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2. | | CORRÊA, C. L. O.; LUNA, A. S.; PENHA, E. das M.; GOTTSCHALK, L. M. F. Determinação de acrilamida por espectrofluorêscencia em amostras de café. In: CONGRESSO BRASILEIRO DE PESQUISA S CAFEEIRAS, 44., 2018, Franca, SP. O Nosso café, melhorados desde o pé: Trabalhos apresentados. Varginha: Fundação Procafé, 2018. p. 182-183 23 a 26 out. 2018. Seção 4.5. Colheita, preparo, qualidade do café, consumo e saúde. Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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5. | | CORRÊA, C. L. O.; PENHA, E. das M.; ANJOS, M. R. dos; PACHECO, S.; FREITAS-SILVA, O.; LUNA, A. S.; GOTTSCHALK, L. M. F. Use of asparaginase for acrylamide mitigation in coffee and its influence on the content of caffeine, chlorogenic acid, and caffeic acid. Food Chemistry, v. 338, 128045, 6 p., fev. 2021. Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Rondônia. Para informações adicionais entre em contato com cpafro.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
16/12/2021 |
Data da última atualização: |
15/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
ROBERT, J. V.; GOIS, J. S. de; ROCHA, R. B.; LUNA, A. S. |
Afiliação: |
JARBAS VERISSIMO ROBERT, Rio de Janeiro State University; JEFFERSON S. DE GOIS, Rio de Janeiro State University; RODRIGO BARROS ROCHA, CPAF-RO; ADERVAL S. LUNA, Rio de Janeiro State University. |
Título: |
Direct solid sample analysis using synchronous fluorescence spectroscopy coupled with chemometric tools for the geographical discrimination of coffee samples. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Food Chemistry, v. 371, 131063, 2022. |
ISSN: |
0308-8146 |
DOI: |
https://doi.org/10.1016/j.foodchem.2021.131063 |
Idioma: |
Inglês |
Conteúdo: |
This work aims the study chemometric methods for the classification of the origin of coffee samples. Samples of finely pulverized coffee grains were analyzed by synchronous molecular fluorescence spectroscopy to carry out the classification. The spectral data of the samples were obtained in triplicate in two offsets: 10 nm (with emission wavelengths from 240 nm to 600 nm) and 40 nm (from 240 nm to 560 nm), all with 1 nm resolution. Different strategies were performed using the spectra obtained with the offsets of 10 nm and 40 nm and fused data at mid-level (10 nm + 40 nm). The performances of linear and nonlinear methods were compared, the best results were obtained from the raw data from the fusion at low-level of the 10 nm and 40 nm offset spectra with the Pareto optimization criterion. |
Palavras-Chave: |
Amazônia Ocidental; Rondônia; Western Amazon. |
Thesagro: |
Café; Coffea Canephora; Composição Química; Distribuição Geográfica; Método de Análise. |
Thesaurus NAL: |
Chemical analysis; Chemical composition; Geographical distribution; X-ray fluorescence spectroscopy. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 01849naa a2200325 a 4500 001 2137961 005 2023-03-15 008 2022 bl uuuu u00u1 u #d 022 $a0308-8146 024 7 $ahttps://doi.org/10.1016/j.foodchem.2021.131063$2DOI 100 1 $aROBERT, J. V. 245 $aDirect solid sample analysis using synchronous fluorescence spectroscopy coupled with chemometric tools for the geographical discrimination of coffee samples.$h[electronic resource] 260 $c2022 520 $aThis work aims the study chemometric methods for the classification of the origin of coffee samples. Samples of finely pulverized coffee grains were analyzed by synchronous molecular fluorescence spectroscopy to carry out the classification. The spectral data of the samples were obtained in triplicate in two offsets: 10 nm (with emission wavelengths from 240 nm to 600 nm) and 40 nm (from 240 nm to 560 nm), all with 1 nm resolution. Different strategies were performed using the spectra obtained with the offsets of 10 nm and 40 nm and fused data at mid-level (10 nm + 40 nm). The performances of linear and nonlinear methods were compared, the best results were obtained from the raw data from the fusion at low-level of the 10 nm and 40 nm offset spectra with the Pareto optimization criterion. 650 $aChemical analysis 650 $aChemical composition 650 $aGeographical distribution 650 $aX-ray fluorescence spectroscopy 650 $aCafé 650 $aCoffea Canephora 650 $aComposição Química 650 $aDistribuição Geográfica 650 $aMétodo de Análise 653 $aAmazônia Ocidental 653 $aRondônia 653 $aWestern Amazon 700 1 $aGOIS, J. S. de 700 1 $aROCHA, R. B. 700 1 $aLUNA, A. S. 773 $tFood Chemistry$gv. 371, 131063, 2022.
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