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| Registros recuperados : 10 | |
| 3. |  | SANTOS, L. R. dos; ZANGIROLAMI, M. de S.; SILVA, N. O.; VALDERRAMA, P.; MARÇO, P. H. Rapid non-invasive assessment of quality parameters in ground soybean using near-infrared spectroscopy. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 1, p. 97-104, jan. 2018. Título em português: Avaliação rápida não invasiva de parâmetros de qualidade em soja triturada com uso de espectroscopia de infravermelho próximo.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | BELTRAME, K. K.; SOUZA, A. M. de; COELHO, M. R.; WINKLER, T. C. B.; SOUZA, W. E.; VALDERRAMA, P. Soil organic carbon determination using NIRS: evaluation of dichromate oxidation and dry combustion analysis as reference methods in multivariate calibration. Journal of the Brazilian Chemical Society, v. 27, n. 9, p. 1527-1532, 2016.| Biblioteca(s): Embrapa Solos. |
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| 7. | | SOUZA, A. M. de; FILGUEIRAS, P. R.; COELHO, M. R.; FONTANA, A.; WINKLER, T. C. B.; VALDERRAMA, P.; POPPI, R. J. Validation of the near infrared spectroscopy method for determining soil organic carbon by employing a proficiency assay for fertility laboratories. Journal of Near Infrared Spectroscopy, v. 24, n. 3, p. 293-303, 2016.| Biblioteca(s): Embrapa Solos. |
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| 8. | | SOUZA, A. M. de; COELHO, M. R.; FONTANA, A.; WINKLER, T. C. B.; JUCÁ, N. M. C.; CASTRO, T. B. de; SHIMIDT, G. B.; VALDERRAMA, P.; POPPIA, R. J. Analytical validation of a multivariate calibration method for determination of soil organic carbon by near infrared spectroscopy. In: CHEMOMETRICS IN ANALYTICAL CHEMISTRY CONFERENCE, 2014, Richmond, VA. Resumo... Richmond, VA: Virginia Commonweath University, 2014. 1 p.| Biblioteca(s): Embrapa Solos. |
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| 9. | | BAQUETA, M. R.; VALDERRAMA, P.; MANDRONE, M.; POLI, F.; COQUEIRO, A.; COSTA-SANTOS, A. C.; REBELLATO. A. A.; LUZ, G. M.; ROCHA, R. B.; PALLONE, J. A. L.; MARINI, F. H NMR, FAAS, portable NIR, benchtop NIR, and ATR-FTIR-MIR spectroscopies for characterizing and discriminating new Brazilian Canephora coffees in a multi-block analysis perspective. Chemometrics and Intelligent Laboratory Systems, v. 240, 2023.| Biblioteca(s): Embrapa Rondônia. |
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| 10. | | FOLLMAN, H. D. M.; MARTINS, A. F.; NOBRE, T. M.; MELO, J. D. B.; CELLET, T. S. P.; VALDERRAMA, P.; CORREA, D. S.; MUNIZ, E. C.; OLIVEIRA JUNIOR, O. N. Extent of shielding by counterions determines the bactericidal activity of N,N,N,-trimethyl chitosan salts. Carbohydrate polymers, [S. l.], v. 137, p. 418-425, 2016.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 10 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
16/05/2024 |
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Data da última atualização: |
16/05/2024 |
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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: |
SOUZA, J. C. de; COUTO, C. de C.; MAMEDE, A. M. G. N.; VALDERRAMA, P.; TOCI, A. T.; FREITAS-SILVA, O. |
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Afiliação: |
JOÃO CARLOS DE SOUZA, UNIVERSIDADE ESTADUAL PAULISTA “JÚLIO DE MESQUITA FILHO"; CINTHIA DE CARVALHO COUTO, UNIVERSIDADE FEDERAL DO ESTADO DO RIO DE JANEIRO; ALEXANDRA MARA GOULART NUNES MAMEDE, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DA BAHIA; PATRÍCIA VALDERRAMA, UNIVERSIDADE FEDERAL TECNOLÓGICA DO PARANÁ; ALINE THEODORO TOCI, UNIVERSIDADE DA INTEGRAÇÃO LATINO-AMERICANA; OTNIEL FREITAS SILVA, CTAA. |
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Título: |
Using volatile compounds for the identification of coffee adulterants: marker compounds and non-targeted analysis. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
European Food Research and Technology, p. 1438-2377, 2024. |
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DOI: |
