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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
09/04/2015 |
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Data da última atualização: |
09/04/2015 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PAIVA, J. R. de; GONÇALVES, P. de S.; VALOIS, A. C. C. |
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Título: |
Performance of rubber clones in Manaus - progress research report. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
In: SEMINÁRIO NACIONAL DA SERINGUEIRA, 4., 1984, Salvador. Resumo dos trabalhos. [S.l.]: SUDHEVEA/EMBRAPA/EMBRATER/Banco Econômico, [1984]. p. 173. |
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Idioma: |
Português |
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Thesagro: |
Borracha. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/122077/1/p.-173.pdf
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Marc: |
LEADER 00504nam a2200133 a 4500
001 2013163
005 2015-04-09
008 1984 bl uuuu u00u1 u #d
100 1 $aPAIVA, J. R. de
245 $aPerformance of rubber clones in Manaus - progress research report.
260 $aIn: SEMINÁRIO NACIONAL DA SERINGUEIRA, 4., 1984, Salvador. Resumo dos trabalhos. [S.l.]: SUDHEVEA/EMBRAPA/EMBRATER/Banco Econômico, [1984]. p. 173.$c1984
650 $aBorracha
700 1 $aGONÇALVES, P. de S.
700 1 $aVALOIS, A. C. C.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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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: |
25/11/2010 |
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Data da última atualização: |
30/11/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
CÁRCEL, J. A.; NOGUEIRA, R. I.; GARCÍA-PÉREZ, J. V.; SANJUÁN, N.; RIERA, E. |
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Afiliação: |
JUAN A. CÁRCEL, ASPA GROUP; REGINA ISABEL NOGUEIRA, CTAA; J. V. GARCÍA-PÉREZ, ASPA GROUP; N. SANJUÁN, ASPA GROUP; E. RIERA, ASPA GROUP. |
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Título: |
Ultrasound effects on the mass transfer processes during drying kinetic of olive leaves (Olea Europea, var. Serrana). |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Defect and Diffusion Forum, v. 297-301, p. 1083-1090, 2010. |
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DOI: |
10.4028/www.scientific.net/DDF.297-301.1083 |
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Idioma: |
Inglês |
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Conteúdo: |
The large amount of materials derived from olive trees pruning may constitute a source of compounds with antioxidant activity. The air drying of raw matter is a previous stage before extraction preserving the raw matter and avoiding the interference of water on the process but it constitutes a slow and high energy demanding process. In this sense, the application of high intensity ultrasound could affect the mass transfer rate. In order to address the influence of ultrasound on the drying process of olive leaves, air drying experiments were carried out (40ºC and1 m/s) without (0 W) and with ultrasound application (8, 16, 25 and 33 kW/m3). The different drying conditions were tested by triplicate. To model the experimental data, diffusional models considering or not the external resistance to mass transfer were used. The model without considering external resistance did not fit well to the experimental data. However, the model including external resistance achieved percentages of explained variance above 99.7%. The influence of ultrasound on diffusivity was not significant but a significant dependence was found for the mass transfer coefficient, proportional to the power density applied. |
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Palavras-Chave: |
Cinética; Folha de oliveira; Oliva; Transferência de massa. |
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Thesagro: |
Olea Europaea; Secagem; Ultrassom. |
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Thesaurus NAL: |
Kinetics; Ultrasonics. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 02052naa a2200289 a 4500
001 1868020
005 2012-11-30
008 2010 bl uuuu u00u1 u #d
024 7 $a10.4028/www.scientific.net/DDF.297-301.1083$2DOI
100 1 $aCÁRCEL, J. A.
245 $aUltrasound effects on the mass transfer processes during drying kinetic of olive leaves (Olea Europea, var. Serrana).
260 $c2010
520 $aThe large amount of materials derived from olive trees pruning may constitute a source of compounds with antioxidant activity. The air drying of raw matter is a previous stage before extraction preserving the raw matter and avoiding the interference of water on the process but it constitutes a slow and high energy demanding process. In this sense, the application of high intensity ultrasound could affect the mass transfer rate. In order to address the influence of ultrasound on the drying process of olive leaves, air drying experiments were carried out (40ºC and1 m/s) without (0 W) and with ultrasound application (8, 16, 25 and 33 kW/m3). The different drying conditions were tested by triplicate. To model the experimental data, diffusional models considering or not the external resistance to mass transfer were used. The model without considering external resistance did not fit well to the experimental data. However, the model including external resistance achieved percentages of explained variance above 99.7%. The influence of ultrasound on diffusivity was not significant but a significant dependence was found for the mass transfer coefficient, proportional to the power density applied.
650 $aKinetics
650 $aUltrasonics
650 $aOlea Europaea
650 $aSecagem
650 $aUltrassom
653 $aCinética
653 $aFolha de oliveira
653 $aOliva
653 $aTransferência de massa
700 1 $aNOGUEIRA, R. I.
700 1 $aGARCÍA-PÉREZ, J. V.
700 1 $aSANJUÁN, N.
700 1 $aRIERA, E.
773 $tDefect and Diffusion Forum$gv. 297-301, p. 1083-1090, 2010.
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