttps://doi.org/10.1016/j.meatsci.2021.108606$2DOI 100 1 $aCÔNSOLO, N. R. B. 245 $aUsing TD-NMR relaxometry and 1D 1 H NMR spectroscopy to evaluate aging of Nellore beef.$h[electronic resource] 260 $c2021 300 $a1-10 520 $aThe aim of this study was to explore the use of TD-NMR relaxometry and 1 H NMR spectroscopy-based for detecting differences in meat quality attributes. There was limited association between various TD-NMR signals and any physicochemical parameters of fresh and aged meat differing in tenderness ratings. Samples were then divided into three groups based on statistical changes in metabolite concentration. Group A samples possessed near linear increases in metabolite concentration over aging time; whereas samples assigned to Groups B and C were characterized by increases in metabolites that peaked between 7 and 14 days, and up to 14 days aging, respectively. 1 H NMR spectroscopy discriminated meat quality using changes in metabolites reflective of glycolysis, the citric acid cycle, protein degradation, amino acid generation and purine metabolisms. These data suggest segregation of meat quality is possible using both NMR technologies but additional work is necessary to understand fully their utility in a commercial industry setting. 653 $a1D 1 H NMR spectroscopy 653 $aAging time 653 $aTD-NMR relaxometry 700 1 $aSILVA, J. 700 1 $aBUARQUE, V. L. M. 700 1 $aSAMUELSSON, L. M. 700 1 $aMILLER, P. 700 1 $aMACLEAN, P. H. 700 1 $aMORAES, T. B. 700 1 $aBARBOSA, L. C. G. S. 700 1 $aHIGUERA-PADILLA, A. 700 1 $aCOLNAGO, L. A. 700 1 $aSARAN NETTO, A. 700 1 $aGERRARD, D. E. 700 1 $aSILVA, S. L. 773 $tMeat Science$gv. 181, a. 108606, 2021.
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Embrapa Instrumentação (CNPDIA) |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
29/08/2017 |
Data da última atualização: |
22/12/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
AGUIAR, D. R. de; OLIVEIRA JUNIOR, R. C. de; BELDINI, T. P.; SILVA, R. da; TAPAJÓS, R. |
Afiliação: |
Diego Ribeiro de Aguiar, INPA; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; Troy Patrick Beldini, UFOPA; Rodrigo da Silva, UFOPA; Raphael Tapajós, UFOPA. |
Título: |
Evapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
African Journal of Agricultural Research, v. 12, n. 18, p. 1577-1586, May 2017. |
DOI: |
10.5897/AJAR2017.12146 |
Idioma: |
Inglês |
Conteúdo: |
This work examines whether management causes changes in evapotranspiration (ET) surface conductance (gs), aerodynamic conductance (ga) and the decoupling factor (Ω) in managed and natural forest sites in a tropical rain forest in the Amazon. The study was conducted in the Tapajós National Forest (FNT) in managed (logged) and natural (unlogged) forests, which have micrometeorological towers for data capture. For ET estimation, the Penman-Monteith (PM) and Eddy Covariance (EC) equations were used. The models were significantly different only for unlogged (PM 134.9±15.9 mm.month-1 and EC 100.9±11.1 mm.month-1), while the means of the logged site were PM 111.1±15.7 mm.month-1 and EC 108.5±18.3 mm.month-1. Each area has different characteristics for the surface variables, ga, gs and Ω, and therefore the sites were different from each other for the study variables. However, logged ET did not differ for the PM, while EC decreased in the year after the management intervention, and was then followed by an increase. |
Palavras-Chave: |
Condutância aerodinâmica; Fator de dissociação; Tapajós; Vapor de água. |
Thesagro: |
Floresta Tropical. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163139/1/DIEGO-2017.pdf
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Marc: |
LEADER 01800naa a2200241 a 4500 001 2074598 005 2021-12-22 008 2017 bl uuuu u00u1 u #d 024 7 $a10.5897/AJAR2017.12146$2DOI 100 1 $aAGUIAR, D. R. de 245 $aEvapotranspiration and control mechanisms in managed Amazonian forest in, Pará, Brazil.$h[electronic resource] 260 $c2017 520 $aThis work examines whether management causes changes in evapotranspiration (ET) surface conductance (gs), aerodynamic conductance (ga) and the decoupling factor (Ω) in managed and natural forest sites in a tropical rain forest in the Amazon. The study was conducted in the Tapajós National Forest (FNT) in managed (logged) and natural (unlogged) forests, which have micrometeorological towers for data capture. For ET estimation, the Penman-Monteith (PM) and Eddy Covariance (EC) equations were used. The models were significantly different only for unlogged (PM 134.9±15.9 mm.month-1 and EC 100.9±11.1 mm.month-1), while the means of the logged site were PM 111.1±15.7 mm.month-1 and EC 108.5±18.3 mm.month-1. Each area has different characteristics for the surface variables, ga, gs and Ω, and therefore the sites were different from each other for the study variables. However, logged ET did not differ for the PM, while EC decreased in the year after the management intervention, and was then followed by an increase. 650 $aFloresta Tropical 653 $aCondutância aerodinâmica 653 $aFator de dissociação 653 $aTapajós 653 $aVapor de água 700 1 $aOLIVEIRA JUNIOR, R. C. de 700 1 $aBELDINI, T. P. 700 1 $aSILVA, R. da 700 1 $aTAPAJÓS, R. 773 $tAfrican Journal of Agricultural Research$gv. 12, n. 18, p. 1577-1586, May 2017.
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