https://doi.org/10.1007/s00217-024-04563-3 |
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Idioma: |
Inglês |
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Conteúdo: |
Cofee is one of the most highly valued, consumed and comercialized foods in the world. Due to its considerable importance, it has become the target of numerous adulterations. Detecting a possible adulteration and the presence of additional adulterants in cofee has become an issue of great concern mainly because the compounds used as adulterants exhibit physical features very similar to ground roasted cofee. Aiming to overcome these difculties, this work reports the development and application of a relatively faster, highly efective and reliable method for the detection and identifcation of adulterations in roasted cofee through the analysis of the composition of the volatile fraction in the presence of adulterants such as rice, corn, soybeans and barley. The proposed method was based on gas chromatography coupled with mass spectrometry (GC–MS) and chemometric tools. The application of the method led to the exclusive identifcation of many compounds in the volatile fraction of the adulterants investigated. The adulterants, despite having compounds similar to cofee, difered in terms of their volatile profles, and consisted mainly of hydrocarbons, aldehydes, esters and carboxylic acids. Among all the compounds identifed, fve compounds were found to be the main determinants of adulteration: 2-furanmethanol-acetate, 2-methoxy-4-vinylphenol, 5-methyl-2-furancarboxaldehyde, 2-furanmethanol and glycerol-1,2-diacetate. |
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Palavras-Chave: |
Chemometric analysis; Cofee adulteration; Cofee quality; Ground roasted cofee. |
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Thesaurus NAL: |
Volatile compounds. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02254naa a2200253 a 4500
001 2164293
005 2024-05-16
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s00217-024-04563-3$2DOI
100 1 $aSOUZA, J. C. de
245 $aUsing volatile compounds for the identification of coffee adulterants$bmarker compounds and non-targeted analysis.$h[electronic resource]
260 $c2024
520 $aCofee is one of the most highly valued, consumed and comercialized foods in the world. Due to its considerable importance, it has become the target of numerous adulterations. Detecting a possible adulteration and the presence of additional adulterants in cofee has become an issue of great concern mainly because the compounds used as adulterants exhibit physical features very similar to ground roasted cofee. Aiming to overcome these difculties, this work reports the development and application of a relatively faster, highly efective and reliable method for the detection and identifcation of adulterations in roasted cofee through the analysis of the composition of the volatile fraction in the presence of adulterants such as rice, corn, soybeans and barley. The proposed method was based on gas chromatography coupled with mass spectrometry (GC–MS) and chemometric tools. The application of the method led to the exclusive identifcation of many compounds in the volatile fraction of the adulterants investigated. The adulterants, despite having compounds similar to cofee, difered in terms of their volatile profles, and consisted mainly of hydrocarbons, aldehydes, esters and carboxylic acids. Among all the compounds identifed, fve compounds were found to be the main determinants of adulteration: 2-furanmethanol-acetate, 2-methoxy-4-vinylphenol, 5-methyl-2-furancarboxaldehyde, 2-furanmethanol and glycerol-1,2-diacetate.
650 $aVolatile compounds
653 $aChemometric analysis
653 $aCofee adulteration
653 $aCofee quality
653 $aGround roasted cofee
700 1 $aCOUTO, C. de C.
700 1 $aMAMEDE, A. M. G. N.
700 1 $aVALDERRAMA, P.
700 1 $aTOCI, A. T.
700 1 $aFREITAS-SILVA, O.
773 $tEuropean Food Research and Technology, p. 1438-2377, 2024.
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